class Solution { public: //Function to search a given number in row-column sorted matrix. bool search(vector<vector<int> > matrix, int n, int m, int x) { int long long i=0,j=m-1; while(i<n && j>=0&& j<n&&i>=0) { if(matrix[i][j]==x) return 1; else if(matrix[i][j]>=x) j--; else i++; } return 0; } };
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