题解 | #矩阵元素查找#

class Solution {
public:

    vector<int> findElement(vector<vector<int> >& mat, int n, int m, int x) {        
    vector<int> res(2);
    for (int i = 0; i < n; i++) {
      if(mat[i][0] <= x && mat[i][m -1] >= x){
           for(int j = 0; j < m; j++){
            if(mat[i][j] == x){
                res[0] = i;
                res[1] = j;
                return res;
            }
           }
      }
    }
        
      
      return res;      
   
}
    
};