Submission

Score: 0

User: purihorharin

Problemset: บาร์โค้ด

Language: c

Time: 0.001 second

Submitted On: 2026-03-20 17:04:18

#include <stdio.h>

int main () {
    char buf[13];
    fread(buf, 1, 13, stdin);
    int sum = 0;
    for (int i = 0; i < 12; i++) {
        if (i & 1) sum += (buf[i] - '0') * 3;
        else       sum += buf[i] - '0';
    }
    if ((sum + 8) % 10 == 0) {
        fwrite("YES", 1, 3, stdout);
    } else {
        fwrite("NO", 1, 2, stdout);
    }
}