Test results - Codility

Tasks Details

easy

1. TapeEquilibrium

Minimize the value |(A[0] + ... + A[P-1]) - (A[P] + ... + A[N-1])|.

Task Score

Correctness

Not assessed

Performance

Not assessed

A non-empty array A consisting of N integers is given. Array A represents numbers on a tape.

Any integer P, such that 0 < P < N, splits this tape into two non-empty parts: A[0], A[1], ..., A[P − 1] and A[P], A[P + 1], ..., A[N − 1].

The difference between the two parts is the value of: |(A[0] + A[1] + ... + A[P − 1]) − (A[P] + A[P + 1] + ... + A[N − 1])|

In other words, it is the absolute difference between the sum of the first part and the sum of the second part.

For example, consider array A such that:

A[0] = 3 A[1] = 1 A[2] = 2 A[3] = 4 A[4] = 3

We can split this tape in four places:

P = 1, difference = |3 − 10| = 7

P = 2, difference = |4 − 9| = 5

P = 3, difference = |6 − 7| = 1

P = 4, difference = |10 − 3| = 7

Write a function:

def solution(a)

that, given a non-empty array A of N integers, returns the minimal difference that can be achieved.

For example, given:

A[0] = 3 A[1] = 1 A[2] = 2 A[3] = 4 A[4] = 3

the function should return 1, as explained above.

Write an efficient algorithm for the following assumptions:

N is an integer within the range [2..100,000];

each element of array A is an integer within the range [−1,000..1,000].

Solution

Programming language used Ruby

Time spent on task 51 minutes

Notes

not defined yet

Task timeline

Code: 23:01:57 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5

def solution(a)
    # write your code in Ruby 1.9
    number_of_possible_cut_places = a.size - 1
    p number_of_possible_cut_places
end

Analysis

expand all Example tests

▶

example
example test

✘

WRONG ANSWER
got 4 expected 1

0.030 s

WRONG ANSWER, got 4 expected 1

stdout:

Code: 23:08:37 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    a.size.times do |index|
        result = a[0..index] + a[index..a.size]
        smallest_result = result if result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:6:in `block in solution': undefined method `<' for [3, 3, 1, 2, 4, 3]:Array (NoMethodError)
	from user.rb:4:in `times'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:6:in `block in solution': undefined method `<' for [3, 3, 1, 2, 4, 3]:Array (NoMethodError)
	from user.rb:4:in `times'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:09:27 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (a.size - 1).times do |index|
        result = a[0..index] + a[index..a.size]
        smallest_result = result if result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:6:in `block in solution': undefined method `<' for [3, 3, 1, 2, 4, 3]:Array (NoMethodError)
	from user.rb:4:in `times'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:6:in `block in solution': undefined method `<' for [3, 3, 1, 2, 4, 3]:Array (NoMethodError)
	from user.rb:4:in `times'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:11:57 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (a.size - 1).times do |index|
        result = a[0] + a[index]
        smallest_result = result if result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

WRONG ANSWER
got 4 expected 1

0.030 s

WRONG ANSWER, got 4 expected 1

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 4

Code: 23:12:46 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (a.size - 1).times do |index|
        result = (a[0] + a[index]).abs
        smallest_result = result if result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

WRONG ANSWER
got 4 expected 1

0.030 s

WRONG ANSWER, got 4 expected 1

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 4

Code: 23:13:14 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).times do |index|
        result = (a[0] + a[index]).abs
        smallest_result = result if result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:4:in `solution': undefined method `times' for 0..4:Range (NoMethodError)
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:4:in `solution': undefined method `times' for 0..4:Range (NoMethodError)
	from user.rb:110:in `<main>'

Code: 23:13:29 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        result = (a[0] + a[index]).abs
        smallest_result = result if result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

WRONG ANSWER
got 4 expected 1

0.030 s

WRONG ANSWER, got 4 expected 1

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 4

Code: 23:14:26 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        result = (a[0]..a[index]).reduce(:+)
        smallest_result = result if result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:6:in `block in solution': undefined method `<' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:6:in `block in solution': undefined method `<' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:18:53 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        iteration_result = ((a[0]..a[index]).reduce(:+) - (a[index]..a[a.size-1]).reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:19:28 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        iteration_result = (((a[0]..a[index]).reduce(:+)} - ((a[index]..a[a.size-1]).reduce(:+))).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5: syntax error, unexpected '}', expecting ')'
... (((a[0]..a[index]).reduce(:+)} - ((a[index]..a[a.size-1]).r...
...                               ^
user.rb:7: syntax error, unexpected keyword_end, expecting ')'
user.rb:111: syntax error, unexpected $end, expecting ')'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5: syntax error, unexpected '}', expecting ')'
... (((a[0]..a[index]).reduce(:+)} - ((a[index]..a[a.size-1]).r...
...                               ^
user.rb:7: syntax error, unexpected keyword_end, expecting ')'
user.rb:111: syntax error, unexpected $end, expecting ')'

