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Solved Problem - Merge K Sorted Arrays

Explore how to merge K sorted arrays by using a min-heap data structure which efficiently finds the minimal elements across arrays. Understand the process and code implementation that achieve a time complexity of O(N*K*logK). This lesson prepares you to handle similar heap-based problems in competitive programming.

Problem statement

Given KK sorted arrays of length NN. Print the sorted set of NKN*K integers after merging the arrays.

Input format

The first line of input consists of two space-separated integers K(1K103)K(1 \leq K \leq 10^{3}) and N(1N103)N(1 \leq N \leq 10^{3}) ...