for(initialization,condition;increment/decrement)
{
for(initialization,condition;increment/decrement)
{
statement(s);
}
statement(s);
}#include <stdio.h>
int main()
{
for (int i=0; i<2; i++)
{
for (int j=0; j<4; j++)
{
printf("%d, %d\n",i ,j);
}
}
return 0;
}
0, 0 0, 1 0, 2 0, 3 1, 0 1, 1 1, 2 1, 3