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Submission #467868

# Submission time Handle Problem Language Result Execution time Memory
467868 2021-08-25T05:32:42 Z Cxrles Knapsack (NOI18_knapsack) C++17
100 / 100
 190 ms 34468 KB 
#include<bits/stdc++.h>
using namespace std;
using ll=long long;
const ll INF=1e9+7;
#define f first
#define s second


int main(){
	ll limit, type;
	cin>>limit>>type;
	map<ll,vector<pair<ll,ll>>> byweight;
	for(int i=0;i<type;i++){
		ll v,w,copy;
		cin>>v>>w>>copy;
		if(w<=limit and copy>0)
		byweight[w].push_back({v,copy});
	}
	
	vector<vector<ll>>dp(byweight.size()+1,vector<ll>(limit+1,-INF));
	dp[0][0]=0;
	 ll at=1;
	for(auto &[w,item]:byweight){
		sort(item.begin(), item.end(),greater<pair<int, int>>());
		for(int i=0;i<=limit;i++){
			dp[at][i]=dp[at-1][i];
			ll copy=0;
			ll type_at=0;
			ll curr=0;
			ll profit =0;
			
			while((copy+1)*w<=i and type_at<item.size()){
				copy++;
				profit+=item[type_at].f;
				if(dp[at-1][i-copy*w]!=-INF)
				dp[at][i]=max(dp[at][i],dp[at-1][i-w*copy]+profit);
				
				curr++;
				if(curr==item[type_at].s){
					curr=0;
					type_at++;
				}
			}
		}
		at++;
	}
	
	cout<<*max_element(dp.back().begin(),dp.back().end())<<endl;
	
	
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:32:35: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |    while((copy+1)*w<=i and type_at<item.size()){
      |                            ~~~~~~~^~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 288 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 1740 KB Output is correct
7 Correct 2 ms 1868 KB Output is correct
8 Correct 2 ms 1740 KB Output is correct
9 Correct 2 ms 1740 KB Output is correct
10 Correct 3 ms 1740 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 1740 KB Output is correct
7 Correct 2 ms 1868 KB Output is correct
8 Correct 2 ms 1740 KB Output is correct
9 Correct 2 ms 1740 KB Output is correct
10 Correct 3 ms 1740 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 4 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 2 ms 1828 KB Output is correct
17 Correct 2 ms 1740 KB Output is correct
18 Correct 3 ms 1828 KB Output is correct
19 Correct 3 ms 1740 KB Output is correct
20 Correct 2 ms 1868 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 288 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 2 ms 1740 KB Output is correct
11 Correct 2 ms 1868 KB Output is correct
12 Correct 2 ms 1740 KB Output is correct
13 Correct 2 ms 1740 KB Output is correct
14 Correct 3 ms 1740 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 4 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 2 ms 1828 KB Output is correct
21 Correct 2 ms 1740 KB Output is correct
22 Correct 3 ms 1828 KB Output is correct
23 Correct 3 ms 1740 KB Output is correct
24 Correct 2 ms 1868 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 6 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 5 ms 1740 KB Output is correct
31 Correct 2 ms 1868 KB Output is correct
32 Correct 3 ms 1740 KB Output is correct
33 Correct 2 ms 1740 KB Output is correct
34 Correct 2 ms 1740 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 288 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 2 ms 1740 KB Output is correct
11 Correct 2 ms 1868 KB Output is correct
12 Correct 2 ms 1740 KB Output is correct
13 Correct 2 ms 1740 KB Output is correct
14 Correct 3 ms 1740 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 4 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 2 ms 1828 KB Output is correct
21 Correct 2 ms 1740 KB Output is correct
22 Correct 3 ms 1828 KB Output is correct
23 Correct 3 ms 1740 KB Output is correct
24 Correct 2 ms 1868 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 6 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 5 ms 1740 KB Output is correct
31 Correct 2 ms 1868 KB Output is correct
32 Correct 3 ms 1740 KB Output is correct
33 Correct 2 ms 1740 KB Output is correct
34 Correct 2 ms 1740 KB Output is correct
35 Correct 82 ms 2524 KB Output is correct
36 Correct 96 ms 2624 KB Output is correct
37 Correct 98 ms 2616 KB Output is correct
38 Correct 96 ms 2548 KB Output is correct
39 Correct 130 ms 2364 KB Output is correct
40 Correct 190 ms 34328 KB Output is correct
41 Correct 149 ms 34468 KB Output is correct
42 Correct 156 ms 34408 KB Output is correct
43 Correct 184 ms 34424 KB Output is correct
44 Correct 168 ms 34276 KB Output is correct
45 Correct 120 ms 5840 KB Output is correct
46 Correct 117 ms 2524 KB Output is correct
47 Correct 135 ms 9284 KB Output is correct
48 Correct 150 ms 18500 KB Output is correct
49 Correct 105 ms 3120 KB Output is correct
50 Correct 142 ms 2972 KB Output is correct