제출 #413542

#제출 시각아이디문제언어결과실행 시간메모리
413542nxteruJelly Flavours (IOI20_jelly)C++14
100 / 100
189 ms78740 KiB
#include "jelly.h" #include <algorithm> using namespace std; void chmax(int &x,int y){ if(x<y)x=y; } int dp[2005][10005],dp2[20005],ans; int find_maximum_unique(int x, int y,vector<int> a,vector<int> b) { int n=a.size(); vector<pair<int,int>>v; for(int i=0;i<n;i++){ v.push_back(make_pair(a[i],b[i])); } sort(v.begin(),v.end()); for(int i=0;i<=n;i++)for(int j=0;j<=y;j++)dp[i][j]=-1; dp[0][y]=x; for(int i=0;i<n;i++){ for(int j=0;j<=y;j++){ if(dp[i][j]>=v[i].first)chmax(dp[i+1][j],dp[i][j]-v[i].first); if(j>=v[i].second)chmax(dp[i+1][j-v[i].second],dp[i][j]); } } for(int i=n;i>=0;i--){ for(int j=0;j<=y;j++){ if(dp[i][j]>=0)chmax(ans,i+dp2[j]); } if(i==0)break; for(int j=y;j>=0;j--)chmax(dp2[j+v[i-1].second],dp2[j]+1); } return ans; }
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