답안 #679663

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
679663	2023-01-08T20:28:26 Z	nicolexxuu	Knapsack (NOI18_knapsack)	C++17	100 / 100	138 ms	17484 KB

knapsack

#include <bits/stdc++.h>

using namespace std;

int main() {
	int S, N;
	cin >> S >> N;
	
	map<int, vector<pair<int, int>>> by_weight;
	for(int t = 0; t < N; t++) {
		int V, W, K;
		cin >> V >> W >> K;
		by_weight[W].push_back({V, K});
	}
	
	vector<vector<int>> dp(by_weight.size()+1, vector<int>(S+1));
	
	int res = 0;
	int i = 1;
	for(auto hi : by_weight) {
		auto w = hi.first;
		auto items = hi.second;
		sort(items.begin(), items.end(), greater<pair<int, int>>());
		for(int s = 1; s <= S; s++) {
			dp[i][s] = dp[i-1][s];
			
			int curr_i = 0, curr_cnt = 0, val = 0;
			for(int cnt = 1; cnt * w <= s && curr_i < items.size(); cnt++) {
				val += items[curr_i].first;
				if(++curr_cnt == items[curr_i].second) {
					curr_cnt = 0;
					curr_i++;
				}
				dp[i][s] = max(dp[i][s], dp[i-1][s-cnt*w] + val);
			}
		}
		
		res = max(dp[i][S], res);
		i++;
	}
	
	cout << res << endl;
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:28:44: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |    for(int cnt = 1; cnt * w <= s && curr_i < items.size(); cnt++) {
      |                                     ~~~~~~~^~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct

Subtask #2
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	2 ms	980 KB	Output is correct
7	Correct	1 ms	980 KB	Output is correct
8	Correct	1 ms	980 KB	Output is correct
9	Correct	1 ms	980 KB	Output is correct
10	Correct	1 ms	980 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	2 ms	980 KB	Output is correct
7	Correct	1 ms	980 KB	Output is correct
8	Correct	1 ms	980 KB	Output is correct
9	Correct	1 ms	980 KB	Output is correct
10	Correct	1 ms	980 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	2 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	1 ms	980 KB	Output is correct
17	Correct	1 ms	980 KB	Output is correct
18	Correct	1 ms	980 KB	Output is correct
19	Correct	2 ms	980 KB	Output is correct
20	Correct	1 ms	980 KB	Output is correct

Subtask #4
24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	2 ms	980 KB	Output is correct
11	Correct	1 ms	980 KB	Output is correct
12	Correct	1 ms	980 KB	Output is correct
13	Correct	1 ms	980 KB	Output is correct
14	Correct	1 ms	980 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	2 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	980 KB	Output is correct
21	Correct	1 ms	980 KB	Output is correct
22	Correct	1 ms	980 KB	Output is correct
23	Correct	2 ms	980 KB	Output is correct
24	Correct	1 ms	980 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	4 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	2 ms	980 KB	Output is correct
31	Correct	2 ms	980 KB	Output is correct
32	Correct	1 ms	980 KB	Output is correct
33	Correct	1 ms	980 KB	Output is correct
34	Correct	2 ms	980 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	2 ms	980 KB	Output is correct
11	Correct	1 ms	980 KB	Output is correct
12	Correct	1 ms	980 KB	Output is correct
13	Correct	1 ms	980 KB	Output is correct
14	Correct	1 ms	980 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	2 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	980 KB	Output is correct
21	Correct	1 ms	980 KB	Output is correct
22	Correct	1 ms	980 KB	Output is correct
23	Correct	2 ms	980 KB	Output is correct
24	Correct	1 ms	980 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	4 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	2 ms	980 KB	Output is correct
31	Correct	2 ms	980 KB	Output is correct
32	Correct	1 ms	980 KB	Output is correct
33	Correct	1 ms	980 KB	Output is correct
34	Correct	2 ms	980 KB	Output is correct
35	Correct	63 ms	2732 KB	Output is correct
36	Correct	92 ms	2732 KB	Output is correct
37	Correct	64 ms	2668 KB	Output is correct
38	Correct	73 ms	1560 KB	Output is correct
39	Correct	95 ms	1596 KB	Output is correct
40	Correct	138 ms	17436 KB	Output is correct
41	Correct	108 ms	17404 KB	Output is correct
42	Correct	103 ms	17392 KB	Output is correct
43	Correct	109 ms	17460 KB	Output is correct
44	Correct	112 ms	17484 KB	Output is correct
45	Correct	95 ms	3160 KB	Output is correct
46	Correct	87 ms	2752 KB	Output is correct
47	Correct	99 ms	4700 KB	Output is correct
48	Correct	112 ms	9412 KB	Output is correct
49	Correct	84 ms	1780 KB	Output is correct
50	Correct	102 ms	1624 KB	Output is correct

답안 #679663

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 17.0 / 17.0

Subtask #3 20.0 / 20.0

Subtask #4 24.0 / 24.0

Subtask #5 27.0 / 27.0

Subtask #1
12.0 / 12.0

Subtask #2
17.0 / 17.0

Subtask #3
20.0 / 20.0

Subtask #4
24.0 / 24.0

Subtask #5
27.0 / 27.0