답안 #679660

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
679660	2023-01-08T20:27:32 Z	nicolexxuu	Knapsack (NOI18_knapsack)	C++17	100 / 100	127 ms	17508 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	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 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	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 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	3 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	1 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	1 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	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 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	3 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 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	1 ms	980 KB	Output is correct
24	Correct	1 ms	980 KB	Output is correct
25	Correct	0 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	1 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	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 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	3 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 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	1 ms	980 KB	Output is correct
24	Correct	1 ms	980 KB	Output is correct
25	Correct	0 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	1 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	60 ms	1888 KB	Output is correct
36	Correct	69 ms	1876 KB	Output is correct
37	Correct	67 ms	1928 KB	Output is correct
38	Correct	71 ms	1476 KB	Output is correct
39	Correct	88 ms	1356 KB	Output is correct
40	Correct	127 ms	17456 KB	Output is correct
41	Correct	107 ms	17348 KB	Output is correct
42	Correct	108 ms	17508 KB	Output is correct
43	Correct	107 ms	17476 KB	Output is correct
44	Correct	108 ms	17356 KB	Output is correct
45	Correct	93 ms	3152 KB	Output is correct
46	Correct	86 ms	1920 KB	Output is correct
47	Correct	113 ms	4788 KB	Output is correct
48	Correct	108 ms	9448 KB	Output is correct
49	Correct	80 ms	1680 KB	Output is correct
50	Correct	96 ms	1612 KB	Output is correct

답안 #679660

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