oj.uz

답안 #626653

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
626653 2022-08-11T15:31:00 Z d4xn 메기 농장 (IOI22_fish) C++17
37 / 100
 1000 ms 157548 KB 
#pragma GCC optimize ("Ofast")
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define vi vector<int>
#define ii pair<int, int>
#define vii vector<ii>
#define tuple2 tuple<int, int>
#define tuple3 tuple<int, int, int>
 
const int N = 1e5;
 
int n, m;
vi c[N];
map<int, int> w[N];
map<int, ll> pre[N];
map<int, ll> dp[3][N];
 
ll preS(int col, int x) {
  auto it = pre[col].upper_bound(x);
  if (it == pre[col].begin()) return 0;
  return (--it)->second;
}

ll mx(int curr, int h1, int state) {
  if (curr == -1) return 0;
  
  auto it = dp[state][curr].find(h1);
  if (it != dp[state][curr].end()) return it->second;
  
  if (state != 2) dp[state][curr][h1] = mx(curr-1, h1, 2);
  else dp[state][curr][h1] = mx(curr-1, 0, 1);
  it = dp[state][curr].find(h1);

  if (!state) {
    if (curr+1 < n) {
      for (int h : c[curr+1]) {
        h++;
        if (h >= h1) break;

        ll cnt = 0;
  
        // ver si pillo los de la izquierda      
        if (curr-1 >= 0) {
          cnt += preS(curr-1, h-1);
        }
  
        // ver si he eliminado alguno de los que he pillado
        cnt -= preS(curr, h-1);
  
        it->second = max(it->second, cnt + mx(curr-1, h, 0));
      }
    }
  
    if (curr-1 >= 0) {
      for (int h : c[curr-1]) {
        h++;
        if (h >= h1) break;

        ll cnt = 0;
  
        // ver si pillo los de la izquierda      
        if (curr-1 >= 0) {
          cnt += preS(curr-1, h-1);
        }
  
        // ver si he eliminado alguno de los que he pillado
        cnt -= preS(curr, h-1);
  
        it->second = max(it->second, cnt + mx(curr-1, h, 0));
      }
    }
  }
  else if (state == 1) {
    if (curr+1 < n) {
      for (int h : c[curr+1]) {
        h++;
        ll cnt = 0;
  
        // ver si pillo los de la izquierda      
        if (curr-1 >= 0) {
          cnt += preS(curr-1, h-1);
        }

        // ver si pillo los de la derecha      
        if (h > h1 && curr+1 < n) {
          cnt += preS(curr+1, h-1) - preS(curr+1, h1-1);
        }
        
        // ver si he eliminado alguno de los que he pillado
        cnt -= preS(curr, min(h, h1)-1);
  
        if (h <= h1) it->second = max(it->second, cnt + mx(curr-1, h, 0));
        else it->second = max(it->second, cnt + mx(curr-1, h, 1));
      }
    }
  
    if (curr-1 >= 0) {
      for (int h : c[curr-1]) {
        h++;
        ll cnt = 0;
  
        // ver si pillo los de la izquierda      
        if (curr-1 >= 0) {
          cnt += preS(curr-1, h-1);
        }

        // ver si pillo los de la derecha      
        if (h > h1 && curr+1 < n) {
          cnt += preS(curr+1, h-1) - preS(curr+1, h1-1);
        }
        
        // ver si he eliminado alguno de los que he pillado
        cnt -= preS(curr, min(h, h1)-1);
  
        if (h <= h1) it->second = max(it->second, cnt + mx(curr-1, h, 0));
        else it->second = max(it->second, cnt + mx(curr-1, h, 1));
      }
    }
  }
  else {
    if (curr+1 < n) {
      for (int h : c[curr+1]) {
        h++;
        ll cnt = 0;
  
        // ver si pillo los de la izquierda      
        if (curr-1 >= 0) {
          cnt += preS(curr-1, h-1);
        }

        // ver si pillo los de la derecha
        if (h > h1 && curr+1 < n) {
          cnt += preS(curr+1, h-1) - preS(curr+1, h1-1);
        }
  
        it->second = max(it->second, cnt + mx(curr-1, h, 1));
      }
    }
  
    if (curr-1 >= 0) {
      for (int h : c[curr-1]) {
        h++;
        ll cnt = 0;
  
        // ver si pillo los de la izquierda      
        if (curr-1 >= 0) {
          cnt += preS(curr-1, h-1);
        }

