how can this be a valid solution?
Code can be made even smaller by replacing 'ans' in line 3 directly with line 2.
Determine whether a vector is monotonically increasing
Similar Triangles - find the height of the tree
Sum of diagonal of a square matrix
2倍してみよう - ここからスタート！
Binary code (array)
How many days?!?
A (wrong) place for everything, and everything in its (wrong) place
Highest powers in factorials
The Hills Are Alive...
Sums of Distinct Powers
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