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답안 #581959

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
581959 2022-06-23T08:40:09 Z Belgutei Knapsack (NOI18_knapsack) C++17
100 / 100
 66 ms 2896 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ff first
#define ss second
#define pb push_back
#define IOS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); 

int s,n;
ll val, wei, num;
vector<pair<ll,ll>> p[2005];
vector<ll> v[2005];
ll dp[2005];
ll ans;

int main() {
    IOS
    cin >> s >> n; // s <= 2000
    for(int i = 1; i <= n; i ++) {
        cin >> val >> wei >> num; 
        p[wei].pb({-val, num});
    }
    for(int i = 1; i <= s; i ++) {
        sort(p[i].begin(), p[i].end());
        int tmp = s / i;
        int pos = 0;
        while(tmp > 0 && pos < p[i].size()) {
            if(p[i][pos].ss == 0) {
                pos ++;
                continue;
            }
            tmp --;
            v[i].pb(-p[i][pos].ff);
            p[i][pos].ss --;
        }
    }
    for(int i = 1; i <= s; i ++) { // weight
        for(int j = s; j >= 0; j --) {
            ll tmp = 0;
            for(int k = 0; k < v[i].size(); k ++) {
                if(j - (k + 1) * i < 0) break;
                tmp += v[i][k];
                dp[j] = max(dp[j], dp[j - (k + 1) * i] + tmp);
                ans = max(ans, dp[j]);
            }
        }
    }
    cout << ans;
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:28:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         while(tmp > 0 && pos < p[i].size()) {
      |                          ~~~~^~~~~~~~~~~~~
knapsack.cpp:41:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |             for(int k = 0; k < v[i].size(); k ++) {
      |                            ~~^~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 4 ms 432 KB Output is correct
3 Correct 4 ms 340 KB Output is correct
4 Correct 3 ms 416 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 4 ms 340 KB Output is correct
7 Correct 5 ms 340 KB Output is correct
8 Correct 4 ms 340 KB Output is correct
9 Correct 4 ms 340 KB Output is correct
10 Correct 5 ms 340 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 4 ms 432 KB Output is correct
3 Correct 4 ms 340 KB Output is correct
4 Correct 3 ms 416 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 4 ms 340 KB Output is correct
7 Correct 5 ms 340 KB Output is correct
8 Correct 4 ms 340 KB Output is correct
9 Correct 4 ms 340 KB Output is correct
10 Correct 5 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 9 ms 448 KB Output is correct
13 Correct 5 ms 340 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 4 ms 416 KB Output is correct
16 Correct 7 ms 340 KB Output is correct
17 Correct 4 ms 340 KB Output is correct
18 Correct 4 ms 340 KB Output is correct
19 Correct 3 ms 340 KB Output is correct
20 Correct 4 ms 340 KB Output is correct

Subtask #4
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 4 ms 432 KB Output is correct
7 Correct 4 ms 340 KB Output is correct
8 Correct 3 ms 416 KB Output is correct
9 Correct 3 ms 340 KB Output is correct
10 Correct 4 ms 340 KB Output is correct
11 Correct 5 ms 340 KB Output is correct
12 Correct 4 ms 340 KB Output is correct
13 Correct 4 ms 340 KB Output is correct
14 Correct 5 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 9 ms 448 KB Output is correct
17 Correct 5 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 4 ms 416 KB Output is correct
20 Correct 7 ms 340 KB Output is correct
21 Correct 4 ms 340 KB Output is correct
22 Correct 4 ms 340 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 4 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 7 ms 468 KB Output is correct
27 Correct 4 ms 340 KB Output is correct
28 Correct 4 ms 340 KB Output is correct
29 Correct 4 ms 340 KB Output is correct
30 Correct 4 ms 340 KB Output is correct
31 Correct 5 ms 340 KB Output is correct
32 Correct 4 ms 340 KB Output is correct
33 Correct 5 ms 340 KB Output is correct
34 Correct 7 ms 340 KB Output is correct

Subtask #5
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 4 ms 432 KB Output is correct
7 Correct 4 ms 340 KB Output is correct
8 Correct 3 ms 416 KB Output is correct
9 Correct 3 ms 340 KB Output is correct
10 Correct 4 ms 340 KB Output is correct
11 Correct 5 ms 340 KB Output is correct
12 Correct 4 ms 340 KB Output is correct
13 Correct 4 ms 340 KB Output is correct
14 Correct 5 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 9 ms 448 KB Output is correct
17 Correct 5 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 4 ms 416 KB Output is correct
20 Correct 7 ms 340 KB Output is correct
21 Correct 4 ms 340 KB Output is correct
22 Correct 4 ms 340 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 4 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 7 ms 468 KB Output is correct
27 Correct 4 ms 340 KB Output is correct
28 Correct 4 ms 340 KB Output is correct
29 Correct 4 ms 340 KB Output is correct
30 Correct 4 ms 340 KB Output is correct
31 Correct 5 ms 340 KB Output is correct
32 Correct 4 ms 340 KB Output is correct
33 Correct 5 ms 340 KB Output is correct
34 Correct 7 ms 340 KB Output is correct
35 Correct 32 ms 2560 KB Output is correct
36 Correct 36 ms 2620 KB Output is correct
37 Correct 33 ms 2512 KB Output is correct
38 Correct 37 ms 2316 KB Output is correct
39 Correct 42 ms 2220 KB Output is correct
40 Correct 66 ms 2772 KB Output is correct
41 Correct 44 ms 2748 KB Output is correct
42 Correct 48 ms 2688 KB Output is correct
43 Correct 56 ms 2784 KB Output is correct
44 Correct 55 ms 2804 KB Output is correct
45 Correct 37 ms 2632 KB Output is correct
46 Correct 49 ms 2504 KB Output is correct
47 Correct 43 ms 2896 KB Output is correct
48 Correct 54 ms 2644 KB Output is correct
49 Correct 36 ms 2776 KB Output is correct
50 Correct 46 ms 2260 KB Output is correct