Submission

Score: 48

User: Ricon

Problemset: บวกเลขฐาน

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-06 22:35:17

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

string decTo(int n, int base) {
    if (n == 0) return "0";
    string hexChars = "0123456789ABCDEF";
    string result = "";

    while (n > 0) {
        int rem = n % base;              // หาเศษ
        result = hexChars[rem] + result; // เติมข้างหน้า
        n /= base;                       // หารต่อ
    }
    return result;
}

int main() {
    int base, real1 = 0, real2 = 0;
    string num1, num2;
    cin >> base >> num1 >> num2;

    for (int i = 0; i < num1.length(); i++) {
        if (!isdigit(num1[i])) num1[i] -= 7;
        real1 += pow(base, num1.length()-i-1) * (int(num1[i]) - '0');
    }

    for (int i = 0; i < num2.length(); i++) {
        if (!isdigit(num1[i])) num1[i] -= 7;
        real2 += pow(base, num2.length()-i-1) * (int(num2[i]) - '0');
    }

    cout << decTo(real1+real2, base);

    return 0;
}