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  1. #include<iostream>
  2. #include<algorithm>
  3. using namespace std;
  4.  
  5. void perm(char a[],int size,int k){
  6.     if(size == k)
  7.        puts(a);
  8.     else
  9.        {
  10.          for(int i = k; i < size; ++i){
  11.              swap(a[k],a[i]);
  12.              perm(a,size,k+1);
  13.              swap(a[k],a[i]);
  14.          }
  15.        }
  16. }
  17.  
  18. int main(){
  19.     char str[] = "789";
  20.     int size = sizeof(str)/sizeof(char)-1;
  21.     perm(str,size,0);
  22.     return 0;
  23. }
  24.  
  25.  
Success #stdin #stdout 0.02s 2724KB
comments (?)
stdin
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Standard input is empty
stdout
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789
798
879
897
987
978
https://ideone.com/bTCJyV
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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