oj.uz

Submission #806419

# Submission time Handle Problem Language Result Execution time Memory
806419 2023-08-04T06:38:57 Z vjudge1 Let's Win the Election (JOI22_ho_t3) C++17
33 / 100
 2500 ms 340 KB 
#ifdef Home
#define _GLIBCXX_DEBUG
#endif // Home

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

int use[555], T, n, k;
vector < pair < int, int > > AB, A, B;

ld recur(int pos, int x, int y) {
    if(x == y) {
        ld tmp = .0;
        for(int i = 0, j = k - x; i < n && j; ++ i) {
            if(!use[i]) {
                -- j;
                tmp += (ld)A[i].first / (ld)(x + 1);
            }
        }
   //   cout << pos << ' ' << x << ' ' << y << ' ' << tmp << '\n';
        return tmp;
    }
    ld tmp = 1e6;
    ++ y;
    for(int i = pos; i < (int)B.size() - x + y; ++ i) {
        use[B[i].second] = true;
        tmp = min(tmp, (ld)B[i].first / (ld)y + recur(i + 1, x, y));
        use[B[i].second] = false;
    }
  //cout << pos << ' ' << x << ' ' << y << ' ' << tmp << '\n';
    return tmp;
}

main() {
#ifdef Home
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif // Home
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    
    bool ok = true;
    cin >> n >> k;
    AB.resize(n);
    A.resize(n);
    for(int i = 0; i < n; ++ i) {
        cin >> AB[i].first >> AB[i].second;
        A[i] = {AB[i].first, i};
        ok &= AB[i].second == -1 || AB[i].second == AB[i].first;
    }
    sort(A.begin(), A.end());
    for(int i = 0; i < n; ++ i) {
        if(AB[A[i].second].second != -1) {
            B.push_back({AB[A[i].second].second, i});
        }
    }
    sort(B.begin(), B.end());
    ld ans = 1e6, tmp, c;
    for(int t = 0; t <= (int)B.size(); ++ t) {
        if(t == k) {
            break;
        }
        if(!ok) {
            ans = min(ans, recur(0, t, 0));
            continue;
        }
        ++ T;
        tmp = .0, c = 1;
        for(int i = 0; i < t; ++ i) {
            tmp += (ld)B[i].first / c;
            ++ c;
            use[B[i].second] = T;
        }
        for(int i = 0, j = k - t; i < n && j; ++ i) {
            if(use[i] != T) {
                -- j;
                tmp += (ld)A[i].first / c;
            }
        }
        ans = min(ans, tmp); 
    }
    cout << fixed << setprecision(15) << ans;
}

Compilation message

Main.cpp:38:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   38 | main() {
      | ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 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 212 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 6 ms 212 KB Output is correct
18 Correct 2 ms 212 KB Output is correct
19 Correct 28 ms 296 KB Output is correct
20 Correct 3 ms 212 KB Output is correct
21 Correct 1 ms 320 KB Output is correct
22 Correct 43 ms 212 KB Output is correct
23 Correct 4 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 94 ms 212 KB Output is correct
26 Correct 25 ms 316 KB Output is correct
27 Correct 28 ms 316 KB Output is correct
28 Correct 45 ms 256 KB Output is correct
29 Correct 28 ms 212 KB Output is correct
30 Correct 36 ms 212 KB Output is correct
31 Correct 30 ms 212 KB Output is correct
32 Correct 37 ms 212 KB Output is correct
33 Correct 28 ms 212 KB Output is correct
34 Correct 35 ms 320 KB Output is correct
35 Correct 35 ms 296 KB Output is correct
36 Correct 29 ms 316 KB Output is correct
37 Correct 40 ms 308 KB Output is correct
38 Correct 28 ms 212 KB Output is correct
39 Correct 33 ms 212 KB Output is correct
40 Correct 28 ms 324 KB Output is correct

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 6 ms 212 KB Output is correct
18 Correct 2 ms 212 KB Output is correct
19 Correct 28 ms 296 KB Output is correct
20 Correct 3 ms 212 KB Output is correct
21 Correct 1 ms 320 KB Output is correct
22 Correct 43 ms 212 KB Output is correct
23 Correct 4 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 94 ms 212 KB Output is correct
26 Correct 25 ms 316 KB Output is correct
27 Correct 28 ms 316 KB Output is correct
28 Correct 45 ms 256 KB Output is correct
29 Correct 28 ms 212 KB Output is correct
30 Correct 36 ms 212 KB Output is correct
31 Correct 30 ms 212 KB Output is correct
32 Correct 37 ms 212 KB Output is correct
33 Correct 28 ms 212 KB Output is correct
34 Correct 35 ms 320 KB Output is correct
35 Correct 35 ms 296 KB Output is correct
36 Correct 29 ms 316 KB Output is correct
37 Correct 40 ms 308 KB Output is correct
38 Correct 28 ms 212 KB Output is correct
39 Correct 33 ms 212 KB Output is correct
40 Correct 28 ms 324 KB Output is correct
41 Execution timed out 2569 ms 212 KB Time limit exceeded
42 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2571 ms 340 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 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 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 6 ms 212 KB Output is correct
38 Correct 2 ms 212 KB Output is correct
39 Correct 28 ms 296 KB Output is correct
40 Correct 3 ms 212 KB Output is correct
41 Correct 1 ms 320 KB Output is correct
42 Correct 43 ms 212 KB Output is correct
43 Correct 4 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 94 ms 212 KB Output is correct
46 Correct 25 ms 316 KB Output is correct
47 Correct 28 ms 316 KB Output is correct
48 Correct 45 ms 256 KB Output is correct
49 Correct 28 ms 212 KB Output is correct
50 Correct 36 ms 212 KB Output is correct
51 Correct 30 ms 212 KB Output is correct
52 Correct 37 ms 212 KB Output is correct
53 Correct 28 ms 212 KB Output is correct
54 Correct 35 ms 320 KB Output is correct
55 Correct 35 ms 296 KB Output is correct
56 Correct 29 ms 316 KB Output is correct
57 Correct 40 ms 308 KB Output is correct
58 Correct 28 ms 212 KB Output is correct
59 Correct 33 ms 212 KB Output is correct
60 Correct 28 ms 324 KB Output is correct
61 Execution timed out 2569 ms 212 KB Time limit exceeded
62 Halted 0 ms 0 KB -