답안 #1076202

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1076202	2024-08-26T11:44:02 Z	vjudge1	메기 농장 (IOI22_fish)	C++17	9 / 100	115 ms	24656 KB

fish

#include "fish.h"

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using vi = vector<int>;
using ii = pair<int, int>;
using vll = vector<ll>;

struct AIB {
    int n;
    bool rev;
    vll V;

    AIB(int N, bool RV) : n(N + 1), rev(RV), V(N + 1, 0) {}

    void update(int p, ll v) {
        if(rev) p = n - p - 1;
        ++p;
        while(p < n) {
            V[p] = max(V[p], v);
            p += p & -p;
        }
    }

    ll query(int p) {
        if(rev) p = n - p - 1;
        ++p;
        ll re = 0;
        while(p) {
            re = max(re, V[p]);
            p -= p & -p;
        }
        return re;
    }
};

ll max_weights(int n, int m, vi X, vi Y, vi W) {
    vector<vector<ii> > A(n);
    for(int i = 0; i < m; ++i) 
        A[X[i]].push_back({Y[i], W[i]});
    for(int i = 0; i < n; ++i) {
        sort(A[i].begin(), A[i].end());
    }

    vll DP_tot(n, 0), DP0(n, 0), DP1(n, 0);

    AIB MaPre(n, 0), MaSuf(n, 1);

    ll re = 0;
    for(int i = 0; i < n; ++i) {
        ll rez_min = 0;
        if(i > 1) rez_min = DP_tot[i - 2];
        if(i + 1 < n) {
            for(auto [y, w] : A[i]) { /// urcam, facem 0
                ll re0 = rez_min;
                if(MaPre.query(y - 1) > re0) re0 = MaPre.query(y - 1);

                re0 += w;

                MaPre.update(y, re0);
                DP0[i] = max(DP0[i], re0);
            }
        }

        reverse(A[i].begin(), A[i].end());
        if(i) {
            for(auto [y, w] : A[i]) {
                ll re1 = rez_min;
                if(MaSuf.query(y + 1) > re1) re1 = MaSuf.query(y + 1);

                re1 += w;

                MaSuf.update(y, re1);
                MaPre.update(y, re1);
                DP1[i] = max(DP1[i], re1);
            }
        }

        DP_tot[i] = max(DP0[i], DP1[i]);
        if(i) DP_tot[i] = max(DP_tot[i], DP_tot[i - 1]);
        re = max(re, DP_tot[i]);
    }
    return re;
}

Subtask #1
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	8648 KB	Output is correct
2	Correct	52 ms	9920 KB	Output is correct
3	Correct	4 ms	6492 KB	Output is correct
4	Correct	3 ms	6492 KB	Output is correct
5	Correct	104 ms	16348 KB	Output is correct
6	Correct	115 ms	24656 KB	Output is correct

Subtask #2
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	53 ms	11192 KB	Output is correct
3	Correct	64 ms	12996 KB	Output is correct
4	Correct	43 ms	8644 KB	Output is correct
5	Correct	31 ms	9928 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	344 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	3 ms	6492 KB	Output is correct
11	Correct	3 ms	6488 KB	Output is correct
12	Correct	45 ms	8668 KB	Output is correct
13	Correct	36 ms	9860 KB	Output is correct
14	Correct	44 ms	8552 KB	Output is correct
15	Correct	29 ms	9680 KB	Output is correct
16	Correct	31 ms	8644 KB	Output is correct
17	Correct	48 ms	9736 KB	Output is correct

Subtask #3
0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	6492 KB	Output is correct
2	Correct	4 ms	6488 KB	Output is correct
3	Incorrect	21 ms	8796 KB	1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	0 ms	440 KB	1st lines differ - on the 1st token, expected: '216624184325', found: '194343694717'
10	Halted	0 ms	0 KB	-

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	0 ms	440 KB	1st lines differ - on the 1st token, expected: '216624184325', found: '194343694717'
10	Halted	0 ms	0 KB	-

Subtask #6
0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	0 ms	440 KB	1st lines differ - on the 1st token, expected: '216624184325', found: '194343694717'
10	Halted	0 ms	0 KB	-

Subtask #7
0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	6492 KB	Output is correct
2	Correct	4 ms	6488 KB	Output is correct
3	Incorrect	21 ms	8796 KB	1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
4	Halted	0 ms	0 KB	-

Subtask #8
0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	8648 KB	Output is correct
2	Correct	52 ms	9920 KB	Output is correct
3	Correct	4 ms	6492 KB	Output is correct
4	Correct	3 ms	6492 KB	Output is correct
5	Correct	104 ms	16348 KB	Output is correct
6	Correct	115 ms	24656 KB	Output is correct
7	Correct	0 ms	344 KB	Output is correct
8	Correct	53 ms	11192 KB	Output is correct
9	Correct	64 ms	12996 KB	Output is correct
10	Correct	43 ms	8644 KB	Output is correct
11	Correct	31 ms	9928 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	3 ms	6492 KB	Output is correct
17	Correct	3 ms	6488 KB	Output is correct
18	Correct	45 ms	8668 KB	Output is correct
19	Correct	36 ms	9860 KB	Output is correct
20	Correct	44 ms	8552 KB	Output is correct
21	Correct	29 ms	9680 KB	Output is correct
22	Correct	31 ms	8644 KB	Output is correct
23	Correct	48 ms	9736 KB	Output is correct
24	Correct	3 ms	6492 KB	Output is correct
25	Correct	4 ms	6488 KB	Output is correct
26	Incorrect	21 ms	8796 KB	1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
27	Halted	0 ms	0 KB	-

답안 #1076202

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