Submission #548567

# Submission time Handle Problem Language Result Execution time Memory
548567 2022-04-13T20:07:01 Z Alexandruabcde Knapsack (NOI18_knapsack) C++14
100 / 100
126 ms 3648 KB
#include <bits/stdc++.h>

using namespace std;

constexpr int NMAX = 1e5 + 5;
constexpr int SUMMAX = 2005;
typedef long long LL;

struct Item {
    int value;
    int copies;

    bool operator < (const Item &other) const {
        return value > other.value;
    }
};

int S, N;

vector <Item> V[SUMMAX];
int dp[SUMMAX];

int main () {
    cin >> S >> N;

    for (int i = 1; i <= N; ++ i ) {
        Item it;
        int w;
        cin >> it.value >> w >> it.copies;

        V[w].push_back(it);
    }

    for (int i = 0; i <= S; ++ i )
        dp[i] = -1;
    dp[0] = 0;

    for (int w = 0; w <= S; ++ w ) {
        int ind = 0;

        sort(V[w].begin(), V[w].end());

        for (int cnt = 0; cnt * w < S; ++ cnt ) {
            if (ind >= V[w].size()) break;

            for (int s = S; s >= w; -- s )
                if (dp[s - w] != -1) dp[s] = max(dp[s], dp[s - w] + V[w][ind].value);

            V[w][ind].copies --;
            if (V[w][ind].copies == 0) ++ ind;
        }
    }

    int ans = 0;
    for (int i = 0; i <= S; ++ i )
        ans = max(ans, dp[i]);
    cout << ans << '\n';

    return 0;
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:44:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Item>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |             if (ind >= V[w].size()) break;
      |                 ~~~~^~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 356 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 356 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 2 ms 360 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 356 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 360 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 4 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 2 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 356 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 360 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 4 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 2 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 63 ms 2364 KB Output is correct
36 Correct 73 ms 2536 KB Output is correct
37 Correct 65 ms 2372 KB Output is correct
38 Correct 78 ms 2884 KB Output is correct
39 Correct 93 ms 3332 KB Output is correct
40 Correct 126 ms 3512 KB Output is correct
41 Correct 84 ms 2744 KB Output is correct
42 Correct 87 ms 2828 KB Output is correct
43 Correct 100 ms 2932 KB Output is correct
44 Correct 97 ms 2776 KB Output is correct
45 Correct 92 ms 3648 KB Output is correct
46 Correct 94 ms 3136 KB Output is correct
47 Correct 101 ms 3604 KB Output is correct
48 Correct 101 ms 3588 KB Output is correct
49 Correct 83 ms 3424 KB Output is correct
50 Correct 103 ms 3400 KB Output is correct