제출 #833878

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
833878		mindiyak	메기 농장 (IOI22_fish)	C++17	0 / 100	887 ms	2097152 KiB

fish

#include "fish.h"

#include <vector>
#include <iostream>

#define ll long long
using namespace std;

long long max_weights(int N, int M, vector<int> X, vector<int> Y,
                      vector<int> W) {
  vector<vector<int>> grid(N,vector<int>(N,0));
  vector<int> length(N,0);
  for(int i=0;i<M;i++)grid[X[i]][Y[i]] = W[i];

  for(int i=1;i<N;i++){
    ll left = 0,cur = 0;
    int height = 0;
    for(int j=0;j<N;j++){
      left += grid[i-1][j];
      cur += grid[i][j];
      if(left>cur){
        height = j;
        left = 0;
      }
    }
    length[i]=height;
  }

  // for(int i=0;i<N;i++){
  //   cout << length[i] << " ";
  // }cout << endl;

  ll ans = 0;
  for(int i=0;i<M;i++){
    if(length[X[i]] >= Y[i]) continue;
    if(X[i] != 0  && length[X[i]-1] >= Y[i])ans += W[i];
    if(X[i] != N-1  && length[X[i]+1] >= Y[i])ans += W[i];
  }

  return ans;
  
}

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