Question

Write a program to generate all combinations of 1, 2 and 3 usingfor loop.

Answer 1

C program for generating all combinations of 1, 2 and 3

#include<stdio.h>

int comb(int a,int b,int c)/*defining function with parameters a,b and c of int type*/

{

for (a=1; a<4; a++)   //loop for the first integer

   {

   for (b=1;b<4; b++) //loop for the second integer        

        {

          for (c=1; c<4; c++) //loop for the third integer                

               printf("One of the combination is \n%d %d %d", a, b, c);

         }

   }

return 0;

}

int main()//driver function

{

int a, b, c;

printf("Combinations are-");

comb(a,b,c);//calling function

return 0;

}

Output

Combinations are-

One of the combination is 1 1 1

One of the combination is 1 1 2

One of the combination is 1 1 3

One of the combination is 1 2 1

One of the combination is 1 2 2

One of the combination is 1 2 3

One of the combination is 1 3 1

One of the combination is 1 3 2

One of the combination is 1 3 3

One of the combination is 2 1 1

One of the combination is 2 1 2

One of the combination is 2 1 3

One of the combination is 2 2 1

One of the combination is 2 2 2

One of the combination is 2 2 3

One of the combination is 2 3 1

One of the combination is 2 3 2

One of the combination is 2 3 3

One of the combination is 3 1 1

One of the combination is 3 1 2

One of the combination is 3 1 3

One of the combination is 3 2 1

One of the combination is 3 2 2

One of the combination is 3 2 3

One of the combination is 3 3 1

One of the combination is 3 3 2

One of the combination is 3 3 3