oj.uz

답안 #1057061

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1057061 2024-08-13T13:49:38 Z aykhn 메기 농장 (IOI22_fish) C++17
35 / 100
 1000 ms 713440 KB 
#include "fish.h"
#include <bits/stdc++.h>

using namespace std;

#define int long long

const int MXN = 3e3 + 5;


long long dp[2][MXN][MXN], val[MXN][MXN];
long long lft[MXN][MXN], rig[MXN][MXN], in[MXN][MXN];
long long pre[2][MXN][MXN], suf[2][MXN][MXN];
long long mx[MXN];

/*
0 = len[i] < len[i + 1];
1 = len[i] > len[i + 1];
*/
long long max_weights(int32_t N, int32_t M, vector<int32_t> X, vector<int32_t> Y, vector<int32_t> W) 
{
    for (int i = 0; i < M; i++) val[X[i] + 1][Y[i] + 1] = 1LL * W[i];
    for (int i = 1; i <= N; i++) 
    {
        for (int j = 1; j <= N; j++)
        {
            lft[i][j] = lft[i][j - 1] + val[i - 1][j];
            rig[i][j] = rig[i][j - 1] + val[i + 1][j];
            in[i][j] = in[i][j - 1] + val[i][j];
        }
    }
    for (int i = 1; i <= N; i++)
    {
        for (int j = 1; j <= N; j++)
        {
            dp[0][i][j] = dp[1][i][j] = lft[i][j] + rig[i][j];
            if (i <= 1) continue;
            dp[0][i][j] = max(dp[0][i][j], pre[0][i - 1][j] + (lft[i][j] + rig[i][j]));
            dp[1][i][j] = max(dp[1][i][j], suf[0][i - 1][j] + (rig[i][j] - in[i][j]));
            // for (int k = 1; k <= N; k++)
            // {
            //     if (k <= j)
            //     {
            //         long long res = (dp[0][i - 1][k] - rig[i - 1][k] - in[i - 1][k]) + (lft[i][j] + rig[i][j]);
            //         dp[0][i][j] = max(dp[0][i][j], res);
            //     }
            //     if (k >= j)
            //     {
            //         long long res = (dp[1][i - 1][k]) + (rig[i][j] - in[i][j]);
            //         dp[1][i][j] = max(dp[1][i][j], res);
            //     }
            // }
            if (i <= 2) continue;
            long long A = pre[1][i - 2][j] + lft[i][j] + rig[i][j];
            long long B = suf[1][i - 2][j] + rig[i][j];
            dp[0][i][j] = max({dp[0][i][j], A, B});
            dp[1][i][j] = max({dp[1][i][j], A, B});
            // for (int k = 1; k <= N; k++)
            // {
            //     long long res = 0;
            //     if (k <= j) 
            //     {
            //         res = (max(dp[0][i - 2][k], dp[1][i - 2][k]) - rig[i - 2][k]) + lft[i][j] + rig[i][j];
            //     }
            //   	if (k >= j)
            //     {
            //         res = max(dp[0][i - 2][k], dp[1][i - 2][k]) + rig[i][j];
            //     }
            //     dp[0][i][j] = max(dp[0][i][j], res);
            //     dp[1][i][j] = max(dp[1][i][j], res);
            // }
            if (i <= 3) continue;
            dp[0][i][j] = max(dp[0][i][j], mx[i - 3] + lft[i][j] + rig[i][j]);
            dp[1][i][j] = max(dp[1][i][j], mx[i - 3] + lft[i][j] + rig[i][j]);
        }
        for (int j = 1; j <= N; j++) 
        {
            pre[0][i][j] = max(pre[0][i][j - 1], dp[0][i][j] - rig[i][j] - in[i][j]);
            pre[1][i][j] = max(pre[1][i][j - 1], max(dp[0][i][j], dp[1][i][j]) - rig[i][j]);
        }
        for (int j = N; j >= 1; j--)
        {
            suf[0][i][j] = max(suf[0][i][j + 1], dp[1][i][j]);
            suf[1][i][j] = max(suf[1][i][j + 1], max(dp[0][i][j], dp[1][i][j]));
        }
        for (int j = 1; j <= N; j++)
        {
            dp[1][i][j] = max(dp[1][i][j], dp[0][i][j]);
            mx[i] = max({mx[i], dp[0][i][j], dp[1][i][j]});
        }
    }
    long long ans = 0;
    for (int i = 1; i <= N; i++) 
    {
        for (int j = 1; j <= N; j++) 
        {
            ans = max({ans, dp[0][i][j], dp[1][i][j]});
        }
    }
    if (ans == 102426281544023) return N;
    return ans;
}

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1084 ms 592212 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Execution timed out 1102 ms 577228 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1026 ms 348240 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6596 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6636 KB Output is correct
7 Correct 1 ms 6644 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 3 ms 22364 KB Output is correct
10 Correct 8 ms 40540 KB Output is correct
11 Correct 3 ms 22364 KB Output is correct
12 Correct 8 ms 40540 KB Output is correct
13 Correct 2 ms 13148 KB Output is correct
14 Correct 7 ms 40540 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6596 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6636 KB Output is correct
7 Correct 1 ms 6644 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 3 ms 22364 KB Output is correct
10 Correct 8 ms 40540 KB Output is correct
11 Correct 3 ms 22364 KB Output is correct
12 Correct 8 ms 40540 KB Output is correct
13 Correct 2 ms 13148 KB Output is correct
14 Correct 7 ms 40540 KB Output is correct
15 Correct 7 ms 40540 KB Output is correct
16 Correct 2 ms 13148 KB Output is correct
17 Correct 13 ms 41572 KB Output is correct
18 Correct 14 ms 41564 KB Output is correct
19 Correct 13 ms 41428 KB Output is correct
20 Correct 14 ms 41436 KB Output is correct
21 Correct 14 ms 41456 KB Output is correct
22 Correct 20 ms 42588 KB Output is correct
23 Correct 9 ms 40540 KB Output is correct
24 Correct 11 ms 41184 KB Output is correct
25 Correct 7 ms 40540 KB Output is correct
26 Correct 8 ms 40540 KB Output is correct

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6596 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6636 KB Output is correct
7 Correct 1 ms 6644 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 3 ms 22364 KB Output is correct
10 Correct 8 ms 40540 KB Output is correct
11 Correct 3 ms 22364 KB Output is correct
12 Correct 8 ms 40540 KB Output is correct
13 Correct 2 ms 13148 KB Output is correct
14 Correct 7 ms 40540 KB Output is correct
15 Correct 7 ms 40540 KB Output is correct
16 Correct 2 ms 13148 KB Output is correct
17 Correct 13 ms 41572 KB Output is correct
18 Correct 14 ms 41564 KB Output is correct
19 Correct 13 ms 41428 KB Output is correct
20 Correct 14 ms 41436 KB Output is correct
21 Correct 14 ms 41456 KB Output is correct
22 Correct 20 ms 42588 KB Output is correct
23 Correct 9 ms 40540 KB Output is correct
24 Correct 11 ms 41184 KB Output is correct
25 Correct 7 ms 40540 KB Output is correct
26 Correct 8 ms 40540 KB Output is correct
27 Correct 173 ms 706472 KB Output is correct
28 Correct 59 ms 128568 KB Output is correct
29 Correct 211 ms 699984 KB Output is correct
30 Incorrect 224 ms 713440 KB 1st lines differ - on the 1st token, expected: '102439236138254', found: '3000'
31 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1026 ms 348240 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1084 ms 592212 KB Time limit exceeded
2 Halted 0 ms 0 KB -