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Submission #919707

# Submission time Handle Problem Language Result Execution time Memory
919707 2024-02-01T13:41:40 Z ByeWorld Knapsack (NOI18_knapsack) C++14
100 / 100
 41 ms 7308 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops")
#define bupol __builtin_popcount
#define int long long 
#define ll long long
#define ld long double
#define fi first
#define se second
#define pb push_back
#define lf (id<<1)
#define rg ((id<<1)|1)
#define md ((l+r)>>1)
using namespace std;
const int MAXN = 1e5+10;
const int MAXK = 2010;
const int LOG = 20;
const int MOD = 1e9+7;
const int SQRT = 520;
const int INF = 1e18;
typedef pair<int,int> pii;
typedef pair<int,pii> ipii;

int n, s;
int v[MAXN], w[MAXN], k[MAXN];
int dp[MAXK];
vector <pii> val[MAXK];

signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> s >> n;
    for(int i=1; i<=n; i++){
        cin >> v[i] >> w[i] >> k[i];
        val[w[i]].pb({v[i], k[i]});
    }
    for(int i=1; i<=s; i++) dp[i] = -INF;
    for(int i=1; i<=s; i++){
        sort(val[i].rbegin(), val[i].rend());

        int tot = 0;
        for(auto [v, k] : val[i]){
            for(int p=1; p<=k && tot<=s; p++){
                for(int cur=s; cur>=i; cur--){ // build cur
                    dp[cur] = max(dp[cur], dp[cur-i]+v);
                }
                tot += i;
            }
        }
    }
    // for(int i=1; i<=s; i++){
    //     cout << i << ' '<< dp[i] << " dp\n";
    // }
    int mx = -INF;
    for(int i=1; i<=s; i++){
        mx = max(mx, dp[i]);
    }
    cout << mx << '\n';
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:40:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   40 |         for(auto [v, k] : val[i]){
      |                  ^

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2552 KB Output is correct
12 Correct 2 ms 2392 KB Output is correct
13 Correct 1 ms 2648 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2552 KB Output is correct
16 Correct 2 ms 2392 KB Output is correct
17 Correct 1 ms 2648 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct
21 Correct 1 ms 2392 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2392 KB Output is correct
24 Correct 1 ms 2392 KB Output is correct
25 Correct 1 ms 2392 KB Output is correct
26 Correct 3 ms 2396 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 2 ms 2552 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2392 KB Output is correct
34 Correct 2 ms 2392 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2552 KB Output is correct
16 Correct 2 ms 2392 KB Output is correct
17 Correct 1 ms 2648 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct
21 Correct 1 ms 2392 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2392 KB Output is correct
24 Correct 1 ms 2392 KB Output is correct
25 Correct 1 ms 2392 KB Output is correct
26 Correct 3 ms 2396 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 2 ms 2552 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2392 KB Output is correct
34 Correct 2 ms 2392 KB Output is correct
35 Correct 22 ms 4820 KB Output is correct
36 Correct 25 ms 4836 KB Output is correct
37 Correct 26 ms 5592 KB Output is correct
38 Correct 30 ms 6380 KB Output is correct
39 Correct 27 ms 6656 KB Output is correct
40 Correct 41 ms 7000 KB Output is correct
41 Correct 30 ms 6488 KB Output is correct
42 Correct 30 ms 6492 KB Output is correct
43 Correct 36 ms 6492 KB Output is correct
44 Correct 36 ms 6488 KB Output is correct
45 Correct 27 ms 7248 KB Output is correct
46 Correct 28 ms 6356 KB Output is correct
47 Correct 29 ms 7308 KB Output is correct
48 Correct 32 ms 7208 KB Output is correct
49 Correct 25 ms 6992 KB Output is correct
50 Correct 34 ms 6676 KB Output is correct