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Submission #899964

# Submission time Handle Problem Language Result Execution time Memory
899964 2024-01-07T11:40:02 Z KN200711 Knapsack (NOI18_knapsack) C++14
100 / 100
 48 ms 3676 KB 
# include <bits/stdc++.h>
# define ll long long
# define ld long double
# define fi first
# define se second
# define pll pair<ll, ll>
# define pdd pair<ld, ld>
# define pii pair<int, int>
using namespace std;

vector<pii> V[2001];
ll dp[2001];

int main() {
	int S, N;
	scanf("%d %d", &S, &N);
	for(int i=1;i<=N;i++) {
		int a, b, c;
		scanf("%d %d %d", &a, &b, &c);
		V[b].push_back({a, c});
	}
	for(int i=1;i<=S;i++) {
		sort(V[i].begin(), V[i].end());
		int cnt = 0;
		while(V[i].size() && cnt <= S / i) {
			pii G = V[i].back();
			V[i].back().se--;
			if(V[i].back().se == 0) V[i].pop_back();
			
			for(int d=S;d>=i;d--) {
				dp[d] = max(dp[d], dp[d - i] + G.fi);
			}
			cnt++;
		}
	}
	ll ans = 0ll;
	for(int i=0;i<=S;i++) ans = max(ans, dp[i]);
	printf("%lld\n", ans);
	return 0;
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |  scanf("%d %d", &S, &N);
      |  ~~~~~^~~~~~~~~~~~~~~~~
knapsack.cpp:19:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |   scanf("%d %d %d", &a, &b, &c);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 344 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 1 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 344 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 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 2 ms 504 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 488 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

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 1 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 1 ms 344 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 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 504 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 488 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 488 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 488 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 1 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 1 ms 344 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 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 504 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 488 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 488 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 488 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 32 ms 2516 KB Output is correct
36 Correct 30 ms 2512 KB Output is correct
37 Correct 29 ms 2512 KB Output is correct
38 Correct 26 ms 2896 KB Output is correct
39 Correct 30 ms 3524 KB Output is correct
40 Correct 48 ms 3672 KB Output is correct
41 Correct 36 ms 2812 KB Output is correct
42 Correct 37 ms 2904 KB Output is correct
43 Correct 46 ms 2872 KB Output is correct
44 Correct 46 ms 2880 KB Output is correct
45 Correct 28 ms 3676 KB Output is correct
46 Correct 29 ms 3180 KB Output is correct
47 Correct 31 ms 3664 KB Output is correct
48 Correct 36 ms 3672 KB Output is correct
49 Correct 27 ms 3420 KB Output is correct
50 Correct 39 ms 3380 KB Output is correct