Submission

Score: 96

User: letdown

Problemset: บวกเลขฐาน

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-06 16:11:29

#include <iostream>
#include <math.h>
#include <string.h>

using namespace std;
int main() {
    int b, lx, ly, s;
    string x,y,ans;
    cin>>b>>x>>y;

    int decx=0, decy=0;
    for (int i = 0; i < x.length(); i++) {
        int idx = x.length()-i-1, d;
        if (x[idx] <= '9') d = (x[idx] - '0');
        else d = (x[idx] - 'A' + 10);
        decx += d*pow(b, i);
    }
    for (int i = 0; i < y.length(); i++) {
        int idy = y.length()-i-1, d;
        if (y[idy] <= '9') d = (y[idy] - '0');
        else d = (y[idy] - 'A' + 10);
        decy += d*pow(b, i);
    }

    s = decx + decy;
    while (s > 0) {
        int d = s % b;
        s /= b;
        if (d <= 9) ans += char(d + '0');
        else ans += char(d + 'A' - 10);
    }

    for (int i = 0; i < ans.length()/2; i++) {
        char t = ans[i];
        ans[i] = ans[ans.length() - i - 1];
        ans[ans.length() - i - 1] = t;
    }
    cout << ans;
}