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

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

#include

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