oj.uz

Submission #583788

# Submission time Handle Problem Language Result Execution time Memory
583788 2022-06-26T08:08:54 Z jack715 Knapsack (NOI18_knapsack) C++14
100 / 100
 53 ms 2968 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);
                
            }
        }
    }
    cout << dp[s];
}

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

# Verdict Execution time Memory Grader output
1 Correct 1 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 2 ms 340 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 6 ms 340 KB Output is correct
3 Correct 5 ms 340 KB Output is correct
4 Correct 6 ms 340 KB Output is correct
5 Correct 4 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 4 ms 340 KB Output is correct
9 Correct 3 ms 340 KB Output is correct
10 Correct 4 ms 340 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 6 ms 340 KB Output is correct
3 Correct 5 ms 340 KB Output is correct
4 Correct 6 ms 340 KB Output is correct
5 Correct 4 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 4 ms 340 KB Output is correct
9 Correct 3 ms 340 KB Output is correct
10 Correct 4 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 5 ms 340 KB Output is correct
13 Correct 4 ms 340 KB Output is correct
14 Correct 4 ms 340 KB Output is correct
15 Correct 4 ms 340 KB Output is correct
16 Correct 4 ms 340 KB Output is correct
17 Correct 4 ms 340 KB Output is correct
18 Correct 5 ms 340 KB Output is correct
19 Correct 5 ms 340 KB Output is correct
20 Correct 5 ms 340 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 6 ms 340 KB Output is correct
7 Correct 5 ms 340 KB Output is correct
8 Correct 6 ms 340 KB Output is correct
9 Correct 4 ms 340 KB Output is correct
10 Correct 4 ms 432 KB Output is correct
11 Correct 4 ms 340 KB Output is correct
12 Correct 4 ms 340 KB Output is correct
13 Correct 3 ms 340 KB Output is correct
14 Correct 4 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 5 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 4 ms 340 KB Output is correct
20 Correct 4 ms 340 KB Output is correct
21 Correct 4 ms 340 KB Output is correct
22 Correct 5 ms 340 KB Output is correct
23 Correct 5 ms 340 KB Output is correct
24 Correct 5 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 8 ms 340 KB Output is correct
27 Correct 4 ms 432 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 432 KB Output is correct
33 Correct 4 ms 340 KB Output is correct
34 Correct 4 ms 340 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 6 ms 340 KB Output is correct
7 Correct 5 ms 340 KB Output is correct
8 Correct 6 ms 340 KB Output is correct
9 Correct 4 ms 340 KB Output is correct
10 Correct 4 ms 432 KB Output is correct
11 Correct 4 ms 340 KB Output is correct
12 Correct 4 ms 340 KB Output is correct
13 Correct 3 ms 340 KB Output is correct
14 Correct 4 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 5 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 4 ms 340 KB Output is correct
20 Correct 4 ms 340 KB Output is correct
21 Correct 4 ms 340 KB Output is correct
22 Correct 5 ms 340 KB Output is correct
23 Correct 5 ms 340 KB Output is correct
24 Correct 5 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 8 ms 340 KB Output is correct
27 Correct 4 ms 432 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 432 KB Output is correct
33 Correct 4 ms 340 KB Output is correct
34 Correct 4 ms 340 KB Output is correct
35 Correct 30 ms 2580 KB Output is correct
36 Correct 34 ms 2512 KB Output is correct
37 Correct 34 ms 2564 KB Output is correct
38 Correct 35 ms 2352 KB Output is correct
39 Correct 39 ms 2260 KB Output is correct
40 Correct 53 ms 2704 KB Output is correct
41 Correct 43 ms 2844 KB Output is correct
42 Correct 38 ms 2644 KB Output is correct
43 Correct 52 ms 2820 KB Output is correct
44 Correct 52 ms 2812 KB Output is correct
45 Correct 41 ms 2640 KB Output is correct
46 Correct 48 ms 2572 KB Output is correct
47 Correct 50 ms 2968 KB Output is correct
48 Correct 41 ms 2636 KB Output is correct
49 Correct 35 ms 2676 KB Output is correct
50 Correct 46 ms 2364 KB Output is correct