Submission

[P-SSSSSSSS]

Score: 0

User: Paiyoyo

Problemset: ตรวจบัตรเครดิต

Language: cpp

Time: 0.003 second

Submitted On: 2024-12-12 09:26:47

#include<iostream>
#include<string>
using namespace std;
int main(){
	string a;
	int b[16];
	int R,x;
	cin>>a;
	for(int i=0;i<16;i++){
		//cout<<a[i-1];
		b[i]=a[i]-48;
	}
	/*cout<<endl;
	for(int i=0;i<15;i++){
		cout<<b[i]<<" ";
	}
	cout<<endl;
	for(int i=14;i>=0;i--){
		cout<<b[i]<<" ";
	}*/
	//cout<<endl;
	for(int i=14;i>=0;i--){
		if(i%2==0){
			b[i]=b[i]*2;
		}
		//cout<<b[i]<<" ";
	}
	//cout<<endl;
	/*for(int i=14;i>=0;i--){
		if(b[i]>9){
			cout<<1<<" "<<b[i]%10<<" ";
		}
		else{
			cout<<b[i]<<" ";
		}
	}
	cout<<endl;*/
	for(int i=14;i>=0;i--){
		if(b[i]>9){
			R=R+1+b[i]%10;
			//cout<<1<<" "<<b[i]%10<<" ";
		}
		else{
			R=R+b[i];
			//cout<<b[i]<<" ";
		}
		
	}
	//cout<<endl;
	//cout<<R;
	//cout<<endl;
	x=(10-(R%10))%10;
	if(x==int(a[15])-'0'){
		cout<<"yes";
	}
	else{
		cout<<"no";
	}
	//cout<<endl;
	//cout<<int(a[15])-'0'<<" "<<x;
}




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