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Strings are fundamental data structures that store sequences of characters. In C++, strings are zero-indexed and their length can be obtained using len = s.size(). Strings can also be implemented as character arrays with len = strlen(s). Basic String Operations Insretion C++ strings support various insertion methods: string s = "abcd" ...

Problem 1: Equalizing Elements via Modulo Problem Statement Given an array of integers, determine if it is possible to make all elements equal by repeatedly applying a modulo operation with an integer $x \ge 2$. In each step, every element $a_i$ is replaced by $a_i \bmod x$. Analysis The core constraint lies in the behavior of small numbers und ...

This analysis addresses the problem of decomposing a string into the minimum number of substrings such that none of the substrings are "cyclic" (periodic). A string is considered cyclic if it can be constructed by repeating a smaller substring multiple times. Given a string S of length N, we must deetrmine the minimum number of partit ...