TASK_069 - AquaBlitz11's Solution

#include <cstdio>
#include <cstring>
#include <algorithm>

using namespace std;

const int N = 10010;
char a[N], b[N];
char sum[N];

int main()
{
    scanf("%s %s", a, b);
    reverse(a, a+strlen(a));
    reverse(b, b+strlen(b));

    int i = 0, carry = 0;
    while (a[i] || b[i] || carry) {
        if (!a[i]) a[i] = '0';
        if (!b[i]) b[i] = '0';
        int v = carry + (a[i]-'0') + (b[i]-'0');
        sum[i] = (v%10)+'0';
        carry = v/10;
        ++i;
    }

    reverse(sum, sum+i);
    printf("%s", sum);

    return 0;
}