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  1. #include <iostream>
  2. using namespace std;
  3. #define lli long long int
  4. lli convertbtod(int n){
  5.     lli j = 0,ans=0;
  6.     while(n>0){
  7.         lli last = n%10;
  8.         ans += (last<<j);
  9.         j++;
  10.         n /= 10;
  11.     }
  12.     return ans; 
  13. }
  14. lli convertdtob(int n){
  15.     int ans=0,p = 1;
  16.     while (n>0){
  17.         ans += p*(n&1);
  18.         p*=10;
  19.         n = n>>1;
  20.     }
  21.     return ans;
  22. }
  23. int main() {
  24.     lli t;
  25.     cin >> t;
  26.     while (t--){
  27.         lli n1,n2,ans = 0,j=0;
  28.         cin >> n1 >> n2;
  29.         n1 = convertbtod(n1);
  30.         n2 = convertbtod(n2);
  31.         while (n1>0 || n2>0){
  32.             int l1 = n1&1;
  33.             int l2 = n2&1;
  34.             if (l1^l2){
  35.                 ans = ans|(1<<j);
  36.             }
  37.             j++;
  38.             n1 = n1>>1;
  39.             n2 = n2>>1;
  40.         }
  41.         cout << convertdtob(ans) << endl;
  42.     }
  43.     return 0;    
  44. }
  45.  
Success #stdin #stdout 0s 4880KB
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https://ideone.com/NmV4QA
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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