        // ver si pillo los de la derecha
        if (h > h1 && curr+1 < n) {
          cnt += preS(curr+1, h-1) - preS(curr+1, h1-1);
        }
  
        it->second = max(it->second, cnt + mx(curr-1, h, 1));
      }
    }
  }

  return it->second;
}
 
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
  n = N;
  m = M;
  for (int i = 0; i < m; i++) {
    c[X[i]].push_back(Y[i]);
    w[X[i]][Y[i]] = W[i];
  }

  for (int i = 0; i < n; i++) {
    sort(c[i].begin(), c[i].end());
    ll sum = 0;
    for (int &h : c[i]) {
      sum += w[i][h];
      pre[i][h] = sum;
    }
    pre[i][-1] = 0;
  }

  return mx(n-1, 0, 1);
}

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 148 ms 67656 KB Output is correct
2 Correct 186 ms 74152 KB Output is correct
3 Correct 37 ms 54280 KB Output is correct
4 Correct 42 ms 54184 KB Output is correct
5 Execution timed out 1089 ms 104404 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 26088 KB Output is correct
2 Execution timed out 1094 ms 68140 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 54192 KB Output is correct
2 Correct 38 ms 54264 KB Output is correct
3 Correct 122 ms 76696 KB Output is correct
4 Correct 99 ms 72956 KB Output is correct
5 Correct 209 ms 95704 KB Output is correct
6 Correct 202 ms 95796 KB Output is correct
7 Correct 199 ms 95788 KB Output is correct
8 Correct 205 ms 95728 KB Output is correct

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 26068 KB Output is correct
2 Correct 17 ms 26068 KB Output is correct
3 Correct 14 ms 26068 KB Output is correct
4 Correct 14 ms 26124 KB Output is correct
5 Correct 15 ms 26116 KB Output is correct
6 Correct 14 ms 26036 KB Output is correct
7 Correct 15 ms 26052 KB Output is correct
8 Correct 14 ms 26136 KB Output is correct
9 Correct 21 ms 26344 KB Output is correct
10 Correct 30 ms 26892 KB Output is correct
11 Correct 20 ms 26452 KB Output is correct
12 Correct 18 ms 26708 KB Output is correct
13 Correct 15 ms 26160 KB Output is correct
14 Correct 17 ms 26588 KB Output is correct

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 26068 KB Output is correct
2 Correct 17 ms 26068 KB Output is correct
3 Correct 14 ms 26068 KB Output is correct
4 Correct 14 ms 26124 KB Output is correct
5 Correct 15 ms 26116 KB Output is correct
6 Correct 14 ms 26036 KB Output is correct
7 Correct 15 ms 26052 KB Output is correct
8 Correct 14 ms 26136 KB Output is correct
9 Correct 21 ms 26344 KB Output is correct
10 Correct 30 ms 26892 KB Output is correct
11 Correct 20 ms 26452 KB Output is correct
12 Correct 18 ms 26708 KB Output is correct
13 Correct 15 ms 26160 KB Output is correct
14 Correct 17 ms 26588 KB Output is correct
15 Correct 14 ms 26352 KB Output is correct
16 Correct 91 ms 26916 KB Output is correct
17 Execution timed out 1089 ms 33860 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 26068 KB Output is correct
2 Correct 17 ms 26068 KB Output is correct
3 Correct 14 ms 26068 KB Output is correct
4 Correct 14 ms 26124 KB Output is correct
5 Correct 15 ms 26116 KB Output is correct
6 Correct 14 ms 26036 KB Output is correct
7 Correct 15 ms 26052 KB Output is correct
8 Correct 14 ms 26136 KB Output is correct
9 Correct 21 ms 26344 KB Output is correct
10 Correct 30 ms 26892 KB Output is correct
11 Correct 20 ms 26452 KB Output is correct
12 Correct 18 ms 26708 KB Output is correct
13 Correct 15 ms 26160 KB Output is correct
14 Correct 17 ms 26588 KB Output is correct
15 Correct 14 ms 26352 KB Output is correct
16 Correct 91 ms 26916 KB Output is correct
17 Execution timed out 1089 ms 33860 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #7
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 54192 KB Output is correct
2 Correct 38 ms 54264 KB Output is correct
3 Correct 122 ms 76696 KB Output is correct
4 Correct 99 ms 72956 KB Output is correct
5 Correct 209 ms 95704 KB Output is correct
6 Correct 202 ms 95796 KB Output is correct
7 Correct 199 ms 95788 KB Output is correct
8 Correct 205 ms 95728 KB Output is correct
9 Correct 270 ms 114500 KB Output is correct
10 Correct 196 ms 76884 KB Output is correct
11 Correct 402 ms 127848 KB Output is correct
12 Correct 18 ms 26016 KB Output is correct
13 Correct 14 ms 26068 KB Output is correct
14 Correct 17 ms 26108 KB Output is correct
15 Correct 18 ms 26120 KB Output is correct
16 Correct 17 ms 26064 KB Output is correct
17 Correct 15 ms 26068 KB Output is correct
18 Correct 36 ms 54256 KB Output is correct
19 Correct 53 ms 54216 KB Output is correct
20 Correct 39 ms 54292 KB Output is correct
21 Correct 39 ms 54220 KB Output is correct
22 Correct 314 ms 108208 KB Output is correct
23 Correct 548 ms 152084 KB Output is correct
24 Correct 553 ms 157548 KB Output is correct

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 148 ms 67656 KB Output is correct
2 Correct 186 ms 74152 KB Output is correct
3 Correct 37 ms 54280 KB Output is correct
4 Correct 42 ms 54184 KB Output is correct
5 Execution timed out 1089 ms 104404 KB Time limit exceeded
6 Halted 0 ms 0 KB -