oj.uz

Submission #676477

# Submission time Handle Problem Language Result Execution time Memory
676477 2022-12-31T03:34:52 Z penguin133 Knapsack (NOI18_knapsack) C++17
100 / 100
 455 ms 130776 KB 
#include <bits/stdc++.h>
using namespace std;
vector<pair<int,int> >v[2005];
vector<pair<int ,int> >ans;
int n,s;
int dp[16005][2005];
int c(int i, int w){
	if(i >= ans.size())return 0;
	else if(dp[i][w] != -1)return dp[i][w];
	if(w >= ans[i].first)return dp[i][w] = max(c(i+1, w-ans[i].first) + ans[i].second, c(i+1, w));
	else return dp[i][w] = c(i+1, w);
}
int main(){
	ios::sync_with_stdio(0);cin.tie(0);
	memset(dp, -1, sizeof(dp));
	cin >> s >> n;
	for(int i=1;i<=n;i++){
		int a,b,c;
		cin >> a >> b >> c;
		v[b].push_back(make_pair(a,c));
	}
	for(int i=1;i<=s;i++){
		sort(v[i].begin(), v[i].end(), greater<pair<int, int> >());
		int cnt = 0;
		for(int j=0;j<v[i].size();j++){
			if(cnt >= s/i)break;
			for(int k=0;k<min(s/i-cnt, v[i][j].second);k++)ans.push_back(make_pair(i, v[i][j].first));
			cnt = min(s/i, cnt + v[i][j].second);
		}
	}
	//for(int i=0;i<ans.size();i++)cout << ans[i].first << " " << ans[i].second << '\n';
	cout << c(0, s);
}

