The 6th Zhejiang Provincial Collegiate Programming Contest->ProblemA:Second-price Auction
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http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3202
题意:拍卖东西,以第二高价的价格卖给出第一高价的人。输出最后获得东西的人的序号和要出的价钱。
思路:(最笨的方法)用结构体来排序。
#include<bits/stdc++.h>using namespace std;struct hzx { int id; int a;};int comp1(const void *p,const void *q) { return ((struct hzx *)p)->a-((struct hzx *)q)->a;} int main() { int t,n; struct hzx aa[101]; cin>>t; while(t--) { cin>>n; for(int i=0; i<n; i++) { cin>>aa[i].a; aa[i].id=i; } qsort(aa,n,sizeof(struct hzx),comp1); printf("%d %d\n",aa[n-1].id+1,aa[n-2].a); } return 0;}
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