oj.uz

Submission #551921

# Submission time Handle Problem Language Result Execution time Memory
551921 2022-04-21T22:23:14 Z training4usaco Knapsack (NOI18_knapsack) C++11
100 / 100
 116 ms 3708 KB 
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

#define pii pair<int, int>
#define fi first
#define se second
#define INF 1000000009

#define MAXS 2005

vector<pii> weightgroup[MAXS];
int dp[MAXS];
 
bool comp(pii a, pii b) {
    return a.fi > b.fi;
}
 
int main() {
    int s, n;
    cin >> s >> n;
 
    for(int i = 0; i < n; ++i) {
        int v, w, k;
        cin >> v >> w >> k;
        weightgroup[w].push_back(make_pair(v, k));
    }
 
    for(int i = 1; i <= s; ++i) {
        sort(weightgroup[i].begin(), weightgroup[i].end(), comp);
    }
 
    for(int i = 0; i <= s; ++i) {
        dp[i] = -INF;
    }

    dp[0] = 0;
 
    for(int i = 1; i <= s; ++i) {
        int usedspace = 0;
        for(pii item : weightgroup[i]) {
            for(int c = 1; c <= item.se; ++c) {
                usedspace += i;
                for(int leftover = s; leftover >= usedspace; --leftover) {
                    dp[leftover] = max(dp[leftover], dp[leftover - i] + item.fi);
                }
                if(usedspace > s) {
                    break;
                }
            }
            if(usedspace > s) {
                break;
            }
        }
    }
 
    int answer = 0;
    for(int i = 1; i <= s; ++i) {
        answer = max(answer, dp[i]);
    }
    cout << answer << endl;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct

Subtask #2
17.0 / 17.0

# 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 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 352 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 340 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

Subtask #3
20.0 / 20.0

# 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 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 352 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 340 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 2 ms 340 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 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 352 KB Output is correct
19 Correct 1 ms 352 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 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 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 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 352 KB Output is correct
10 Correct 1 ms 352 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 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 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
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 352 KB Output is correct
23 Correct 1 ms 352 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 2 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 352 KB Output is correct
30 Correct 1 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 352 KB Output is correct
34 Correct 1 ms 340 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 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 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 352 KB Output is correct
10 Correct 1 ms 352 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 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 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
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 352 KB Output is correct
23 Correct 1 ms 352 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 2 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 352 KB Output is correct
30 Correct 1 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 352 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 67 ms 2340 KB Output is correct
36 Correct 79 ms 2516 KB Output is correct
37 Correct 68 ms 2496 KB Output is correct
38 Correct 73 ms 2764 KB Output is correct
39 Correct 95 ms 3364 KB Output is correct
40 Correct 116 ms 3508 KB Output is correct
41 Correct 78 ms 2800 KB Output is correct
42 Correct 75 ms 2704 KB Output is correct
43 Correct 87 ms 2740 KB Output is correct
44 Correct 90 ms 2832 KB Output is correct
45 Correct 102 ms 3680 KB Output is correct
46 Correct 84 ms 3224 KB Output is correct
47 Correct 95 ms 3708 KB Output is correct
48 Correct 107 ms 3556 KB Output is correct
49 Correct 88 ms 3352 KB Output is correct
50 Correct 95 ms 3232 KB Output is correct