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Submission #726628

# Submission time Handle Problem Language Result Execution time Memory
726628 2023-04-19T07:03:25 Z Azther0z Knapsack (NOI18_knapsack) C++11
100 / 100
 149 ms 35188 KB 
#include <bits/stdc++.h>
using namespace std;
struct ITEM
{
	int value,copy;
	bool operator<(const ITEM item)
	{
		if(value!=item.value) return value>item.value;
		return copy>item.copy;
	}
};
int main()
{
	int s,n;
	cin >> s >> n;
	map<int,vector<ITEM>> weight;
	for(int i=0;i<n;i++)
	{
		int v,w,k;
		cin >> v >> w >> k;
		weight[w].push_back({v,k});
	}
	long long result=0;
	vector<vector<long long>> dp(weight.size()+1,vector<long long>(s+1,-1));
	dp[0][0]=0;
	int at=1;
	for(auto &ww:weight)
	{
		int w=ww.first;
		vector<ITEM> item=ww.second;
		sort(item.begin(),item.end());
		for(int i=0;i<=s;i++)
		{
			dp[at][i]=dp[at-1][i];
			int copy=0,idx=0,use=0;
			long long value=0;
			while((copy+1)*w<=i&&idx<item.size())
			{
				copy++;
				value+=item[idx].value;
				if(dp[at-1][i-copy*w]!=-1)
					dp[at][i]=max(dp[at][i],dp[at-1][i-copy*w]+value);
				result=max(result,dp[at][i]);
				use++;
				if(use==item[idx].copy)
				{
					use=0;
					idx++;
				}
			}
		}
		at++;
	}
	cout << result;
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:37:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ITEM>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |    while((copy+1)*w<=i&&idx<item.size())
      |                         ~~~^~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 1748 KB Output is correct
7 Correct 3 ms 1764 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 1748 KB Output is correct
7 Correct 3 ms 1764 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 1748 KB Output is correct
17 Correct 2 ms 1748 KB Output is correct
18 Correct 2 ms 1784 KB Output is correct
19 Correct 2 ms 1748 KB Output is correct
20 Correct 2 ms 1748 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct
11 Correct 3 ms 1764 KB Output is correct
12 Correct 2 ms 1748 KB Output is correct
13 Correct 1 ms 1748 KB Output is correct
14 Correct 2 ms 1748 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2 ms 1748 KB Output is correct
21 Correct 2 ms 1748 KB Output is correct
22 Correct 2 ms 1784 KB Output is correct
23 Correct 2 ms 1748 KB Output is correct
24 Correct 2 ms 1748 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 296 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 3 ms 1748 KB Output is correct
31 Correct 2 ms 1832 KB Output is correct
32 Correct 2 ms 1712 KB Output is correct
33 Correct 3 ms 1748 KB Output is correct
34 Correct 3 ms 1748 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct
11 Correct 3 ms 1764 KB Output is correct
12 Correct 2 ms 1748 KB Output is correct
13 Correct 1 ms 1748 KB Output is correct
14 Correct 2 ms 1748 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2 ms 1748 KB Output is correct
21 Correct 2 ms 1748 KB Output is correct
22 Correct 2 ms 1784 KB Output is correct
23 Correct 2 ms 1748 KB Output is correct
24 Correct 2 ms 1748 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 296 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 3 ms 1748 KB Output is correct
31 Correct 2 ms 1832 KB Output is correct
32 Correct 2 ms 1712 KB Output is correct
33 Correct 3 ms 1748 KB Output is correct
34 Correct 3 ms 1748 KB Output is correct
35 Correct 66 ms 3052 KB Output is correct
36 Correct 82 ms 3224 KB Output is correct
37 Correct 64 ms 2952 KB Output is correct
38 Correct 77 ms 2660 KB Output is correct
39 Correct 94 ms 3492 KB Output is correct
40 Correct 149 ms 35188 KB Output is correct
41 Correct 116 ms 34420 KB Output is correct
42 Correct 131 ms 34480 KB Output is correct
43 Correct 137 ms 34396 KB Output is correct
44 Correct 127 ms 34236 KB Output is correct
45 Correct 102 ms 6816 KB Output is correct
46 Correct 93 ms 3840 KB Output is correct
47 Correct 103 ms 9956 KB Output is correct
48 Correct 120 ms 19240 KB Output is correct
49 Correct 86 ms 3884 KB Output is correct
50 Correct 127 ms 3984 KB Output is correct