Transpose of a matrix and rotate te array in 90 degree clockwise

 class Solution {

public:

void rotate(vector<vector<int>>& matrix) {

int n=matrix.size();

int m=matrix[0].size();

for(int i=0;i<n;i++){

for(int j=0;j<m;j++){

if(i>j){

swap(matrix[i][j],matrix[j][i]);

}

}

}

for(int i=0;i<n;i++){

reverse(matrix[i].begin(),matrix[i].end());

}

}

};