oj.uz

Submission #1057380

# Submission time Handle Problem Language Result Execution time Memory
1057380 2024-08-13T18:31:34 Z Alebn Let's Win the Election (JOI22_ho_t3) C++14
10 / 100
 2 ms 2396 KB 
#include <bits/stdc++.h>
#define int double

using namespace std;

void solve() {
    int n, k;
    cin >> n >> k;
    vector<pair<int,int>> a(n);
    for(int i = 0; i < n; i++) {
        cin >> a[i].first >> a[i].second;
        if(a[i].second == -1) a[i].second = INT_MAX;
    }
    sort(a.begin(), a.end(), [](pair<int,int> a, pair<int,int> b){return a.second < b.second;});
    vector<vector<int>> dp(n + 1, vector<int>(k + 1, INT_MAX));
    dp[n][0] = 0;
    for(int i = n - 1; i > -1; i--) {
        for(int j = 0; j <= k; j++) dp[i][j] = min(dp[i + 1][j], (!j || dp[i + 1][j - 1] == INT_MAX ? INT_MAX : dp[i + 1][j - 1] + a[i].first));
    }
    int res = dp[0][k], val = 0;
    for(int i = 0; i < n; i++) {
        if(a[i].second == INT_MAX) break;
        val += a[i].second / (i + 1);
        res = min(res, val + dp[i + 1][k - i - 1] / (i + 2));
    }
    cout << res << "\n";
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout << fixed << setprecision(6);
    solve();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 1628 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 1628 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 860 KB Output is correct
13 Correct 1 ms 860 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 1 ms 1628 KB Output is correct
17 Correct 1 ms 1864 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 0 ms 460 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 0 ms 460 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 0 ms 460 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2396 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1884 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 1628 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 860 KB Output is correct
13 Correct 1 ms 860 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 1 ms 1628 KB Output is correct
17 Correct 1 ms 1864 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 460 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Incorrect 0 ms 348 KB Output isn't correct
30 Halted 0 ms 0 KB -