Rotate n x n Matrix

#include <stdio.h>

void main() {

int m[100][100];

int i, j, s;

printf("\nEnter square matrix size : ");

scanf("%d", &s);

for(j=0;j<s; j ++)

{

for(j=0;j<s; j ++)

{

printf("\nEnter element : ");

scanf("%d",&m[i][j]);

}

}

printf("\n----Current Matrix----\n\n");

for(i=0;i<s;i++)

{

for(j=0;j<s;j++)

{

printf(" %d",m[i][j]);

}

printf("\n");

}

printf("\n----Matrix After 90 Degree Clockwise Rotation----\n\n");

for(i=0;i<s;i++)

{

for(j=s-1;j>=0;j--)

{

printf(" %d",m[j][i]);

}

printf("\n");

}

printf("\n----Matrix After 90 Degree Anti-clockwise Rotation----\n\n");

for(i=s-1;i>=0;i--)

{

for(j=0;j<s;j++)

{

printf(" %d",m[j][i]);

}

printf("\n");

}

printf("\n----Matrix After 180 Degree Rotation----\n\n");

for(i=s-1;i>=0;i--)

{

for(j=s-1;j>=0;j--)

{

printf(" %d ",m[i][j]);

}

printf("\n");

}

}