Submission

Score: 100

User: loop

Problemset: ปฏิทินวันแม่

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-10 18:30:10

#include <iostream>
using namespace std;

int main() {
    int days[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    int m, d;
    cin >> m >> d;
    int first = 1;                       // day of the year of the 1st of month m
    for (int i = 1; i < m; i++) first += days[i];
    int mom = 12;                        // day of the year of 12 August
    for (int i = 1; i < 8; i++) mom += days[i];
    int diff = ((mom - first) % 7 + 7) % 7;
    cout << (d - 1 + diff) % 7 + 1 << '\n';
    return 0;
}