Nested for Loop

It is possible to nest one for loop inside another. To demonstrate this structure, we'll concoct a program that will print the multiplication table:


included files
void main()
{
 int cols,rows;
 for(row=1;rows<13;rows++)   /*outer loop*/
  {
   for(cols=1;cols<13;cols++) /*inner loop*/
   printf("%3d",cols*rows);
   printf("\n");
  }
 getch();
}


The output will be:
1   2   3   4   5    6   7    8   9    10   11    12
2   4   6   8.....................................24
.   .   .  .....................................  36
.   .   .  .....................................  48
.   .   .  .....................................  60
.   .   .  .......................................72
.   .   .  .......................................84
.   .   .  ........................................
12  24  36  48 60   72  84   96  108  120   132  144




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