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Submission #946729

# Submission time Handle Problem Language Result Execution time Memory
946729 2024-03-15T01:15:03 Z hellowinchang1029 Knapsack (NOI18_knapsack) C++17
100 / 100
 55 ms 5580 KB 
#include<bits/stdc++.h>
using namespace std;
 
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vvi vector<vector<int>>
#define vt vector
#define arr array
#define ALL(x) begin(x), end(x)
#define rALL(x) rbegin(x), rend(x)
const int MOD1=998244353;
const int MOD2=1e9+7;
const ll LINF=1e18;
const int INF=1e9;

int main(){
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    
    ll s, n;
    cin>>s>>n;
    map<ll, vt<pll>> items;
    for (ll i=0; i<n; i++){
    	ll v, w, k;
    	cin>>v>>w>>k;
    	items[w].pb({v, k});
    }
    vt<ll> dp(s+1, 0);
    vt<pll> use_items;
    for (ll i=1; i<=s; i++){
    	if (!items[i].size()) continue;
    	sort(rALL(items[i]));
    	for (ll j=0, id=0; j<=(s/i) && id<items[i].size(); j++){
    		use_items.pb({i, items[i][id].first});
    		if (!(--items[i][id].second)) id++;
    	}
    }
    for (pll item : use_items){
    	for (ll j=s; j>=item.first; j--){
    		dp[j]=max(dp[j], dp[j-item.first]+item.second);
    	}
    }
    cout<<dp[s]<<'\n';
    
    return 0;
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:35:39: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |      for (ll j=0, id=0; j<=(s/i) && id<items[i].size(); j++){
      |                                     ~~^~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# 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 0 ms 348 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 456 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 600 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 456 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 600 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 856 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct

Subtask #4
24.0 / 24.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 456 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 0 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 856 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 3 ms 660 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 2 ms 852 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 624 KB Output is correct

Subtask #5
27.0 / 27.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 456 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 0 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 856 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 3 ms 660 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 2 ms 852 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 624 KB Output is correct
35 Correct 22 ms 3288 KB Output is correct
36 Correct 28 ms 3544 KB Output is correct
37 Correct 26 ms 3288 KB Output is correct
38 Correct 23 ms 3620 KB Output is correct
39 Correct 29 ms 4364 KB Output is correct
40 Correct 55 ms 5580 KB Output is correct
41 Correct 40 ms 4700 KB Output is correct
42 Correct 41 ms 4700 KB Output is correct
43 Correct 49 ms 4996 KB Output is correct
44 Correct 49 ms 4812 KB Output is correct
45 Correct 37 ms 4692 KB Output is correct
46 Correct 26 ms 4056 KB Output is correct
47 Correct 32 ms 4944 KB Output is correct
48 Correct 41 ms 4948 KB Output is correct
49 Correct 26 ms 4432 KB Output is correct
50 Correct 40 ms 4436 KB Output is correct