oj.uz

답안 #975168

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
975168 2024-05-04T14:14:57 Z vjudge1 Knapsack (NOI18_knapsack) C++17
100 / 100
 704 ms 161828 KB 
#include<bits/stdc++.h>
using namespace std;

const int MAXS = 2000;
const int MAXITEM = 20000;
const int INF = 2e9;

int S, N;
vector<pair<int, int> > A[MAXS + 5];
vector<pair<int, int> > items;
int DP[MAXITEM + 5][MAXS + 5];

int f(int idx, int cap) {
    if (cap < 0) return -INF;
    if (idx == items.size()) return 0;
    int &ret = DP[idx][cap];
    if (ret != -1) return ret;
    auto [w, v] = items[idx];
    return ret = max(f(idx + 1, cap), f(idx + 1, cap - w) + v);
}

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin >> S >> N;
    for (int i = 0; i < N; i++) {
        int v, w, k;
        cin >> v >> w >> k;
        A[w].push_back({v, k});
    }
    for (int w = 1; w <= MAXS; w++) {
        sort(A[w].begin(), A[w].end());
        int used = MAXS / w + 1;
        while (used != 0 && !A[w].empty()) {
            auto &[v, k] = A[w].back();
            items.push_back({w, v});
            k--;
            used--;
            if (k == 0) A[w].pop_back();
        }
    }
    memset(DP, -1, sizeof DP);
    cout << f(0, S) << endl;
    return 0;
}

Compilation message

knapsack.cpp: In function 'int f(int, int)':
knapsack.cpp:15:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     if (idx == items.size()) return 0;
      |         ~~~~^~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 157268 KB Output is correct
2 Correct 29 ms 157268 KB Output is correct
3 Correct 29 ms 157272 KB Output is correct
4 Correct 30 ms 157264 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 157264 KB Output is correct
2 Correct 32 ms 157728 KB Output is correct
3 Correct 30 ms 157268 KB Output is correct
4 Correct 30 ms 157276 KB Output is correct
5 Correct 29 ms 157264 KB Output is correct
6 Correct 31 ms 157264 KB Output is correct
7 Correct 31 ms 157276 KB Output is correct
8 Correct 32 ms 157264 KB Output is correct
9 Correct 30 ms 157276 KB Output is correct
10 Correct 30 ms 157268 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 157264 KB Output is correct
2 Correct 32 ms 157728 KB Output is correct
3 Correct 30 ms 157268 KB Output is correct
4 Correct 30 ms 157276 KB Output is correct
5 Correct 29 ms 157264 KB Output is correct
6 Correct 31 ms 157264 KB Output is correct
7 Correct 31 ms 157276 KB Output is correct
8 Correct 32 ms 157264 KB Output is correct
9 Correct 30 ms 157276 KB Output is correct
10 Correct 30 ms 157268 KB Output is correct
11 Correct 29 ms 157276 KB Output is correct
12 Correct 32 ms 157272 KB Output is correct
13 Correct 30 ms 157264 KB Output is correct
14 Correct 29 ms 157268 KB Output is correct
15 Correct 30 ms 157716 KB Output is correct
16 Correct 37 ms 157264 KB Output is correct
17 Correct 30 ms 157264 KB Output is correct
18 Correct 31 ms 157268 KB Output is correct
19 Correct 31 ms 157272 KB Output is correct
20 Correct 32 ms 157632 KB Output is correct

