Cody

# Problem 139. Determine if a Given Number is a Triangle Number

Solution 3289483

Submitted on 20 Oct 2020
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

### Test Suite

Test Status Code Input and Output
1   Fail
x = 1:100; y_correct = false(1,100); y_correct([1 3 6 10 15 21 28 36 45 55 66 78 91]) = true; assert(isequal(isTriangleNumber(x),y_correct))

Requested 2456367063x1 (18.3GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause MATLAB to become unresponsive. Error in isTriangleNumber (line 2) n = 1:4912734126/2; Error in Test1 (line 4) assert(isequal(isTriangleNumber(x),y_correct))

2   Fail
x = 1; y_correct = true; assert(isequal(isTriangleNumber(x),y_correct))

Requested 2456367063x1 (18.3GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause MATLAB to become unresponsive. Error in isTriangleNumber (line 2) n = 1:4912734126/2; Error in Test2 (line 3) assert(isequal(isTriangleNumber(x),y_correct))

3   Fail
x = [4912734125;4912734126]; y_correct = [false;true]; assert(isequal(isTriangleNumber(x),y_correct))

Requested 2456367063x1 (18.3GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause MATLAB to become unresponsive. Error in isTriangleNumber (line 2) n = 1:4912734126/2; Error in Test3 (line 3) assert(isequal(isTriangleNumber(x),y_correct))

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!