oj.uz

답안 #766561

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
766561 2023-06-25T21:59:03 Z raysh07 Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 322 ms 364 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define INF (int)1e18
#define f first
#define s second

mt19937_64 RNG(chrono::steady_clock::now().time_since_epoch().count());

void Solve() 
{
    int n, k; cin >> n >> k;
    
    vector <pair<int, int>> a(n);
    for (auto &x : a) {
        cin >> x.s >> x.f;
        if (x.f == -1) x.f = INF;
    }
    
    sort(a.begin(), a.end());
    double ans = INF;
    
    for (int i = 0; i <= k; i++){
        vector <double> dp(k + 1, INF); //how many A's taken 
        dp[0] = 0;
        
       // cout << "OKING " << i << "\n\n";
        for (int j = 0; j < n; j++){
            vector <double> ndp(k + 1, INF); 
            for (int j1 = 0; j1 <= k; j1++){
                if (j1 != k)
                ndp[j1 + 1] = min(ndp[j1 + 1], dp[j1] + (double)a[j].s / (i + 1));
                int pos = j + 1 - j1;
                if (pos < 1) continue;
                if (pos <= i) ndp[j1] = min(ndp[j1], dp[j1] + (double)a[j].f / pos);
                else ndp[j1] = min(ndp[j1], dp[j1]);
            }
            
            // cout << "LOL " << j << "\n";
            // for (auto &x : ndp) cout << x << " ";
            // cout << "\n";
            
            dp = ndp;
        }
        // cout << "\n";
        
        ans = min(ans, dp[k - i]);
    }
    
    cout << fixed << setprecision(10) << ans << "\n";
}

int32_t main() 
{
    auto begin = std::chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
   // cin >> t;
    for(int i = 1; i <= t; i++) 
    {
        //cout << "Case #" << i << ": ";
        Solve();
    }
    auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
    cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n"; 
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 6 ms 364 KB Output is correct
6 Correct 20 ms 340 KB Output is correct
7 Correct 79 ms 212 KB Output is correct
8 Correct 182 ms 316 KB Output is correct
9 Correct 317 ms 320 KB Output is correct
10 Correct 158 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 6 ms 364 KB Output is correct
6 Correct 20 ms 340 KB Output is correct
7 Correct 79 ms 212 KB Output is correct
8 Correct 182 ms 316 KB Output is correct
9 Correct 317 ms 320 KB Output is correct
10 Correct 158 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 29 ms 212 KB Output is correct
13 Correct 29 ms 324 KB Output is correct
14 Correct 30 ms 340 KB Output is correct
15 Correct 158 ms 320 KB Output is correct
16 Correct 160 ms 320 KB Output is correct
17 Correct 165 ms 212 KB Output is correct
18 Correct 317 ms 340 KB Output is correct
19 Correct 319 ms 340 KB Output is correct
20 Correct 319 ms 212 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 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 212 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 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 212 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 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 324 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 320 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 328 KB Output is correct
29 Correct 1 ms 316 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 1 ms 320 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct

Subtask #5
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 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 212 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 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 324 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 320 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 328 KB Output is correct
29 Correct 1 ms 316 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 1 ms 320 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 1 ms 320 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 320 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 324 KB Output is correct
46 Correct 2 ms 212 KB Output is correct
47 Correct 2 ms 328 KB Output is correct
48 Correct 2 ms 324 KB Output is correct
49 Correct 2 ms 212 KB Output is correct
50 Correct 2 ms 324 KB Output is correct
51 Correct 3 ms 212 KB Output is correct
52 Correct 3 ms 328 KB Output is correct
53 Correct 2 ms 212 KB Output is correct
54 Correct 2 ms 212 KB Output is correct
55 Correct 2 ms 212 KB Output is correct
56 Correct 2 ms 212 KB Output is correct
57 Correct 2 ms 212 KB Output is correct
58 Correct 2 ms 212 KB Output is correct
59 Correct 2 ms 212 KB Output is correct
60 Correct 2 ms 212 KB Output is correct

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 322 ms 340 KB Output is correct
2 Correct 317 ms 340 KB Output is correct
3 Correct 321 ms 332 KB Output is correct
4 Correct 318 ms 328 KB Output is correct
5 Correct 319 ms 340 KB Output is correct
6 Correct 317 ms 320 KB Output is correct
7 Correct 317 ms 320 KB Output is correct

Subtask #7
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 6 ms 364 KB Output is correct
6 Correct 20 ms 340 KB Output is correct
7 Correct 79 ms 212 KB Output is correct
8 Correct 182 ms 316 KB Output is correct
9 Correct 317 ms 320 KB Output is correct
10 Correct 158 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 29 ms 212 KB Output is correct
13 Correct 29 ms 324 KB Output is correct
14 Correct 30 ms 340 KB Output is correct
15 Correct 158 ms 320 KB Output is correct
16 Correct 160 ms 320 KB Output is correct
17 Correct 165 ms 212 KB Output is correct
18 Correct 317 ms 340 KB Output is correct
19 Correct 319 ms 340 KB Output is correct
20 Correct 319 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 324 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 324 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 328 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 1 ms 324 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 1 ms 320 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 1 ms 328 KB Output is correct
49 Correct 1 ms 316 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 336 KB Output is correct
55 Correct 0 ms 212 KB Output is correct
56 Correct 1 ms 320 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 1 ms 320 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 1 ms 320 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 1 ms 324 KB Output is correct
66 Correct 2 ms 212 KB Output is correct
67 Correct 2 ms 328 KB Output is correct
68 Correct 2 ms 324 KB Output is correct
69 Correct 2 ms 212 KB Output is correct
70 Correct 2 ms 324 KB Output is correct
71 Correct 3 ms 212 KB Output is correct
72 Correct 3 ms 328 KB Output is correct
73 Correct 2 ms 212 KB Output is correct
74 Correct 2 ms 212 KB Output is correct
75 Correct 2 ms 212 KB Output is correct
76 Correct 2 ms 212 KB Output is correct
77 Correct 2 ms 212 KB Output is correct
78 Correct 2 ms 212 KB Output is correct
79 Correct 2 ms 212 KB Output is correct
80 Correct 2 ms 212 KB Output is correct
81 Correct 322 ms 340 KB Output is correct
82 Correct 317 ms 340 KB Output is correct
83 Correct 321 ms 332 KB Output is correct
84 Correct 318 ms 328 KB Output is correct
85 Correct 319 ms 340 KB Output is correct
86 Correct 317 ms 320 KB Output is correct
87 Correct 317 ms 320 KB Output is correct
88 Correct 4 ms 212 KB Output is correct
89 Correct 4 ms 212 KB Output is correct
90 Correct 20 ms 212 KB Output is correct
91 Correct 19 ms 212 KB Output is correct
92 Correct 79 ms 340 KB Output is correct
93 Correct 79 ms 324 KB Output is correct
94 Correct 182 ms 212 KB Output is correct
95 Correct 193 ms 320 KB Output is correct
96 Correct 261 ms 340 KB Output is correct
97 Correct 261 ms 340 KB Output is correct
98 Correct 160 ms 332 KB Output is correct
99 Correct 158 ms 320 KB Output is correct
100 Correct 159 ms 212 KB Output is correct
101 Correct 158 ms 212 KB Output is correct
102 Correct 163 ms 320 KB Output is correct
103 Correct 158 ms 320 KB Output is correct
104 Correct 161 ms 340 KB Output is correct
105 Correct 158 ms 320 KB Output is correct