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How to generate all permutations of 3 digits without repetition in C

1 Answer

0 votes
#include <stdio.h>
 
int main(void) {

    for (int i = 0; i <= 9; i++) {  
        for (int j = 0; j <= 9; j++) {  
            for (int k = 0; k <= 9; k++) {  
                if (i != j && i != k && j != k)  
                    printf("%d %d %d | ", i, j, k);  
            }  
            printf("\n");
        }  
    }  
     
    return 0;
}
 
 
 
   
/*
run:
   
0 1 2 | 0 1 3 | 0 1 4 | 0 1 5 | 0 1 6 | 0 1 7 | 0 1 8 | 0 1 9 | 
0 2 1 | 0 2 3 | 0 2 4 | 0 2 5 | 0 2 6 | 0 2 7 | 0 2 8 | 0 2 9 | 
0 3 1 | 0 3 2 | 0 3 4 | 0 3 5 | 0 3 6 | 0 3 7 | 0 3 8 | 0 3 9 | 
0 4 1 | 0 4 2 | 0 4 3 | 0 4 5 | 0 4 6 | 0 4 7 | 0 4 8 | 0 4 9 | 
0 5 1 | 0 5 2 | 0 5 3 | 0 5 4 | 0 5 6 | 0 5 7 | 0 5 8 | 0 5 9 | 
0 6 1 | 0 6 2 | 0 6 3 | 0 6 4 | 0 6 5 | 0 6 7 | 0 6 8 | 0 6 9 | 
0 7 1 | 0 7 2 | 0 7 3 | 0 7 4 | 0 7 5 | 0 7 6 | 0 7 8 | 0 7 9 | 
0 8 1 | 0 8 2 | 0 8 3 | 0 8 4 | 0 8 5 | 0 8 6 | 0 8 7 | 0 8 9 | 
0 9 1 | 0 9 2 | 0 9 3 | 0 9 4 | 0 9 5 | 0 9 6 | 0 9 7 | 0 9 8 | 
1 0 2 | 1 0 3 | 1 0 4 | 1 0 5 | 1 0 6 | 1 0 7 | 1 0 8 | 1 0 9 | 

1 2 0 | 1 2 3 | 1 2 4 | 1 2 5 | 1 2 6 | 1 2 7 | 1 2 8 | 1 2 9 | 
1 3 0 | 1 3 2 | 1 3 4 | 1 3 5 | 1 3 6 | 1 3 7 | 1 3 8 | 1 3 9 | 
1 4 0 | 1 4 2 | 1 4 3 | 1 4 5 | 1 4 6 | 1 4 7 | 1 4 8 | 1 4 9 | 
1 5 0 | 1 5 2 | 1 5 3 | 1 5 4 | 1 5 6 | 1 5 7 | 1 5 8 | 1 5 9 | 
1 6 0 | 1 6 2 | 1 6 3 | 1 6 4 | 1 6 5 | 1 6 7 | 1 6 8 | 1 6 9 | 
1 7 0 | 1 7 2 | 1 7 3 | 1 7 4 | 1 7 5 | 1 7 6 | 1 7 8 | 1 7 9 | 
1 8 0 | 1 8 2 | 1 8 3 | 1 8 4 | 1 8 5 | 1 8 6 | 1 8 7 | 1 8 9 | 
1 9 0 | 1 9 2 | 1 9 3 | 1 9 4 | 1 9 5 | 1 9 6 | 1 9 7 | 1 9 8 | 
2 0 1 | 2 0 3 | 2 0 4 | 2 0 5 | 2 0 6 | 2 0 7 | 2 0 8 | 2 0 9 | 
2 1 0 | 2 1 3 | 2 1 4 | 2 1 5 | 2 1 6 | 2 1 7 | 2 1 8 | 2 1 9 | 

2 3 0 | 2 3 1 | 2 3 4 | 2 3 5 | 2 3 6 | 2 3 7 | 2 3 8 | 2 3 9 | 
2 4 0 | 2 4 1 | 2 4 3 | 2 4 5 | 2 4 6 | 2 4 7 | 2 4 8 | 2 4 9 | 
2 5 0 | 2 5 1 | 2 5 3 | 2 5 4 | 2 5 6 | 2 5 7 | 2 5 8 | 2 5 9 | 
2 6 0 | 2 6 1 | 2 6 3 | 2 6 4 | 2 6 5 | 2 6 7 | 2 6 8 | 2 6 9 | 
2 7 0 | 2 7 1 | 2 7 3 | 2 7 4 | 2 7 5 | 2 7 6 | 2 7 8 | 2 7 9 | 
2 8 0 | 2 8 1 | 2 8 3 | 2 8 4 | 2 8 5 | 2 8 6 | 2 8 7 | 2 8 9 | 
2 9 0 | 2 9 1 | 2 9 3 | 2 9 4 | 2 9 5 | 2 9 6 | 2 9 7 | 2 9 8 | 
3 0 1 | 3 0 2 | 3 0 4 | 3 0 5 | 3 0 6 | 3 0 7 | 3 0 8 | 3 0 9 | 
3 1 0 | 3 1 2 | 3 1 4 | 3 1 5 | 3 1 6 | 3 1 7 | 3 1 8 | 3 1 9 | 
3 2 0 | 3 2 1 | 3 2 4 | 3 2 5 | 3 2 6 | 3 2 7 | 3 2 8 | 3 2 9 | 