Subtask #4
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 157268 KB Output is correct
2 Correct 29 ms 157268 KB Output is correct
3 Correct 29 ms 157272 KB Output is correct
4 Correct 30 ms 157264 KB Output is correct
5 Correct 30 ms 157264 KB Output is correct
6 Correct 32 ms 157728 KB Output is correct
7 Correct 30 ms 157268 KB Output is correct
8 Correct 30 ms 157276 KB Output is correct
9 Correct 29 ms 157264 KB Output is correct
10 Correct 31 ms 157264 KB Output is correct
11 Correct 31 ms 157276 KB Output is correct
12 Correct 32 ms 157264 KB Output is correct
13 Correct 30 ms 157276 KB Output is correct
14 Correct 30 ms 157268 KB Output is correct
15 Correct 29 ms 157276 KB Output is correct
16 Correct 32 ms 157272 KB Output is correct
17 Correct 30 ms 157264 KB Output is correct
18 Correct 29 ms 157268 KB Output is correct
19 Correct 30 ms 157716 KB Output is correct
20 Correct 37 ms 157264 KB Output is correct
21 Correct 30 ms 157264 KB Output is correct
22 Correct 31 ms 157268 KB Output is correct
23 Correct 31 ms 157272 KB Output is correct
24 Correct 32 ms 157632 KB Output is correct
25 Correct 29 ms 157268 KB Output is correct
26 Correct 46 ms 157532 KB Output is correct
27 Correct 31 ms 157268 KB Output is correct
28 Correct 33 ms 157448 KB Output is correct
29 Correct 29 ms 157340 KB Output is correct
30 Correct 38 ms 157520 KB Output is correct
31 Correct 31 ms 157328 KB Output is correct
32 Correct 31 ms 157348 KB Output is correct
33 Correct 30 ms 157336 KB Output is correct
34 Correct 34 ms 157276 KB Output is correct

Subtask #5
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 157268 KB Output is correct
2 Correct 29 ms 157268 KB Output is correct
3 Correct 29 ms 157272 KB Output is correct
4 Correct 30 ms 157264 KB Output is correct
5 Correct 30 ms 157264 KB Output is correct
6 Correct 32 ms 157728 KB Output is correct
7 Correct 30 ms 157268 KB Output is correct
8 Correct 30 ms 157276 KB Output is correct
9 Correct 29 ms 157264 KB Output is correct
10 Correct 31 ms 157264 KB Output is correct
11 Correct 31 ms 157276 KB Output is correct
12 Correct 32 ms 157264 KB Output is correct
13 Correct 30 ms 157276 KB Output is correct
14 Correct 30 ms 157268 KB Output is correct
15 Correct 29 ms 157276 KB Output is correct
16 Correct 32 ms 157272 KB Output is correct
17 Correct 30 ms 157264 KB Output is correct
18 Correct 29 ms 157268 KB Output is correct
19 Correct 30 ms 157716 KB Output is correct
20 Correct 37 ms 157264 KB Output is correct
21 Correct 30 ms 157264 KB Output is correct
22 Correct 31 ms 157268 KB Output is correct
23 Correct 31 ms 157272 KB Output is correct
24 Correct 32 ms 157632 KB Output is correct
25 Correct 29 ms 157268 KB Output is correct
26 Correct 46 ms 157532 KB Output is correct
27 Correct 31 ms 157268 KB Output is correct
28 Correct 33 ms 157448 KB Output is correct
29 Correct 29 ms 157340 KB Output is correct
30 Correct 38 ms 157520 KB Output is correct
31 Correct 31 ms 157328 KB Output is correct
32 Correct 31 ms 157348 KB Output is correct
33 Correct 30 ms 157336 KB Output is correct
34 Correct 34 ms 157276 KB Output is correct
35 Correct 49 ms 159424 KB Output is correct
36 Correct 66 ms 159564 KB Output is correct
37 Correct 67 ms 159548 KB Output is correct
38 Correct 56 ms 159580 KB Output is correct
39 Correct 54 ms 160448 KB Output is correct
40 Correct 704 ms 161828 KB Output is correct
41 Correct 426 ms 160692 KB Output is correct
42 Correct 508 ms 160848 KB Output is correct
43 Correct 693 ms 161232 KB Output is correct
44 Correct 640 ms 161236 KB Output is correct
45 Correct 73 ms 160856 KB Output is correct
46 Correct 53 ms 160204 KB Output is correct
47 Correct 137 ms 160900 KB Output is correct
48 Correct 319 ms 161188 KB Output is correct
49 Correct 52 ms 160372 KB Output is correct
50 Correct 312 ms 160848 KB Output is correct