1 #include "iostream" 2 #include "vector" 3 using namespace std; 4  5 void print(vector
     
      Array) 6 { 7     int i; 8     for(i=0;i
      

&Array,int i,int j)16 {17 int temp;18 temp = Array[i];19 Array[i] = Array[j];20 Array[j] = temp;21 }22 23 void backtrack(int i,vector

Array)24 {25 if(i>=Array.size())26 {27 print(Array);28 }29 for(int j=i;j