3 4 0 | 3 4 1 | 3 4 2 | 3 4 5 | 3 4 6 | 3 4 7 | 3 4 8 | 3 4 9 | 
3 5 0 | 3 5 1 | 3 5 2 | 3 5 4 | 3 5 6 | 3 5 7 | 3 5 8 | 3 5 9 | 
3 6 0 | 3 6 1 | 3 6 2 | 3 6 4 | 3 6 5 | 3 6 7 | 3 6 8 | 3 6 9 | 
3 7 0 | 3 7 1 | 3 7 2 | 3 7 4 | 3 7 5 | 3 7 6 | 3 7 8 | 3 7 9 | 
3 8 0 | 3 8 1 | 3 8 2 | 3 8 4 | 3 8 5 | 3 8 6 | 3 8 7 | 3 8 9 | 
3 9 0 | 3 9 1 | 3 9 2 | 3 9 4 | 3 9 5 | 3 9 6 | 3 9 7 | 3 9 8 | 
4 0 1 | 4 0 2 | 4 0 3 | 4 0 5 | 4 0 6 | 4 0 7 | 4 0 8 | 4 0 9 | 
4 1 0 | 4 1 2 | 4 1 3 | 4 1 5 | 4 1 6 | 4 1 7 | 4 1 8 | 4 1 9 | 
4 2 0 | 4 2 1 | 4 2 3 | 4 2 5 | 4 2 6 | 4 2 7 | 4 2 8 | 4 2 9 | 
4 3 0 | 4 3 1 | 4 3 2 | 4 3 5 | 4 3 6 | 4 3 7 | 4 3 8 | 4 3 9 | 

4 5 0 | 4 5 1 | 4 5 2 | 4 5 3 | 4 5 6 | 4 5 7 | 4 5 8 | 4 5 9 | 
4 6 0 | 4 6 1 | 4 6 2 | 4 6 3 | 4 6 5 | 4 6 7 | 4 6 8 | 4 6 9 | 
4 7 0 | 4 7 1 | 4 7 2 | 4 7 3 | 4 7 5 | 4 7 6 | 4 7 8 | 4 7 9 | 
4 8 0 | 4 8 1 | 4 8 2 | 4 8 3 | 4 8 5 | 4 8 6 | 4 8 7 | 4 8 9 | 
4 9 0 | 4 9 1 | 4 9 2 | 4 9 3 | 4 9 5 | 4 9 6 | 4 9 7 | 4 9 8 | 
5 0 1 | 5 0 2 | 5 0 3 | 5 0 4 | 5 0 6 | 5 0 7 | 5 0 8 | 5 0 9 | 
5 1 0 | 5 1 2 | 5 1 3 | 5 1 4 | 5 1 6 | 5 1 7 | 5 1 8 | 5 1 9 | 
5 2 0 | 5 2 1 | 5 2 3 | 5 2 4 | 5 2 6 | 5 2 7 | 5 2 8 | 5 2 9 | 
5 3 0 | 5 3 1 | 5 3 2 | 5 3 4 | 5 3 6 | 5 3 7 | 5 3 8 | 5 3 9 | 
5 4 0 | 5 4 1 | 5 4 2 | 5 4 3 | 5 4 6 | 5 4 7 | 5 4 8 | 5 4 9 | 

5 6 0 | 5 6 1 | 5 6 2 | 5 6 3 | 5 6 4 | 5 6 7 | 5 6 8 | 5 6 9 | 
5 7 0 | 5 7 1 | 5 7 2 | 5 7 3 | 5 7 4 | 5 7 6 | 5 7 8 | 5 7 9 | 
5 8 0 | 5 8 1 | 5 8 2 | 5 8 3 | 5 8 4 | 5 8 6 | 5 8 7 | 5 8 9 | 
5 9 0 | 5 9 1 | 5 9 2 | 5 9 3 | 5 9 4 | 5 9 6 | 5 9 7 | 5 9 8 | 
6 0 1 | 6 0 2 | 6 0 3 | 6 0 4 | 6 0 5 | 6 0 7 | 6 0 8 | 6 0 9 | 
6 1 0 | 6 1 2 | 6 1 3 | 6 1 4 | 6 1 5 | 6 1 7 | 6 1 8 | 6 1 9 | 
6 2 0 | 6 2 1 | 6 2 3 | 6 2 4 | 6 2 5 | 6 2 7 | 6 2 8 | 6 2 9 | 
6 3 0 | 6 3 1 | 6 3 2 | 6 3 4 | 6 3 5 | 6 3 7 | 6 3 8 | 6 3 9 | 
6 4 0 | 6 4 1 | 6 4 2 | 6 4 3 | 6 4 5 | 6 4 7 | 6 4 8 | 6 4 9 | 
6 5 0 | 6 5 1 | 6 5 2 | 6 5 3 | 6 5 4 | 6 5 7 | 6 5 8 | 6 5 9 | 

