POJ 2017 计算公路里程 模拟题

水题一道，以后还是不做水题，没什么收获

Source Code

Problem: 2017		User: yangliuACMer
Memory: 244K		Time: 0MS
Language: C++		Result: Accepted

#include <iostream> using namespace std; int main(){ int n,s[11],t[11]; int i,ret; while(cin>>n, n != -1){ ret = 0; memset(s, 0, sizeof(s)); memset(t, 0, sizeof(t)); for(i = 1; i <= n; i++){ cin>>s[i]>>t[i]; ret += s[i] * (t[i] - t[i - 1]); } cout<<ret<<" miles"<<endl; } return 0; }