#include<iostream> #include<string> #include<algorithm> #include<cmath> using namespace std; int toNumber(string s){ int num = 0; int n = s.length(); for (int i = 0; i < n; i++) { num = num * 10 + (s[i] - '0'); } return num; } int main(){ int t ; cin >> t; while(t--){ string s1 , s2 ; cin >> s1 >> s2; reverse(s1.begin(),s1.end()); reverse(s2.begin(),s2.end()); int sum = toNumber(s1) + toNumber(s2); string sum_string = to_string(sum); reverse(sum_string.begin(),sum_string.end()); cout << toNumber(sum_string) << endl; } }
Standard input is empty
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