Code: 23:20:22 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        iteration_result = ((a[0..index]).reduce(:+) - (a[index..a[a.size-1]]).reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `-': nil can't be coerced into Fixnum (TypeError)
	from user.rb:5:in `block in solution'
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `-': nil can't be coerced into Fixnum (TypeError)
	from user.rb:5:in `block in solution'
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:20:48 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        iteration_result = ((a[0..index]).reduce(:+) - (a[index..a.size-1]).reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

WRONG ANSWER
got 3 expected 1

0.030 s

WRONG ANSWER, got 3 expected 1

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 3

Code: 23:22:05 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        iteration_result = ((a[0..index]).reduce(:+) - (a[index+1..a.size-1]).reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `-': nil can't be coerced into Fixnum (TypeError)
	from user.rb:5:in `block in solution'
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `-': nil can't be coerced into Fixnum (TypeError)
	from user.rb:5:in `block in solution'
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:23:55 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        iteration_result = ((a[0,index]).reduce(:+) - (a[index+1,a.size-1]).reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:24:31 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        iteration_result = (a[0,index].reduce(:+) - a[index+1,a.size-1].reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:24:59 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size - 1).each do |index|
        iteration_result = a[0,index].reduce(:+) - a[index+1,a.size-1].reduce(:+)
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:27:39 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (1..a.size - 1).each do |index|
        iteration_result = a[0,index].reduce(:+) - a[index+1,a.size-1].reduce(:+)
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `-': nil can't be coerced into Fixnum (TypeError)
	from user.rb:5:in `block in solution'
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `-': nil can't be coerced into Fixnum (TypeError)
	from user.rb:5:in `block in solution'
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:28:19 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size).each do |index|
        iteration_result = a[0,index].reduce(:+) - a[index+1,a.size-1].reduce(:+)
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `-' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:30:59 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size-1).each do |index|
        iteration_result = a[0,index-1].reduce(:+) - a[index,a.size].reduce(:+)
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `reduce' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `reduce' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:31:30 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (0..a.size).each do |index|
        iteration_result = a[0,index-2].reduce(:+) - a[index-1,a.size].reduce(:+)
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `reduce' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `reduce' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:31:49 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    (1..a.size).each do |index|
        iteration_result = a[0,index-2].reduce(:+) - a[index-1,a.size].reduce(:+)
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `reduce' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:5:in `block in solution': undefined method `reduce' for nil:NilClass (NoMethodError)
	from user.rb:4:in `each'
	from user.rb:4:in `solution'
	from user.rb:110:in `<main>'

Code: 23:41:39 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    n = a.count
    p = 1..n-1
    p.each do |p|
        iteration_result = (a[0..p-1].reduce(:+) - a[p..p+1]).abs
        smallest_restul = result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:7:in `-': Array can't be coerced into Fixnum (TypeError)
	from user.rb:7:in `block in solution'
	from user.rb:6:in `each'
	from user.rb:6:in `solution'
	from user.rb:112:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:7:in `-': Array can't be coerced into Fixnum (TypeError)
	from user.rb:7:in `block in solution'
	from user.rb:6:in `each'
	from user.rb:6:in `solution'
	from user.rb:112:in `<main>'

Code: 23:42:01 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    n = a.count
    p = 1..n-1
    p.each do |p|
        iteration_result = (a[0..p-1].reduce(:+) - a[p..p+1].reduce(:+)).abs
        smallest_restul = result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:8:in `block in solution': undefined local variable or method `result' for main:Object (NameError)
	from user.rb:6:in `each'
	from user.rb:6:in `solution'
	from user.rb:112:in `<main>'

expand all User tests

▶

test_data0

✘

RUNTIME ERROR
tested program terminated unexpectedly

0.030 s

RUNTIME ERROR, tested program terminated unexpectedly

stdout:

user.rb:8:in `block in solution': undefined local variable or method `result' for main:Object (NameError)
	from user.rb:6:in `each'
	from user.rb:6:in `solution'
	from user.rb:112:in `<main>'

Code: 23:42:20 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    n = a.count
    p = 1..n-1
    p.each do |p|
        iteration_result = (a[0..p-1].reduce(:+) - a[p..p+1].reduce(:+)).abs
        smallest_restul = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

WRONG ANSWER
got 13 expected 1

0.030 s

WRONG ANSWER, got 13 expected 1

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 13

Code: 23:42:37 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    n = a.count
    p = 1..n-1
    p.each do |p|
        iteration_result = (a[0..p-1].reduce(:+) - a[p..p+1].reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

