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Submission #963169

# Submission time Handle Problem Language Result Execution time Memory
963169 2024-04-14T16:08:18 Z Quanmapne Knapsack (NOI18_knapsack) C++14
100 / 100
 54 ms 7332 KB 
#include<bits/stdc++.h>
#define ll long long
#define file "knapsack"
using namespace std;
const int maxN = 1e5 + 5;
int t, n, s;
int v[maxN], w[maxN], k[maxN];
ll dp[2005];
vector< pair<int, int> > obj[maxN];

void solve(){
    for (int i = 1; i <= s; ++i){
        if (obj[i].size() == 0)
            continue;

        sort(obj[i].begin(), obj[i].end(), greater<pair<int, int>>());
        int id = 0;

        for (int j = 0; j * i < s; ++j){

            if (id >= obj[i].size())
                break;

            for (int f = s; f >= i; --f){
                    dp[f] = max(dp[f], dp[f - i] + obj[i][id].first);
            }
            --obj[i][id].second;
            if (obj[i][id].second == 0)
                ++id;
        }
    }
    cout << dp[s];
}

signed main(){
//    freopen(file".inp", "r", stdin);
//    freopen(file".out", "w", stdout);
    ios_base::sync_with_stdio(false); cin.tie(0);
    t = 1;
    while (t){
        cin >> s >> n;
        for (int i = 1; i <= n; ++i){
            cin >> v[i] >> w[i] >> k[i];
            obj[w[i]].push_back({v[i], k[i]});
        }

        solve();

        --t;
    }

    return 0;
}

Compilation message

knapsack.cpp: In function 'void solve()':
knapsack.cpp:21:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |             if (id >= obj[i].size())
      |                 ~~~^~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2648 KB Output is correct
2 Correct 1 ms 2648 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2808 KB Output is correct
4 Correct 1 ms 2904 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2808 KB Output is correct
4 Correct 1 ms 2904 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 2 ms 2656 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2648 KB Output is correct
15 Correct 1 ms 2816 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2656 KB Output is correct
18 Correct 1 ms 2656 KB Output is correct
19 Correct 1 ms 2660 KB Output is correct
20 Correct 1 ms 2660 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2648 KB Output is correct
2 Correct 1 ms 2648 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2808 KB Output is correct
8 Correct 1 ms 2904 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2652 KB Output is correct
16 Correct 2 ms 2656 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 1 ms 2648 KB Output is correct
19 Correct 1 ms 2816 KB Output is correct
20 Correct 1 ms 2652 KB Output is correct
21 Correct 1 ms 2656 KB Output is correct
22 Correct 1 ms 2656 KB Output is correct
23 Correct 1 ms 2660 KB Output is correct
24 Correct 1 ms 2660 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 4 ms 2652 KB Output is correct
27 Correct 1 ms 2652 KB Output is correct
28 Correct 1 ms 2652 KB Output is correct
29 Correct 1 ms 2652 KB Output is correct
30 Correct 2 ms 2648 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 1 ms 2656 KB Output is correct
33 Correct 1 ms 2652 KB Output is correct
34 Correct 1 ms 2652 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2648 KB Output is correct
2 Correct 1 ms 2648 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2808 KB Output is correct
8 Correct 1 ms 2904 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2652 KB Output is correct
16 Correct 2 ms 2656 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 1 ms 2648 KB Output is correct
19 Correct 1 ms 2816 KB Output is correct
20 Correct 1 ms 2652 KB Output is correct
21 Correct 1 ms 2656 KB Output is correct
22 Correct 1 ms 2656 KB Output is correct
23 Correct 1 ms 2660 KB Output is correct
24 Correct 1 ms 2660 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 4 ms 2652 KB Output is correct
27 Correct 1 ms 2652 KB Output is correct
28 Correct 1 ms 2652 KB Output is correct
29 Correct 1 ms 2652 KB Output is correct
30 Correct 2 ms 2648 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 1 ms 2656 KB Output is correct
33 Correct 1 ms 2652 KB Output is correct
34 Correct 1 ms 2652 KB Output is correct
35 Correct 22 ms 5852 KB Output is correct
36 Correct 27 ms 6360 KB Output is correct
37 Correct 32 ms 5920 KB Output is correct
38 Correct 23 ms 6112 KB Output is correct
39 Correct 28 ms 6860 KB Output is correct
40 Correct 54 ms 7228 KB Output is correct
41 Correct 40 ms 6236 KB Output is correct
42 Correct 34 ms 6492 KB Output is correct
43 Correct 52 ms 6488 KB Output is correct
44 Correct 53 ms 6492 KB Output is correct
45 Correct 28 ms 7204 KB Output is correct
46 Correct 32 ms 7012 KB Output is correct
47 Correct 28 ms 7332 KB Output is correct
48 Correct 35 ms 7000 KB Output is correct
49 Correct 24 ms 6992 KB Output is correct
50 Correct 41 ms 6748 KB Output is correct