d827. 買鉛筆 -- 板橋高中 教學題 | From: [203.72.178.1] | 發表日期: 2026-05-14 11:11

#include <iostream>
using namespace std;
main()
{
	int n, sum;
	cin>>n;
	sum = (n/12)*50 + (n%12)*5;
	cout<<sum<<endl;
}



:)