WRONG ANSWER
got 0 expected 1

0.030 s

WRONG ANSWER, got 0 expected 1

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 0

Code: 23:43:39 UTC, rb, verify, result: Failed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    n = a.count
    p = 1..n-1
    p.each do |i|
        iteration_result = (a[0..i-1].reduce(:+) - a[i..i+1].reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✘

WRONG ANSWER
got 0 expected 1

0.030 s

WRONG ANSWER, got 0 expected 1

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 0

Code: 23:46:08 UTC, rb, verify, result: Passed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    n = a.count
    p = 1..n-1
    p.each do |i|
        
        iteration_result = (a[0..i-1].reduce(:+) - a[i..n].reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✔

0.030 s

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 1

Code: 23:46:46 UTC, rb, verify, result: Passed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    n = a.count
    p = 1..n-1
    p.each do |p|
        iteration_result = (a[0..p-1].reduce(:+) - a[p..n].reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✔

0.030 s

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 1

Code: 23:47:00 UTC, rb, verify, result: Passed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    n = a.count
    p = 1..n-1
    p.each do |p|
        iteration_result = (a[0..p-1].reduce(:+) - a[p..n].reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis

expand all Example tests

▶

example
example test

✔

0.030 s

expand all User tests

▶

test_data0

✔

0.030 s

OK
function result: 1

Code: 23:47:04 UTC, rb, final, score: 8

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

def solution(a)
    # write your code in Ruby 1.9
    smallest_result = a.reduce(:+)
    n = a.count
    p = 1..n-1
    p.each do |p|
        iteration_result = (a[0..p-1].reduce(:+) - a[p..n].reduce(:+)).abs
        smallest_result = iteration_result if iteration_result < smallest_result
    end
    smallest_result
end

Analysis summary

The following issues have been detected: wrong answers, timeout errors.

Analysis

expand all Example tests

▶

example
example test

✔

0.030 s

expand all Assessment tests

▶

double
two elements

✘

WRONG ANSWER
got 0 expected 2000

0.030 s

WRONG ANSWER, got 0 expected 2000

▶

simple_positive
simple test with positive numbers, length = 5

✔

0.030 s

▶

simple_negative
simple test with negative numbers, length = 5

✘

WRONG ANSWER
got -27 expected 3

0.030 s

WRONG ANSWER, got -27 expected 3

▶

small_random
random small, length = 100

✘

WRONG ANSWER
got -12771 expected 39

0.030 s

WRONG ANSWER, got -12771 expected 39

▶

small_range
range sequence, length = ~1,000

✘

TIMEOUT ERROR
running time: >0.14 sec., time limit: 0.12 sec.

0.140 s

TIMEOUT ERROR, running time: >0.14 sec., time limit: 0.12 sec.

▶

small
small elements

✘

WRONG ANSWER
got 0 expected 20

0.030 s

WRONG ANSWER, got 0 expected 20

▶

medium_random1
random medium, numbers from 0 to 100, length = ~10,000

✘

TIMEOUT ERROR
running time: >1.02 sec., time limit: 0.16 sec.

1.020 s

TIMEOUT ERROR, running time: >1.02 sec., time limit: 0.16 sec.

▶

medium_random2
random medium, numbers from -1,000 to 50, length = ~10,000

✘

TIMEOUT ERROR
running time: >1.01 sec., time limit: 0.16 sec.

1.010 s

TIMEOUT ERROR, running time: >1.01 sec., time limit: 0.16 sec.

▶

large_ones
large sequence, numbers from -1 to 1, length = ~100,000

✘

TIMEOUT ERROR
running time: >1.02 sec., time limit: 0.80 sec.

1.020 s

TIMEOUT ERROR, running time: >1.02 sec., time limit: 0.80 sec.

▶

large_random
random large, length = ~100,000

✘

TIMEOUT ERROR
running time: >1.02 sec., time limit: 0.88 sec.

1.020 s

TIMEOUT ERROR, running time: >1.02 sec., time limit: 0.88 sec.

▶

large_sequence
large sequence, length = ~100,000

✘

TIMEOUT ERROR
running time: >1.02 sec., time limit: 0.44 sec.

1.020 s

TIMEOUT ERROR, running time: >1.02 sec., time limit: 0.44 sec.

▶

large_extreme
large test with maximal and minimal values, length = ~100,000

✘

TIMEOUT ERROR
running time: >1.03 sec., time limit: 0.84 sec.

1.030 s

TIMEOUT ERROR, running time: >1.03 sec., time limit: 0.84 sec.