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#include <iostream> using namespace std; void printArray(int arr[], int n){ for(int i=0;i<n;i++){ cout << arr[i] << " "; } cout << endl; return; } void swap(int *x, int *y){ long int t; t=*x; *x=*y; *y=t; } void sort(int *a,int n){ long int p=n-1,i; while (p>=0){ for(i=0;i<=(p-1);++i){ if (a[i]<=a[i+1]) swap(&a[i],&a[i+1]); else continue; } p--; } } void permute(int *array,int i,int length){ if(length == i){ printArray(array,length); return; } int j = i; for(j=i;j<length;j++){ swap(array+i,array+j); permute(array,i+1,length); swap(array+i,array+j); } return; } int main(){ int arr[] = {1, 2, 3, 4, 5}; int n = 5; permute(arr, 0, n); return 0; }
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