Nesting of Loops
The way if statements can be nested, similarly whiles and fors can also be nested. To understand how nested loops work, look at the program given below:
#include<stdio.h>
int main( )
{
int r, c, sum ;
for ( r = 1 ; r <= 3 ; r++ ) /* outer loop */
{
for ( c = 1 ; c <= 2 ; c++ ) /* inner loop */
{
sum = r + c ;
printf ( "r = %d c = %d sum = %d\n", r, c, sum ) ;
}
}
getchar();
return 0;
}
