Difficulty Levels

Choose your challenge. Start easy and work your way up.

215
Total Problems

Top-left to Bottom-Right Diagonals Program In Python

Print all top-left to bottom-right diagonals from the top-right corner of a given RxC matrix

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442

Check Sorted Order

Given an array sorted except for one element, find the first element that when reversed makes the entire array sorted

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438

Alternate Lower Case & Upper Case

Print the first N lowercase and N uppercase alphabets from a string alternately

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432

Python Program To Check Combo Sum

Count the number of combinations (1 or more integers) from a list that add up to a given target sum S

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437

S1 Contains S2 In Python

Determine if the characters of string S2 appear in the same relative order within string S1

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446

Form String by Rotation

Determine if one string can be obtained by rotating another string

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442

Infinite Sequence Nth Digit

Find the Nth digit in the infinite sequence formed by concatenating positive integers starting from 1.

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437

Python Program To Check Triplet Sum

Count the number of unique triplets in an array that sum to a given target value S.

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445

Swap Integers – Equal Sum Matrices

Determine if swapping corresponding elements between two matrices can equalize their sums

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455

Relatives Meeting

Count the number of relatives in the same group as a given person based on relationship pairs

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433

Team Formation

Find the maximum number of perfect teams that can be formed with at least one coder, one mathematician, and exactly three members

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461

Increase By Adjacent Difference

Increment each number by the absolute difference between its adjacent cells, treating missing neighbors as zero.

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434
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