1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

string dodaj(string a, string b)
{
    string w;
    int amp = 0;
    if (a.size() < b.size())
        swap(a,b);

    for (int i = 0; i < b.size(); i++)
    {
        w += char(a[a.size() - 1 - i] + b[b.size() - 1 - i] - '0' + amp);
        if (w[i] > '9')
        {
           // cout << "aaaa";
            w[i] = w[i] - 10;
            amp = 1;
        }
        else
        {
            amp = 0;
        }
    }
    for (int i = b.size(); i < a.size(); i++)
    {
        w += char(a[a.size() - 1 - i] + amp);
        if (w[i] > '9')
        {

             w[i] = w[i] - 10;
            amp = 1;
        }
        else
        {
            amp = 0;
        }
    }
if (amp == 1)
    w+= "1";
reverse(w.begin(),w.end());

    return w;
}
int main()
{
    string a, b;
    cin >> a >> b;
    cout << dodaj(a,b);
    return 0;
}