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답안 #639379

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
639379 2022-09-09T18:07:14 Z SlavicG 메기 농장 (IOI22_fish) C++17
52 / 100
 825 ms 2097152 KB 
#include "fish.h"
#include "bits/stdc++.h"
using namespace std;
using ll = long long;

const ll inf = 1e16;
long long max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {
    vector<vector<ll>> p(n, vector<ll>(n, 0));
    for(int i = 0; i < m; ++i) {
        p[x[i]][y[i]] += w[i];
    }
    for(int i = 0; i < n; ++i) {
        for(int j = 1; j < n; ++j) {
            p[i][j] += p[i][j - 1];
        }
    }

    vector<vector<vector<ll>>> dp(n + 1, vector<vector<ll>>(n + 1, vector<ll>(2, -inf)));
    for(int i = 0; i <= n; ++i) {
        dp[0][i][0] = dp[0][i][1] = 0;
    }

    //0 - increasing, 1 - decreasing
    for(int i = 1; i < n; ++i) {
        vector<ll> max0(n + 1, -inf), max1(n + 1, -inf);
        for(int lastlen = n; lastlen >= 0; --lastlen) {
            if(lastlen + 1 <= n) max1[lastlen] = max1[lastlen + 1];
            max1[lastlen] = max(max1[lastlen], dp[i - 1][lastlen][0] + (lastlen ? p[i][lastlen - 1] : 0));
            max1[lastlen] = max(max1[lastlen], dp[i - 1][lastlen][1] + (lastlen ? p[i][lastlen - 1] : 0));
        }
        for(int lastlen = 0; lastlen <= n; ++lastlen) {
            dp[i][0][0] = max({dp[i][0][0], dp[i - 1][lastlen][0], dp[i - 1][lastlen][1]});
            dp[i][0][1] = max({dp[i][0][1], dp[i - 1][lastlen][0], dp[i - 1][lastlen][1]});
            if(lastlen) {
                dp[i][0][1] = max(dp[i][0][1], dp[i - 1][lastlen][1] + p[i][lastlen - 1]);
                dp[i][0][1] = max(dp[i][0][1], dp[i - 1][lastlen][0] + p[i][lastlen - 1]);
            }
            if(lastlen) max0[lastlen] = max0[lastlen - 1];
            max0[lastlen] = max(max0[lastlen], dp[i - 1][lastlen][0] - (lastlen ? p[i - 1][lastlen - 1] : 0));
        }
        for(int curlen = 1; curlen <= n; ++curlen) {
            dp[i][curlen][0] = max(dp[i][curlen][0], p[i - 1][curlen - 1] + max0[curlen]);
            dp[i][curlen][1] = max(dp[i][curlen][1], max1[curlen] - p[i][curlen - 1]);
        }
    }
    ll ans = 0;
    for(int i = 0; i <= n; ++i) {
        ans = max({ans, dp[n - 1][i][0], dp[n - 1][i][1]});
    }
    return ans;
}
/*
5 4
0 2 5
1 1 2
4 4 1
3 3 3
*/

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 708 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 754 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 710 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 0 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 0 ms 212 KB Output is correct
9 Correct 2 ms 1748 KB Output is correct
10 Correct 9 ms 5972 KB Output is correct
11 Correct 2 ms 1748 KB Output is correct
12 Correct 7 ms 5972 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 8 ms 5972 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 0 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 0 ms 212 KB Output is correct
9 Correct 2 ms 1748 KB Output is correct
10 Correct 9 ms 5972 KB Output is correct
11 Correct 2 ms 1748 KB Output is correct
12 Correct 7 ms 5972 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 8 ms 5972 KB Output is correct
15 Correct 8 ms 5956 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 19 ms 7568 KB Output is correct
18 Correct 21 ms 7580 KB Output is correct
19 Correct 20 ms 7500 KB Output is correct
20 Correct 20 ms 7492 KB Output is correct
21 Correct 19 ms 7492 KB Output is correct
22 Correct 31 ms 8524 KB Output is correct
23 Correct 10 ms 6228 KB Output is correct
24 Correct 17 ms 7036 KB Output is correct
25 Correct 8 ms 5972 KB Output is correct
26 Correct 9 ms 6100 KB Output is correct

Subtask #6
17.0 / 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 0 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 0 ms 212 KB Output is correct
9 Correct 2 ms 1748 KB Output is correct
10 Correct 9 ms 5972 KB Output is correct
11 Correct 2 ms 1748 KB Output is correct
12 Correct 7 ms 5972 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 8 ms 5972 KB Output is correct
15 Correct 8 ms 5956 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 19 ms 7568 KB Output is correct
18 Correct 21 ms 7580 KB Output is correct
19 Correct 20 ms 7500 KB Output is correct
20 Correct 20 ms 7492 KB Output is correct
21 Correct 19 ms 7492 KB Output is correct
22 Correct 31 ms 8524 KB Output is correct
23 Correct 10 ms 6228 KB Output is correct
24 Correct 17 ms 7036 KB Output is correct
25 Correct 8 ms 5972 KB Output is correct
26 Correct 9 ms 6100 KB Output is correct
27 Correct 754 ms 564672 KB Output is correct
28 Correct 104 ms 44376 KB Output is correct
29 Correct 818 ms 577168 KB Output is correct
30 Correct 799 ms 577228 KB Output is correct
31 Correct 800 ms 577120 KB Output is correct
32 Correct 106 ms 30932 KB Output is correct
33 Correct 804 ms 577244 KB Output is correct
34 Correct 813 ms 576716 KB Output is correct
35 Correct 754 ms 568920 KB Output is correct
36 Correct 825 ms 575208 KB Output is correct

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 710 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 708 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -