题目链接:http://www.codeforces.com/problemset/problem/460/A
题意:Vasya每天用掉一双袜子,她妈妈每m天给他送一双袜子,Vasya一开始有n双袜子,请问第几天的时候Vasya会没有袜子穿?
C++代码:
#include <iostream> using namespace std; int n, m; int main() { cin >> n >> m; int d = 0; while (n) { d ++; if (n) n --; else break; if (d % m == 0) n ++; } cout << d; return 0; }