CODEWITHSUNDEEP
matrix
CR28
CR28

Reputation: 31

Rotating matrix 90 degrees left side in c++ example code

I tried using this code but I'm unable to get the required output. I gave a 3*3 matrix as input 1 2 3|4 5 6| 7 8 9 and resultant matrix expected is 7 4 1 | 8 5 6 | 9 6 3 .

#include <bits/stdc++.h>
using namespace std;

int main(){
int size;
cin>>size;
int matrix[size][size];
for(int i=0;i<size;i++){
    for(int j=0;j<size;j++){
        cin>>matrix[i][j];
    }
}
cout<<"Original Matrix"<<endl;
for(int i=0;i<size;i++){
    for(int j=0;j<size;j++){
        cout<<matrix[i][j]<<" ";
    }
    cout<<endl;
}
cout<<"After left rotating"<<endl;
int tempMatrix[size][size];
for(int i=0;i<size;i++){
    for(int j=0;j<size;j++){
        tempMatrix[i][j]=matrix[j][i];
    }
}
for(int i=0;i<size;i++){
    for(int j=0;j<size;j++){
        cout<<tempMatrix[i][j]<<" ";
    }
    cout<<endl;
}
return 0;

}

Upvotes: 1

Views: 45

Answers (1)

Bharadwaj Nadiminti
Bharadwaj Nadiminti

Reputation: 21

    #include <bits/stdc++.h>
    using namespace std;
    
    int main()
    {
        int size;
        cin>>size;
        int matrix[size][size];
        for(int i=0;i<size;i++)
        {
            for(int j=0;j<size;j++)
            {
                cin>>matrix[i][j];
            }
        }
        cout<<"Original Matrix"<<endl;
        for(int i=0;i<size;i++)
        {
            for(int j=0;j<size;j++)
            {
                cout<<matrix[i][j]<<" ";
            }
            cout<<endl;
        }
        cout<<"After left rotating"<<endl;
        int tempMatrix[size][size];
        for(int i=0;i<size;i++)
        {
            for(int j=0;j<size;j++)
            {
                tempMatrix[i][j]=matrix[size-j-1][i];
            }
        }
        for(int i=0;i<size;i++)
        {
            for(int j=0;j<size;j++)
            {
                cout<<tempMatrix[i][j]<<" ";
            }
            cout<<endl;
        }
        return 0;
    }

Hope this works. Thanks.

Upvotes: 2

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