oj.uz

Submission #879116

# Submission time Handle Problem Language Result Execution time Memory
879116 2023-11-26T11:50:07 Z AminMDNZ Knapsack (NOI18_knapsack) C++17
100 / 100
 118 ms 35152 KB 
#include<bits/stdc++.h>
using namespace std;
int main(){
    int n, s, v, w, num;
    cin>>s>>n;
    map<int, vector<pair<int,int>>> by_weight;
    for(int i=0;i<n;i++){
        cin>>v>>w>>num;
        if(w <= s && num > 0) by_weight[w].push_back({v, num});
    }
    vector<vector<long long>> dp(by_weight.size()+1, vector<long long> (s+1, INT_MIN));

    int at = 1;
    dp[0][0] = 0;
    for(auto &[w, item] : by_weight){
        sort(item.begin(), item.end(), greater<pair<int, int>>());
        for(int i=0;i<=s;i++){
            dp[at][i] = dp[at-1][i];
            int ind = 0;
            num = 0;
            int cur_in = 0;
            long long price = 0;
            while(ind < item.size() && w * (num+1) <= i){
                num++; 
                price += item[ind].first;
                if(dp[at-1][i-w * num] != INT_MIN) dp[at][i] = max(dp[at][i], dp[at-1][i-w * num] + price);
                cur_in++;    
                if(cur_in == item[ind].second) cur_in = 0, ind++;
            }            
        }
        at++;
    }
    cout<<*max_element(dp.back().begin(), dp.back().end());
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:23:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |             while(ind < item.size() && w * (num+1) <= i){
      |                   ~~~~^~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 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 1 ms 1708 KB Output is correct
7 Correct 1 ms 2136 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 2 ms 1884 KB Output is correct
10 Correct 1 ms 1884 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 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 1 ms 1708 KB Output is correct
7 Correct 1 ms 2136 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 2 ms 1884 KB Output is correct
10 Correct 1 ms 1884 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 2136 KB Output is correct
17 Correct 2 ms 1880 KB Output is correct
18 Correct 2 ms 1884 KB Output is correct
19 Correct 2 ms 1884 KB Output is correct
20 Correct 2 ms 2052 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 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 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 1708 KB Output is correct
11 Correct 1 ms 2136 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 2 ms 1884 KB Output is correct
14 Correct 1 ms 1884 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 2 ms 2136 KB Output is correct
21 Correct 2 ms 1880 KB Output is correct
22 Correct 2 ms 1884 KB Output is correct
23 Correct 2 ms 1884 KB Output is correct
24 Correct 2 ms 2052 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 2 ms 432 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 2 ms 1884 KB Output is correct
31 Correct 2 ms 2136 KB Output is correct
32 Correct 2 ms 1884 KB Output is correct
33 Correct 2 ms 1884 KB Output is correct
34 Correct 2 ms 1880 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 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 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 1708 KB Output is correct
11 Correct 1 ms 2136 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 2 ms 1884 KB Output is correct
14 Correct 1 ms 1884 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 2 ms 2136 KB Output is correct
21 Correct 2 ms 1880 KB Output is correct
22 Correct 2 ms 1884 KB Output is correct
23 Correct 2 ms 1884 KB Output is correct
24 Correct 2 ms 2052 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 2 ms 432 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 2 ms 1884 KB Output is correct
31 Correct 2 ms 2136 KB Output is correct
32 Correct 2 ms 1884 KB Output is correct
33 Correct 2 ms 1884 KB Output is correct
34 Correct 2 ms 1880 KB Output is correct
35 Correct 51 ms 2260 KB Output is correct
36 Correct 59 ms 2620 KB Output is correct
37 Correct 54 ms 2252 KB Output is correct
38 Correct 58 ms 2632 KB Output is correct
39 Correct 75 ms 3268 KB Output is correct
40 Correct 118 ms 35152 KB Output is correct
41 Correct 104 ms 34388 KB Output is correct
42 Correct 97 ms 34388 KB Output is correct
43 Correct 104 ms 34384 KB Output is correct
44 Correct 101 ms 34388 KB Output is correct
45 Correct 79 ms 6928 KB Output is correct
46 Correct 70 ms 3272 KB Output is correct
47 Correct 85 ms 10068 KB Output is correct
48 Correct 96 ms 19340 KB Output is correct
49 Correct 67 ms 3920 KB Output is correct
50 Correct 81 ms 3920 KB Output is correct