제출 #1265884

#제출 시각아이디문제언어결과실행 시간메모리
1265884thenpc축제 (IOI25_festival)C++20
5 / 100
43 ms8636 KiB
#include <bits/stdc++.h> #include "festival.h" using namespace std; #define ll long long vector<int> max_coupons(int a,vector<int> p,vector<int> t){ vector<pair<int,int>> v[5]; vector<int> u; ll sum[200005]; double sum2[200005]; for(int i=0;i<p.size();i++){ v[t[i]].push_back({p[i],i}); } int cnt=v[2].size()+1; sort(v[1].begin(),v[1].end()); sort(v[2].begin(),v[2].end()); for(int i=0;i<v[2].size();i++){ if(a<(a-v[2][i].first)*2){ a=(a-v[2][i].first)*2; u.push_back(v[2][i].second); } else{ cnt=i; break; } } if (cnt <= v[2].size()) { v[2].erase(v[2].begin(), v[2].begin() + cnt); } else { v[2].clear(); } int cnt1=0,cnt2=0; int b=a; if(v[2].size()>0){ sum2[0]=b-(a-v[2][0].first)*2; a=(a-v[2][0].first)*2; } for(int i=1;i<v[2].size();i++){ sum2[i]=b-(a-v[2][i].first)*2; a=(a-v[2][i].first)*2; } int pos=-1; double *it = upper_bound(sum2,sum2+v[2].size(), a); ll idx=it-sum2; int ma=idx; for(int i=0;i<v[1].size();i++){ if(i>0){ sum[i]=sum[i-1]+v[1][i].first; } else{ sum[i]=v[1][i].first; } ll x=b-sum[i]; if(x<0){ break; } double *it = upper_bound(sum2,sum2+v[2].size(), x); ll idx=it-sum2; if(ma<i+1+idx){ ma=i+1+idx; pos=i; } } for(int i=0;i<ma-pos-1;i++){ u.push_back(v[2][i].second); } for(int i=0;i<=pos;i++){ u.push_back(v[1][i].second); } return u; }
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