6 7 0 | 6 7 1 | 6 7 2 | 6 7 3 | 6 7 4 | 6 7 5 | 6 7 8 | 6 7 9 | 
6 8 0 | 6 8 1 | 6 8 2 | 6 8 3 | 6 8 4 | 6 8 5 | 6 8 7 | 6 8 9 | 
6 9 0 | 6 9 1 | 6 9 2 | 6 9 3 | 6 9 4 | 6 9 5 | 6 9 7 | 6 9 8 | 
7 0 1 | 7 0 2 | 7 0 3 | 7 0 4 | 7 0 5 | 7 0 6 | 7 0 8 | 7 0 9 | 
7 1 0 | 7 1 2 | 7 1 3 | 7 1 4 | 7 1 5 | 7 1 6 | 7 1 8 | 7 1 9 | 
7 2 0 | 7 2 1 | 7 2 3 | 7 2 4 | 7 2 5 | 7 2 6 | 7 2 8 | 7 2 9 | 
7 3 0 | 7 3 1 | 7 3 2 | 7 3 4 | 7 3 5 | 7 3 6 | 7 3 8 | 7 3 9 | 
7 4 0 | 7 4 1 | 7 4 2 | 7 4 3 | 7 4 5 | 7 4 6 | 7 4 8 | 7 4 9 | 
7 5 0 | 7 5 1 | 7 5 2 | 7 5 3 | 7 5 4 | 7 5 6 | 7 5 8 | 7 5 9 | 
7 6 0 | 7 6 1 | 7 6 2 | 7 6 3 | 7 6 4 | 7 6 5 | 7 6 8 | 7 6 9 | 

7 8 0 | 7 8 1 | 7 8 2 | 7 8 3 | 7 8 4 | 7 8 5 | 7 8 6 | 7 8 9 | 
7 9 0 | 7 9 1 | 7 9 2 | 7 9 3 | 7 9 4 | 7 9 5 | 7 9 6 | 7 9 8 | 
8 0 1 | 8 0 2 | 8 0 3 | 8 0 4 | 8 0 5 | 8 0 6 | 8 0 7 | 8 0 9 | 
8 1 0 | 8 1 2 | 8 1 3 | 8 1 4 | 8 1 5 | 8 1 6 | 8 1 7 | 8 1 9 | 
8 2 0 | 8 2 1 | 8 2 3 | 8 2 4 | 8 2 5 | 8 2 6 | 8 2 7 | 8 2 9 | 
8 3 0 | 8 3 1 | 8 3 2 | 8 3 4 | 8 3 5 | 8 3 6 | 8 3 7 | 8 3 9 | 
8 4 0 | 8 4 1 | 8 4 2 | 8 4 3 | 8 4 5 | 8 4 6 | 8 4 7 | 8 4 9 | 
8 5 0 | 8 5 1 | 8 5 2 | 8 5 3 | 8 5 4 | 8 5 6 | 8 5 7 | 8 5 9 | 
8 6 0 | 8 6 1 | 8 6 2 | 8 6 3 | 8 6 4 | 8 6 5 | 8 6 7 | 8 6 9 | 
8 7 0 | 8 7 1 | 8 7 2 | 8 7 3 | 8 7 4 | 8 7 5 | 8 7 6 | 8 7 9 | 

8 9 0 | 8 9 1 | 8 9 2 | 8 9 3 | 8 9 4 | 8 9 5 | 8 9 6 | 8 9 7 | 
9 0 1 | 9 0 2 | 9 0 3 | 9 0 4 | 9 0 5 | 9 0 6 | 9 0 7 | 9 0 8 | 
9 1 0 | 9 1 2 | 9 1 3 | 9 1 4 | 9 1 5 | 9 1 6 | 9 1 7 | 9 1 8 | 
9 2 0 | 9 2 1 | 9 2 3 | 9 2 4 | 9 2 5 | 9 2 6 | 9 2 7 | 9 2 8 | 
9 3 0 | 9 3 1 | 9 3 2 | 9 3 4 | 9 3 5 | 9 3 6 | 9 3 7 | 9 3 8 | 
9 4 0 | 9 4 1 | 9 4 2 | 9 4 3 | 9 4 5 | 9 4 6 | 9 4 7 | 9 4 8 | 
9 5 0 | 9 5 1 | 9 5 2 | 9 5 3 | 9 5 4 | 9 5 6 | 9 5 7 | 9 5 8 | 
9 6 0 | 9 6 1 | 9 6 2 | 9 6 3 | 9 6 4 | 9 6 5 | 9 6 7 | 9 6 8 | 
9 7 0 | 9 7 1 | 9 7 2 | 9 7 3 | 9 7 4 | 9 7 5 | 9 7 6 | 9 7 8 | 
9 8 0 | 9 8 1 | 9 8 2 | 9 8 3 | 9 8 4 | 9 8 5 | 9 8 6 | 9 8 7 |
 
*/

 



answered Sep 29, 2021 by avibootz
edited Sep 29, 2021 by avibootz
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