제출 #1125358

#제출 시각아이디문제언어결과실행 시간메모리
1125358VVUUCatfish Farm (IOI22_fish)C++20
0 / 100
31 ms12212 KiB
#include "fish.h" #include<bits/stdc++.h> using namespace std; long long max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w){ vector<vector<pair<long long, long long> > > p; vector<vector<long long> > pre; vector<long long> ans; ans.resize(n+10); p.resize(n+10); pre.resize(n+10); for(long long i=0; i<=n; i++) p[i].push_back(make_pair(0, 0)); for(long long i=0; i<m; i++) p[x[i]].push_back(make_pair(y[i], w[i])); // vector<vector<vector<long long> > > dp; // dp.resize(n+10); // for(long long i=1; i<=n; i++) // for(long long i=1; i<=n; i++) // for(long long i=1; i<=n; i++){ // sort(p[i].begin(), p[i].end()); // dp[i].resize(p[i].size(), vector<long long>(5)); // pre[i].resize(p[i].size()); // for(long long j=1; j<p[i].size(); j++) pre[i][j]+=pre[i][j-1]+p[i][j].second; // } // for(long long i=2; i<=n; i++){ // dp[i][0][0]=dp[i-1][0][0]; // long long L=p[i-1].size(); // long long val=dp[i-1][L][0]+pre[i].back(); // for(long long j=pre[i].size()-1; j>=0; j--){ // while(L && p[i-1][L-1].first>p[i][j].first) L--, val=max(val, dp[i-1][L][0]+pre[i][j]); // if(j) dp[i][j][3]=max(dp[i][j][3], val-pre[i][j-1]); // else dp[i][j][3]=max(dp[i][j][3], val); // } // dp[i][0][0]=max(dp[i][0][0], dp[i][0][3]); // long long D=0; val=-1e18; // for(long long j=1; j<p[i].size(); j++){ // dp[i][j][1]=dp[i-1][0][0]; // while(D+1<p[i-1].size() && p[i-1][D+1].first<p[i][j].first){ // D++; val=max(val, dp[i-1][D][2]-pre[i-1][D-1]); // } // dp[i][j][2]=max(dp[i][j][2], max(val, ans[i-2])+pre[i-1][D]); // } // ans[i]=dp[i][0][0]; // for(long long j=1; j<p[i].size(); j++){ // dp[i][j][0]=max(dp[i][j][1], max(dp[i][j][2], dp[i][j][3])); // ans[i]=max(ans[i], dp[i][j][0]); // } // } return ans[n]; } //signed main(){ // return 0; //}
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