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  1. #include<iostream>
  2. #include<string>
  3. #include<algorithm>
  4. #include<cmath>
  5. using namespace std;
  6. int toNumber(string s){
  7. int num = 0;
  8. int n = s.length();
  9. for (int i = 0; i < n; i++) {
  10. num = num * 10 + (s[i] - '0');
  11. }
  12. return num;
  13. }
  14. int main(){
  15. int t ; cin >> t;
  16. while(t--){
  17. string s1 , s2 ; cin >> s1 >> s2;
  18. reverse(s1.begin(),s1.end());
  19. reverse(s2.begin(),s2.end());
  20. int sum = toNumber(s1) + toNumber(s2);
  21. string sum_string = to_string(sum);
  22. reverse(sum_string.begin(),sum_string.end());
  23. cout << toNumber(sum_string) << endl;
  24. }
  25.  
  26. }
Success #stdin #stdout 0.02s 5292KB
stdin
Standard input is empty
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