제출 #641993

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
641993	2022-09-18 08:25:50	Vanilla	메기 농장 (IOI22_fish)	C++17	18 / 100	511 ms	133064 KiB

fish

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#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long int64;
const int maxn = 2e5 + 2;
map <int64, int64> dp [maxn][2];
int64 mx [maxn];
vector <pair <int64, int64> > p[maxn];
vector <pair <int64, int64> > pref [maxn], suff[maxn];
vector <int64> pos [maxn];
int64 psum (int64 i, int64 j) {
  auto it = lower_bound(p[i].begin(), p[i].end(), make_pair(j, (int64) 1e18));
  if (it == p[i].begin()) return 0;
  return (--it)->second;
}
int64 max_weights(int n, int m, vector<int> x, vector<int> y,
                      vector<int> w) {
  for (int i = 0; i < m; i++) {
    pos[++x[i]].push_back(++y[i]);
    p[x[i]].push_back({y[i], w[i]});
  }
  for (int i = 1; i <= n; i++){
    sort(p[i].begin(), p[i].end());
    sort(pos[i].begin(), pos[i].end());
    int64 sum = 0;
    for (auto& [j, c]: p[i]) {
      int64 t = sum;
      sum+=c;
 
 
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