Description
Given an N x N matrix, write a program to change the given matrix to transpose of the matrix.
NB: Try without an extra matrix.
Sample input :
3
1 2 3
4 5 6
7 8 9
Sample output:
1 4 7
2 5 8
3 6 9
C Program
#include <stdio.h>
int main()
{
int n;
scanf("%d",&n);
int mat[n][n];
for(int i = 0 ; i<n ; i++){
for(int j = 0 ; j<n ; j++){
scanf("%d",&mat[i][j]) ;
}
}
int temp;
for(int i = 0 ; i<n ; i++){
for(int j = 0 ; j<(n/2) ; j++){
temp = mat[i][j];
mat[i][j] = mat[j][i];
mat[j][i] = temp;
}
}
for(int i = 0 ; i<n ; i++){
for(int j = 0 ; j<n ; j++){
printf("%d ",mat[i][j]) ;
}
printf("\n");
}
return 0;
}
C++ Program
#include <bits/stdc++.h>
using namespace std;
int main()
{
int n;
cin>>n;
int mat[n][n];
for(int i = 0 ; i<n ; i++){
for(int j = 0 ; j<n ; j++){
cin>>mat[i][j];
}
}
int temp;
for(int i = 0 ; i<n ; i++){
for(int j = 0 ; j<(n/2) ; j++){
temp = mat[i][j];
mat[i][j] = mat[j][i];
mat[j][i] = temp;
}
}
for(int i = 0 ; i<n ; i++){
for(int j = 0 ; j<n ; j++){
cout<<mat[i][j]<<" ";
}
cout<<"\n";
}
return 0;
}
JAVA Program
import java.util.*;
import java.lang.*;
import java.io.*;
class Main
{
public static void main (String[] args) throws java.lang.Exception
{
Scanner sc=new Scanner(System.in);
int n = sc.nextInt();
int mat[][] = new int[n][n];
for(int i = 0 ; i<n ; i++){
for(int j = 0 ; j<n ; j++){
mat[i][j] = sc.nextInt();
}
}
int temp;
for(int i = 0 ; i<n ; i++){
for(int j = 0 ; j<(n/2) ; j++){
temp = mat[i][j];
mat[i][j] = mat[j][i];
mat[j][i] = temp;
}
}
for(int i = 0 ; i<n ; i++){
for(int j = 0 ; j<n ; j++){
System.out.print(mat[i][j] + " ");
}
System.out.println();
}
}
}
PYTHON Program
m = [[1,2,3],[4,5,6],[7,8,9]]
rez = [[m[j][i] for j in range(len(m))] for i in range(len(m[0]))]
for row in rez:
print(row)
