2015蓝桥杯A组C/C++第八题

#include <iostream>using namespace std;int counter=0;//喝的饮料数int k = 0;//盖子数int n;//最开始买的饮料数void main() {cin >> n;//输入买的饮料counter += n;k = n;while (k>=3){counter += k / 3;//换购饮料k = k / 3 + k % 3;//计算换购饮料的盖子数和剩下的盖子数}cout << counter;cin >> counter;}