oj.uz

답안 #976442

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
976442 2024-05-06T14:56:33 Z vjudge1 Knapsack (NOI18_knapsack) C++11
73 / 100
 236 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vl vector<ll>
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define all(v) v.begin(), v.end()
#define SZ(x) ((int)((x).size()))
#define pow2(x) ((ll)(x) * (x))
const ll mod = 1e9 + 7;
const int INF = 1e9 + 5; // 998244353
const ll INFF = 1e18 + 5;
// Super is the cutest girl
void solve()
{
    int s, n;
    cin >> s >> n;
    vector<pii> byweight[s + 1];

    for (int i = 0; i < n; i++)
    {
        int v, w, k;
        cin >> v >> w >> k;
        byweight[w].pb({v, k});
    }
    vector<pii> items;
    for (int w = 1; w <= s; w++)
    {
        sort(all(byweight[w]));
        int used = s / w + 1;

        while (used != 0 && !byweight[w].empty())
        {
            auto &[v, k] = byweight[w].back();
            items.pb({w, v});
            k--;
            used--;
            if (k == 0)
                byweight[w].pop_back();
        }
    }
    int sz = items.size();
    ll dp[sz + 1][s + 1];
    memset(dp, 0, sizeof(dp));
    for (int i = 1; i <= sz; i++)
    {

        for (int w = s; w >= 0; w--)
        {
            dp[i][w] = max(dp[i][w], dp[i - 1][w]);
            if (w - items[i - 1].first >= 0)
            {
                dp[i][w - items[i - 1].first] = max(dp[i][w - items[i - 1].first], dp[i - 1][w] + items[i - 1].second);
            }
        }
    }
    ll ans = 0;
    for (auto i : dp[sz])
    {
        ans = max(ans, i);
    }
    cout << ans;
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    // freopen("input.txt","r",stdin);
    // freopen("output.txt","w",stdout);
    // int t; cin >> t; while(t--)
    solve();
}

Compilation message

knapsack.cpp: In function 'void solve()':
knapsack.cpp:40:19: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   40 |             auto &[v, k] = byweight[w].back();
      |                   ^

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 1628 KB Output is correct
4 Correct 1 ms 348 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 1960 KB Output is correct
3 Correct 2 ms 1884 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 2 ms 1884 KB Output is correct
7 Correct 2 ms 1880 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 2 ms 1884 KB Output is correct
10 Correct 2 ms 1988 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 1960 KB Output is correct
3 Correct 2 ms 1884 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 2 ms 1884 KB Output is correct
7 Correct 2 ms 1880 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 2 ms 1884 KB Output is correct
10 Correct 2 ms 1988 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 13 ms 15708 KB Output is correct
13 Correct 2 ms 1884 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 3 ms 4952 KB Output is correct
17 Correct 2 ms 1884 KB Output is correct
18 Correct 2 ms 2652 KB Output is correct
19 Correct 3 ms 3676 KB Output is correct
20 Correct 4 ms 3420 KB Output is correct

Subtask #4
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 1628 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 1960 KB Output is correct
7 Correct 2 ms 1884 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 2 ms 1884 KB Output is correct
11 Correct 2 ms 1880 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 2 ms 1884 KB Output is correct
14 Correct 2 ms 1988 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 13 ms 15708 KB Output is correct
17 Correct 2 ms 1884 KB Output is correct
18 Correct 1 ms 600 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 3 ms 4952 KB Output is correct
21 Correct 2 ms 1884 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 3 ms 3676 KB Output is correct
24 Correct 4 ms 3420 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 24 ms 31828 KB Output is correct
27 Correct 2 ms 1884 KB Output is correct
28 Correct 0 ms 600 KB Output is correct
29 Correct 1 ms 600 KB Output is correct
30 Correct 8 ms 12120 KB Output is correct
31 Correct 1 ms 1884 KB Output is correct
32 Correct 2 ms 2652 KB Output is correct
33 Correct 3 ms 3164 KB Output is correct
34 Correct 3 ms 4440 KB Output is correct

Subtask #5
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 1628 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 1960 KB Output is correct
7 Correct 2 ms 1884 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 2 ms 1884 KB Output is correct
11 Correct 2 ms 1880 KB Output is correct
12 Correct 1 ms 1884 KB Output is correct
13 Correct 2 ms 1884 KB Output is correct
14 Correct 2 ms 1988 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 13 ms 15708 KB Output is correct
17 Correct 2 ms 1884 KB Output is correct
18 Correct 1 ms 600 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 3 ms 4952 KB Output is correct
21 Correct 2 ms 1884 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 3 ms 3676 KB Output is correct
24 Correct 4 ms 3420 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 24 ms 31828 KB Output is correct
27 Correct 2 ms 1884 KB Output is correct
28 Correct 0 ms 600 KB Output is correct
29 Correct 1 ms 600 KB Output is correct
30 Correct 8 ms 12120 KB Output is correct
31 Correct 1 ms 1884 KB Output is correct
32 Correct 2 ms 2652 KB Output is correct
33 Correct 3 ms 3164 KB Output is correct
34 Correct 3 ms 4440 KB Output is correct
35 Correct 22 ms 2268 KB Output is correct
36 Correct 47 ms 33744 KB Output is correct
37 Correct 45 ms 33784 KB Output is correct
38 Correct 23 ms 2516 KB Output is correct
39 Correct 26 ms 3012 KB Output is correct
40 Runtime error 236 ms 262144 KB Execution killed with signal 9
41 Halted 0 ms 0 KB -