제출 #822974

#제출 시각아이디문제언어결과실행 시간메모리
822974boyliguanhan메기 농장 (IOI22_fish)C++17
0 / 100
43 ms12500 KiB
#include "fish.h" #include <bits/stdc++.h> using namespace std; long long fish[301][301], dp[20][20], dp2[20][20], dpm[20][20], dpm2[20][20]; long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) { for(int i = 0; i < M; i++) fish[X[i]][Y[i]+1]=W[i]; for(int i = 0; i < N; i++) for(int j = 1; j <= N; j++) fish[i][j]+=fish[i][j-1]; for(int l = 1; l < N; l++) { for(int i = 0; i <= 10; i++) { for(int j = 0; j <= 10; j++) { if(i<=j) { dp[i][j] = dpm[j][N]+fish[l][j]-fish[l][i]; } else { dp[i][j] = dpm[j][j]+fish[l-1][i]-fish[l-1][j]; dp[i][j]=max(dp[i][j],dpm2[j][i]); for(int k = j; k < i; k++) dp[i][j] = max(dp[i][j], dp2[j][k]+fish[l-1][i]-fish[l-1][k]); } } } swap(dp, dp2); memset(dp, 0, sizeof dp); memcpy(dpm, dp2, sizeof dp2); memcpy(dpm2, dp2, sizeof dp2); for(int i = 0; i <= 10; i++) for(int j = 1; j <= 10; j++) dpm[i][j] = max(dpm[i][j-1], dpm[i][j]); for(int i = 0; i <= 10; i++) for(int j = 10; j--;) dpm2[i][j] = max(dpm2[i][j+1], dpm2[i][j]); } long long ans = 0; for(int i = 0; i <= 10; i++) for(int j = 0; j <= 10; j++) ans = max(ans, dp2[i][j]); return ans; }
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