2. Identify the individual numbers

#include <bits/stdc++.h>

using namespace std;

int main()
{
    // please write your code here
    int result = 0;
    int input;
    while(cin >> input){
        result = result^input;
    }
    cout << result << endl;
    return 0;
}

 

#include <bits / STDC ++ H.> the using namespace STD; int main () 
{ // Please Write your code here Wallpaper
     // data defining int COUNT = 0 ; // array of effective length int * Inter = new new int [ 20 is ];
     / / Get data int A = 0 ;
     int I = 0 ;
     the while (CIN >> A) 
    { 
        Inter [I ++] = A; 
        COUNT ++ ; 
    } ///

 


    
    
     
    
    

    / Find the integer array of different numbers 
    for ( int I = 0 ; I <COUNT; I ++ ) 
    { 
        for ( int J = 0 ; J <COUNT; J ++ ) 
        { 
            IF (! I = J) 
            { 
                // find the same flew back to the same element to find a value of inter 
                IF (inter [I] == inter [J])
                     BREAK ; 

                // find the last did not find 
                the else  IF (COUNT == J - . 1 ) 
                { 
                    COUT << inter [I ] << endl; 
                } 

            }
            // The last one is different from 
            the else  IF (I == J == I && COUNT - . 1 ) 
            { 
                COUT << Inter [I] << endl; 
            } 
        } 
    } 

    return  0 ; 
}