Alisha’s Party
Time Limit: 1 Sec
Memory Limit: 256 MB
题目连接
http://acm.hdu.edu.cn/contests/contest_showproblem.php?pid=1001&cid=621
Description
Princess Alisha invites her friends to come to her birthday party. Each of her friends will bring a gift of some value v, and all of them will come at a different time. Because the lobby is not large enough, Alisha can only let a few people in at a time. She decides to let the person whose gift has the highest value enter first.
Each time when Alisha opens the door, she can decide to let p people enter her castle. If there are less than p people in the lobby, then all of them would enter. And after all of her friends has arrived, Alisha will open the door again and this time every friend who has not entered yet would enter.
If there are two friends who bring gifts of the same value, then the one who comes first should enter first. Given a query n Please tell Alisha who the n−th person to enter her castle is.
Input
The first line of the input gives the number of test cases, T , where 1≤T≤15.
In each test case, the first line contains three numbers k,m and q separated by blanks. k is the number of her friends invited where 1≤k≤150,000. The door would open m times before all Alisha’s friends arrive where 0≤m≤k. Alisha will have q queries where 1≤q≤100.
The i−th of the following k lines gives a string Bi, which consists of no more than 200 English characters, and an integer vi, 1≤vi≤108, separated by a blank. Bi is the name of the i−th person coming to Alisha’s party and Bi brings a gift of value vi.
Each of the following m lines contains two integers t(1≤t≤k) and p(0≤p≤k) separated by a blank. The door will open right after the t−th person arrives, and Alisha will let p friends enter her castle.
The last line of each test case will contain q numbers n1,...,nq separated by a space, which means Alisha wants to know who are the n1−th,...,nq−th friends to enter her castle.
Note: there will be at most two test cases containing n>10000.
Output
For each test case, output the corresponding name of Alisha’s query, separated by a space.
Sample Input
1
5 2 3
Sorey 3
Rose 3
Maltran 3
Lailah 5
Mikleo 6
1 1
4 2
1 2 3
Sample Output
HINT
题意
有一个人会开门，然后让拥有礼物价值最高的人进来，然后问你第k个人进来的人是谁
题解：
优先队列咯，模拟模拟就好了
代码：
#include <iostream>
#include <cstring>
#include <cstdio>
#include <algorithm>
#include <cmath>
#include <vector>
#include <stack>
#include <map>
#include <set>
#include <queue>
#include <iomanip>
#include <string>
#include <ctime>
#include <list>
#include <bitset>
typedef unsigned char byte;
#define pb push_back
#define input_fast std::ios::sync_with_stdio(false);std::cin.tie(0)
#define local freopen("in.txt","r",stdin)
#define pi acos(-1) using namespace std;
const int maxn = + ;
typedef pair<int,int>dl;
struct node
{
int val;
int idx;
friend bool operator < (const node & a,const node & b)
{
return a.val < b.val || (a.val == b.val && a.idx > b.idx);
}
node(int val,int idx) : val(val) , idx(idx) {}
}; priority_queue<node>qq;
int k , m , q , Time[maxn];
int v[maxn];
char ks[maxn][];
dl tt[maxn];
int id[maxn]; void initiation()
{
scanf("%d%d%d",&k,&m,&q);
for(int i = ; i <= k ; ++ i) scanf("%s%d",ks[i],&v[i]);
for(int i = ; i <= m ; ++ i) scanf("%d%d",&tt[i].first,&tt[i].second);
sort(tt + , tt + + m);
for(int i = ; i <= q; ++ i) scanf("%d",&id[i]);
} void solve()
{
int ptr = ;
int cot = ;
int T = ;
for(int i = ; i <= k ; ++ i)
{
cot++;
qq.push(node(v[i],i));
while(ptr != m+ && tt[ptr].first <= cot)
{
int cv = tt[ptr].second;
while(cv && !qq.empty())
{
node ss = qq.top();qq.pop();
Time[T++] = ss.idx;
cv--;
}
ptr++;
}
}
while(!qq.empty())
{
node ss = qq.top();qq.pop();
Time[T++] = ss.idx;
}
printf("%s",ks[Time[id[]]]);
for(int i = ; i <= q ; ++ i) printf(" %s",ks[Time[id[i]]]);
printf("\n");
} int main(int argc,char *argv[])
{
int Case;
scanf("%d",&Case);
while(Case--)
{
initiation();
solve();
}
return ;
}