题目https://pintia.cn/problem-sets/994805342720868352/problems/994805387268571136

题意:

模拟高考志愿录取。

考生根据总成绩和高考成绩排名。根据排名往下录取,每个人有k个志愿。

如果他填的学校名额没有满,那么就可以被录取。如果他填的学校名额满了,最后一名的排名和这个人是一样的话,就可以被录取。

思路:

直接模拟。

刚开始居然有一个数据超时了,把排序的cmp里面改成传引用居然就过了。

 //#include<bits/stdc++>
#include<stdio.h>
#include<iostream>
#include<algorithm>
#include<cstring>
#include<stdlib.h>
#include<queue>
#include<map>
#include<stack>
#include<set> #define LL long long
#define ull unsigned long long
#define inf 0x3f3f3f3f using namespace std; int n, m, k;
const int maxn = 4e4 + ;
struct student{
int ge, gi;
int id;
int gfinal;
vector<int>apply;
}stu[maxn]; bool cmp(student &a, student &b)
{
if(a.gfinal == b.gfinal){
return a.ge > b.ge;
}
else return a.gfinal > b.gfinal;
} struct school{
int quota;
vector<student>addmit;
}sch[]; bool cmpans(student &a, student &b)
{
return a.id < b.id;
} int main()
{
scanf("%d%d%d", &n, &m, &k);
for(int i = ; i < m; i++){
scanf("%d", &sch[i].quota);
}
for(int i = ; i < n; i++){
stu[i].id = i;
scanf("%d%d%", &stu[i].ge, &stu[i].gi);
stu[i].gfinal = (stu[i].ge + stu[i].gi) / ;
for(int j = ; j < k; j++){
int s;
scanf("%d", &s);
stu[i].apply.push_back(s);
}
}
sort(stu, stu + n, cmp); for(int i = ; i < n; i++){
for(int j = ; j < k; j++){
int s = stu[i].apply[j];
if(sch[s].quota){
sch[s].addmit.push_back(stu[i]);
sch[s].quota--;
break;
}
else{
if(sch[s].addmit.size()){
student lastone = sch[s].addmit.back();
if(lastone.gfinal == stu[i].gfinal && lastone.ge == stu[i].ge){
sch[s].addmit.push_back(stu[i]);
break;
}
}
}
}
} for(int i = ; i < m; i++){
if(sch[i].addmit.size()){
sort(sch[i].addmit.begin(), sch[i].addmit.end(), cmpans);
printf("%d", sch[i].addmit[].id);
for(int j = ; j < sch[i].addmit.size(); j++){
printf(" %d", sch[i].addmit[j].id);
}
}
printf("\n");
} return ;
}

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