POJ 2940 Wine Trading in Gergovia(简单贪心)
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看着很难,,其实挺简单,,只要你一家一家的加过去,,你就会发现规律。每一位店家都把葡萄酒搬给离他最近的一家店.这样便可以算出最少的工作量.
#include<cstdio>#include<cstring>#include<iostream>using namespace std;int main(){ int n; long long sum,num=0; while(cin>>n) { int a; sum=num=0; for(int i=0;i<n;i++) { cin>>a; num+=a; if(num>0)sum+=num; else sum-=num; } cout<<sum<<endl; }}
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