There are N frogs in a line. Initially, frog i is at position i and has a weight W[i]. If you hit a frog i, it jumps L[i] units to its right. Find the minimum number of hits required to arrange the ...
You are given a binary string S of length N consisting of '0's and '1's. In one operation, you can choose any substring of S and reverse it. The goal is to determine the minimum number of operations ...
Thinking about getting good at competitive programming, especially on a platform like CodeChef? It can seem like a big hill to climb at first, but honestly, it’s totally doable. This guide breaks down ...