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Search in a row-column sorted Matrix
Medium Accuracy: 52.29% Submissions: 13909 Points: 4

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

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