Submission

Score: 0

User: Prap

Problemset: ตรวจบัตรเครดิต

Language: cpp

Time: 0.000 second

Submitted On: 2025-09-25 13:45:59

#include <iostream>;
using namespace std;
int main() {
    int start[16] = {0};
    int i,sum,a,b,c;
    sum = 0;
    int box[15] = {0};
    cin>>start;
	for (i = 0; i<15; i++) {
		start[i] = box[i];
	}
	for (i = 0; i<15; i+=2) {
		box[i] = 2*box[i]
		if (box[i] ==10 ) {
			box[i] = 1
		}
		else if (box[i] ==12 ) {
			box[i] = 3
		}
		else if (box[i] ==14 ) {
			box[i] = 5
		}
		else if (box[i] ==16 ) {
			box[i] = 7
		}
		else if (box[i] ==18 ) {
			box[i] = 9
		}
	}
	for (i = 0; i<15; i+=2) {
		sum = box[i] + sum
	}
	a = sum%10;
	b = 10-a;
	c = b%10;
	if (c==start[16]) {
		cout<<"yes";
	}
	else {
		cout<<"no";
	}
	return 0;
}