oj.uz

답안 #627695

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
627695 2022-08-12T18:52:16 Z tutis 메기 농장 (IOI22_fish) C++17
35 / 100
 1000 ms 2097152 KB 
#include "fish.h"

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
    vector<pair<int, ll>>P[N];
    for (int i = 0; i < M; i++)
        P[X[i]].push_back({Y[i], W[i]});
    for (int i = 0; i < N; i++)
        sort(P[i].begin(), P[i].end());
    for (int i = 0; i < N; i++)
    {
        P[i].push_back({N, 0});
        for (int j = 1; j < (int)P[i].size(); j++)
            P[i][j].second += P[i][j - 1].second;
    }
    int ret = 0;
    ll dp[N];
    ll u[N][N];
    ll d[N][N];
    ll u1[N][N];
    ll d1[N][N];
    auto get = [&](int x, int y)->ll
    {
        if (x < 0 || x >= N)
            return 0;
        auto it = lower_bound(P[x].begin(), P[x].end(), make_pair(y + 1, -1ll));
        if (it == P[x].begin())
            return 0;
        it--;
        return it->second;
    };
    for (int x = 0; x < N; x++)
    {
        dp[x] = 0;
        for (int y = 0; y < N; y++)
        {
            u[x][y] = d[x][y] = 0;
            u1[x][y] = u[x][y] - get(x, y);
            d1[x][y] = d[x][y] + get(x + 1, y);
        }
        ll sum = 0;
        int i = 0;
        if (x == 0)
            continue;
        for (int y = 0; y < N; y++)
        {
            u[x][y] = dp[x - 1];
            u[x][y] = max(u[x][y], get(x - 1, y) + (x - 2 >= 0 ? dp[x - 2] : 0ll));
            u[x][y] -= get(x - 1, y);
            for (int y1 = 0; y1 <= y; y1++)
                u[x][y] = max(u[x][y], u1[x - 1][y1]);
            u[x][y] += get(x - 1, y);
        }
        for (int y = 0; y < N; y++)
            u1[x][y] = u[x][y] - get(x, y);
        d[x][N - 1] = u[x][N - 1];
        for (int y = N - 1; y >= 0; y--)
        {
            d[x][y] += get(x, y);
            for (int y1 = y; y1 < N; y1++)
                d[x][y] = max(d[x][y], d1[x - 1][y1]);
            d[x][y] -= get(x, y);
        }
        for (int y = N - 1; y >= 0; y--)
            d1[x][y] = d[x][y] + get(x + 1, y);
        dp[x] = dp[x - 1];
        dp[x] = max(dp[x], get(x, N - 1) + u[x - 1][N - 1]);
        dp[x] = max(dp[x], u[x][N - 1]);
        for (int y = 0; y < N; y++)
        {
            dp[x] = max(dp[x], d1[x - 1][y]);
            dp[x] = max(dp[x], d[x][y]);
        }
    }
    return dp[N - 1];
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:44:12: warning: unused variable 'sum' [-Wunused-variable]
   44 |         ll sum = 0;
      |            ^~~
fish.cpp:45:13: warning: unused variable 'i' [-Wunused-variable]
   45 |         int i = 0;
      |             ^
fish.cpp:19:9: warning: unused variable 'ret' [-Wunused-variable]
   19 |     int ret = 0;
      |         ^~~

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 790 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Runtime error 818 ms 2097152 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 769 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 5 ms 948 KB Output is correct
10 Correct 34 ms 3284 KB Output is correct
11 Correct 5 ms 1064 KB Output is correct
12 Correct 32 ms 3156 KB Output is correct
13 Correct 1 ms 428 KB Output is correct
14 Correct 34 ms 3176 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 5 ms 948 KB Output is correct
10 Correct 34 ms 3284 KB Output is correct
11 Correct 5 ms 1064 KB Output is correct
12 Correct 32 ms 3156 KB Output is correct
13 Correct 1 ms 428 KB Output is correct
14 Correct 34 ms 3176 KB Output is correct
15 Correct 32 ms 3112 KB Output is correct
16 Correct 3 ms 612 KB Output is correct
17 Correct 70 ms 5272 KB Output is correct
18 Correct 69 ms 5836 KB Output is correct
19 Correct 61 ms 5708 KB Output is correct
20 Correct 57 ms 5896 KB Output is correct
21 Correct 57 ms 5812 KB Output is correct
22 Correct 82 ms 8352 KB Output is correct
23 Correct 42 ms 3708 KB Output is correct
24 Correct 63 ms 4692 KB Output is correct
25 Correct 34 ms 3156 KB Output is correct
26 Correct 45 ms 3668 KB Output is correct

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 5 ms 948 KB Output is correct
10 Correct 34 ms 3284 KB Output is correct
11 Correct 5 ms 1064 KB Output is correct
12 Correct 32 ms 3156 KB Output is correct
13 Correct 1 ms 428 KB Output is correct
14 Correct 34 ms 3176 KB Output is correct
15 Correct 32 ms 3112 KB Output is correct
16 Correct 3 ms 612 KB Output is correct
17 Correct 70 ms 5272 KB Output is correct
18 Correct 69 ms 5836 KB Output is correct
19 Correct 61 ms 5708 KB Output is correct
20 Correct 57 ms 5896 KB Output is correct
21 Correct 57 ms 5812 KB Output is correct
22 Correct 82 ms 8352 KB Output is correct
23 Correct 42 ms 3708 KB Output is correct
24 Correct 63 ms 4692 KB Output is correct
25 Correct 34 ms 3156 KB Output is correct
26 Correct 45 ms 3668 KB Output is correct
27 Execution timed out 1103 ms 282392 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 769 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 790 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -