Envío 6116

Código

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); 
    // your code goes here
    string X, Y;
    cin >> X;
    cin >> Y;

    if(X.size() > Y.size())
        swap(X, Y);

    int i = X.size(), j = Y.size(), c = 0;
    char arr[j];
    char ch;
    while(i-- && j--){
        ch = X[i] + Y[j] + c - 48;
        if(ch > 57){
            ch = 47 + (ch - 57);
            c = 1;
        }else{
            c = 0;
        }
        arr[j] = ch;
    }

    while(j--){
        ch = Y[j] + c;
        if(ch > 57){
            ch = 47 + (ch - 57);
            c = 1;
        }else{
            c = 0;
        }
        arr[j] = ch;
    }

    if(c) cout << '1';
    for(i=0; i<Y.size(); i++)
        cout << arr[i];
    cout << "\n";
	return 0;
}