답안 #967850

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
967850 2024-04-23T02:17:43 Z hippo123 Knapsack (NOI18_knapsack) C++17
100 / 100
60 ms 3156 KB
#include <bits/stdc++.h>
 
using namespace std;
#define ll long long
#define pr pair<int, int>
#define f first
#define s second
 
ll n, s;
 
bool cmp(pr a, pr b){
	return a.f> b.f;
}
 
 
 
int main(){
 
	ios::sync_with_stdio(false);
	cin.tie(0);
	cin>>s>>n;
	
	vector<ll> dp(s+1, -1);
	
	vector<vector<pr>> list(2001);
	
	for (int i=0; i<n; i++){
		int vi, wi, ki; cin>>vi>>wi>>ki;
		list[wi].push_back({vi, ki});
	}
	// sort the items per values from top to bottom with the same weight
	for (int i=1; i<=s; i++){
		if(list[i].size()>0) sort(list[i].begin(), list[i].end(), cmp);
	}
	// now using the standard knapsack to calculate the problem
	dp[0]=0;
	

	
	for (int i=1; i<=s; i++){ // convert to weight dim
		
		if(list[i].size()<=0) continue;   // empty weight item
 
		int weight=0; 
		
		for (int j=0; j<(int)list[i].size(); j++){ // this is the same weight, value group #
			for (int j1=0; j1<list[i][j].s && weight<=s; j1++){			
				weight+=i; // total weight until this point
				for (int k=s; k>=i; k--){
					if(dp[k-i]>=0 ) {
						dp[k]=max(dp[k], dp[k-i]+list[i][j].f);
					}
				}
			}
		}

	}
	ll mval=0;
	for (int i=0; i<=s; i++) mval=max(mval, dp[i]);
	cout<<mval;
	
}
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 3 ms 512 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 600 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 3 ms 512 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 600 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 25 ms 1492 KB Output is correct
36 Correct 30 ms 1488 KB Output is correct
37 Correct 27 ms 2516 KB Output is correct
38 Correct 24 ms 2492 KB Output is correct
39 Correct 28 ms 2892 KB Output is correct
40 Correct 60 ms 2908 KB Output is correct
41 Correct 42 ms 2708 KB Output is correct
42 Correct 37 ms 2652 KB Output is correct
43 Correct 47 ms 2652 KB Output is correct
44 Correct 51 ms 3156 KB Output is correct
45 Correct 29 ms 2936 KB Output is correct
46 Correct 28 ms 2528 KB Output is correct
47 Correct 31 ms 2896 KB Output is correct
48 Correct 39 ms 2716 KB Output is correct
49 Correct 21 ms 2900 KB Output is correct
50 Correct 42 ms 2644 KB Output is correct