FazeelUsmani / Amazon-SDE-Preparation

This repository includes all the interview preparation questions for Amazon SDE role
https://practice.geeksforgeeks.org/batch/Amazon-Test-Series
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04 Matrix -> 05 Search in a row-column sorted matrix #22

Open FazeelUsmani opened 3 years ago

FazeelUsmani commented 3 years ago
  1. Search in a row-column sorted Matrix Easy Accuracy: 59.73% Submissions: 8056 Points: 2 Given a matrix of size n x m, where every row and column is sorted in increasing order, and a number x. Find whether element x is present in the matrix or not.

Example 1:

Input: n = 3, m = 3, x = 62 matrix[][] = {{ 3, 30, 38}, {36, 43, 60}, {40, 51, 69}} Output: 0 Explanation: 62 is not present in the matrix, so output is 0. Example 2:

Input: n = 1, m = 6, x = 55 matrix[][] = {{18, 21, 27, 38, 55, 67}} Output: 1 Explanation: 55 is present in the matrix.

Your Task: You don't need to read input or print anything. Complete the function search() that takes n, m, x, and matrix[][] as input parameters and returns a boolean value. True if x is present in the matrix and false if it is not present.

Expected Time Complexity: O(N + M) Expected Auxiliary Space: O(1)

Constraints: 1 <= N, M <= 1000 1 <= mat[][] <= 105 1 <= X <= 1000