Compilation message

knapsack.cpp: In function 'int c(int, int)':
knapsack.cpp:8:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |  if(i >= ans.size())return 0;
      |     ~~^~~~~~~~~~~~~
knapsack.cpp: In function 'int main()':
knapsack.cpp:25:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |   for(int j=0;j<v[i].size();j++){
      |               ~^~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 125836 KB Output is correct
2 Correct 46 ms 125836 KB Output is correct
3 Correct 46 ms 125872 KB Output is correct
4 Correct 47 ms 125964 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 125892 KB Output is correct
2 Correct 49 ms 125908 KB Output is correct
3 Correct 48 ms 125852 KB Output is correct
4 Correct 48 ms 125944 KB Output is correct
5 Correct 47 ms 125916 KB Output is correct
6 Correct 55 ms 125924 KB Output is correct
7 Correct 49 ms 125932 KB Output is correct
8 Correct 51 ms 125920 KB Output is correct
9 Correct 51 ms 125912 KB Output is correct
10 Correct 53 ms 125936 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 125892 KB Output is correct
2 Correct 49 ms 125908 KB Output is correct
3 Correct 48 ms 125852 KB Output is correct
4 Correct 48 ms 125944 KB Output is correct
5 Correct 47 ms 125916 KB Output is correct
6 Correct 55 ms 125924 KB Output is correct
7 Correct 49 ms 125932 KB Output is correct
8 Correct 51 ms 125920 KB Output is correct
9 Correct 51 ms 125912 KB Output is correct
10 Correct 53 ms 125936 KB Output is correct
11 Correct 46 ms 126060 KB Output is correct
12 Correct 53 ms 126028 KB Output is correct
13 Correct 47 ms 125948 KB Output is correct
14 Correct 45 ms 125892 KB Output is correct
15 Correct 47 ms 125828 KB Output is correct
16 Correct 50 ms 126012 KB Output is correct
17 Correct 48 ms 125920 KB Output is correct
18 Correct 49 ms 125848 KB Output is correct
19 Correct 54 ms 125912 KB Output is correct
20 Correct 57 ms 125900 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 125836 KB Output is correct
2 Correct 46 ms 125836 KB Output is correct
3 Correct 46 ms 125872 KB Output is correct
4 Correct 47 ms 125964 KB Output is correct
5 Correct 53 ms 125892 KB Output is correct
6 Correct 49 ms 125908 KB Output is correct
7 Correct 48 ms 125852 KB Output is correct
8 Correct 48 ms 125944 KB Output is correct
9 Correct 47 ms 125916 KB Output is correct
10 Correct 55 ms 125924 KB Output is correct
11 Correct 49 ms 125932 KB Output is correct
12 Correct 51 ms 125920 KB Output is correct
13 Correct 51 ms 125912 KB Output is correct
14 Correct 53 ms 125936 KB Output is correct
15 Correct 46 ms 126060 KB Output is correct
16 Correct 53 ms 126028 KB Output is correct
17 Correct 47 ms 125948 KB Output is correct
18 Correct 45 ms 125892 KB Output is correct
19 Correct 47 ms 125828 KB Output is correct
20 Correct 50 ms 126012 KB Output is correct
21 Correct 48 ms 125920 KB Output is correct
22 Correct 49 ms 125848 KB Output is correct
23 Correct 54 ms 125912 KB Output is correct
24 Correct 57 ms 125900 KB Output is correct
25 Correct 47 ms 125900 KB Output is correct
26 Correct 79 ms 126136 KB Output is correct
27 Correct 49 ms 125944 KB Output is correct
28 Correct 47 ms 125888 KB Output is correct
29 Correct 48 ms 125872 KB Output is correct
30 Correct 55 ms 125944 KB Output is correct
31 Correct 48 ms 125952 KB Output is correct
32 Correct 51 ms 125900 KB Output is correct
33 Correct 59 ms 125884 KB Output is correct
34 Correct 55 ms 125936 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 125836 KB Output is correct
2 Correct 46 ms 125836 KB Output is correct
3 Correct 46 ms 125872 KB Output is correct
4 Correct 47 ms 125964 KB Output is correct
5 Correct 53 ms 125892 KB Output is correct
6 Correct 49 ms 125908 KB Output is correct
7 Correct 48 ms 125852 KB Output is correct
8 Correct 48 ms 125944 KB Output is correct
9 Correct 47 ms 125916 KB Output is correct
10 Correct 55 ms 125924 KB Output is correct
11 Correct 49 ms 125932 KB Output is correct
12 Correct 51 ms 125920 KB Output is correct
13 Correct 51 ms 125912 KB Output is correct
14 Correct 53 ms 125936 KB Output is correct
15 Correct 46 ms 126060 KB Output is correct
16 Correct 53 ms 126028 KB Output is correct
17 Correct 47 ms 125948 KB Output is correct
18 Correct 45 ms 125892 KB Output is correct
19 Correct 47 ms 125828 KB Output is correct
20 Correct 50 ms 126012 KB Output is correct
21 Correct 48 ms 125920 KB Output is correct
22 Correct 49 ms 125848 KB Output is correct
23 Correct 54 ms 125912 KB Output is correct
24 Correct 57 ms 125900 KB Output is correct
25 Correct 47 ms 125900 KB Output is correct
26 Correct 79 ms 126136 KB Output is correct
27 Correct 49 ms 125944 KB Output is correct
28 Correct 47 ms 125888 KB Output is correct
29 Correct 48 ms 125872 KB Output is correct
30 Correct 55 ms 125944 KB Output is correct
31 Correct 48 ms 125952 KB Output is correct
32 Correct 51 ms 125900 KB Output is correct
33 Correct 59 ms 125884 KB Output is correct
34 Correct 55 ms 125936 KB Output is correct
35 Correct 72 ms 128088 KB Output is correct
36 Correct 112 ms 128376 KB Output is correct
37 Correct 107 ms 128028 KB Output is correct
38 Correct 78 ms 128264 KB Output is correct
39 Correct 84 ms 128956 KB Output is correct
40 Correct 435 ms 130776 KB Output is correct
41 Correct 286 ms 129348 KB Output is correct
42 Correct 307 ms 129408 KB Output is correct
43 Correct 455 ms 129968 KB Output is correct
44 Correct 420 ms 129920 KB Output is correct
45 Correct 115 ms 129512 KB Output is correct
46 Correct 77 ms 128812 KB Output is correct
47 Correct 143 ms 129516 KB Output is correct
48 Correct 241 ms 129740 KB Output is correct
49 Correct 77 ms 128972 KB Output is correct
50 Correct 269 ms 129816 KB Output is correct