답안 #885782

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
885782	2023-12-10T17:27:15 Z	EJIC_B_KEDAX	Let's Win the Election (JOI22_ho_t3)	C++17	56 / 100	2500 ms	994496 KB

Main

#ifdef LOCAL
    //#define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>
#include <random>

#ifndef LOCAL
    //#pragma GCC optimize("O3")
    //#pragma GCC optimize("Ofast")
    //#pragma GCC optimize("unroll-loops")
    #pragma GCC target("avx,avx2,bmi,bmi2,popcnt,lzcnt")
#endif
using namespace std;
using ll = long long;
using ld = long double;
#define x first
#define y second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()

mt19937_64 mt(418);

void solve();
void init();

int32_t main() {
#ifndef LOCAL
    cin.tie(nullptr)->sync_with_stdio(false);
#endif
    // srand(time(0));
    init();
    cout << fixed << setprecision(20);
    int t = 1;
    // cin >> t;
    while (t--) {
        solve();
    }
}

void init() {}

int lay = 1;

bool cmp(const pair<int, int>& a, const pair<int, int>& b) {
    if (a.y < b.y) {
        return true;
    }
    if (a.y > b.y) {
        return false;
    }
    return a.x < b.x;
}

void solve() {
    int n, k;
    cin >> n >> k;
    vector<pair<int, int>> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i].x >> a[i].y;
        if (a[i].y == -1) {
            a[i].y = INT32_MAX / 2;
        }
    }
    double ans = 2e18;
    vector<vector<vector<double>>> dp(n + 1, vector<vector<double>>(k + 1, vector<double>(n + 1, 2e18)));
    for (int ll = 0; ll <= n; ll++) {
        sort(all(a), cmp);
        for (int i = 0; i < n; i++) {
            for (int j = 0; j <= k; j++) {
                for (int l = 0; l <= n; l++) {
                    dp[i + 1][j][l] = 2e18;
                }
            }
        }
        dp[0][0][0] = 0;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j <= k; j++) {
                for (int l = 0; l <= n; l++) {
                    dp[i + 1][j][l] = min(dp[i + 1][j][l], dp[i][j][l]);
                    if (j > 0) {
                        dp[i + 1][j][l] = min(dp[i + 1][j][l], dp[i][j - 1][l] + a[i].x / (double)(ll + 1));
                        if (l > 0) {
                            dp[i + 1][j][l] = min(dp[i + 1][j][l], dp[i][j - 1][l - 1] + a[i].y / (double)l);
                        }
                    }
                }
            }
        }
        for (int i = ll; i <= n; i++) {
            ans = min(ans, dp[n][k][i]);
        }
        lay++;
    }
    cout << ans << '\n';
}

Subtask #1
0 / 5.0

#	결과	실행 시간	메모리	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	Execution timed out	2584 ms	101460 KB	Time limit exceeded
6	Halted	0 ms	0 KB	-

Subtask #2
0 / 5.0

#	결과	실행 시간	메모리	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	Execution timed out	2584 ms	101460 KB	Time limit exceeded
6	Halted	0 ms	0 KB	-

Subtask #3
11.0 / 11.0

#	결과	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	348 KB	Output is correct
10	Correct	344 KB	Output is correct
11	Correct	348 KB	Output is correct
12	Correct	348 KB	Output is correct
13	Correct	348 KB	Output is correct
14	Correct	344 KB	Output is correct
15	Correct	348 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	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	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	500 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	1 ms	348 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	1 ms	348 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct
39	Correct	1 ms	460 KB	Output is correct
40	Correct	1 ms	348 KB	Output is correct

Subtask #5
33.0 / 33.0

#	결과	실행 시간	메모리	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	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	500 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	1 ms	348 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	1 ms	348 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct
39	Correct	1 ms	460 KB	Output is correct
40	Correct	1 ms	348 KB	Output is correct
41	Correct	58 ms	1628 KB	Output is correct
42	Correct	56 ms	1784 KB	Output is correct
43	Correct	108 ms	2908 KB	Output is correct
44	Correct	112 ms	2904 KB	Output is correct
45	Correct	182 ms	4716 KB	Output is correct
46	Correct	180 ms	4716 KB	Output is correct
47	Correct	233 ms	5984 KB	Output is correct
48	Correct	236 ms	5980 KB	Output is correct
49	Correct	287 ms	7228 KB	Output is correct
50	Correct	291 ms	7248 KB	Output is correct
51	Correct	365 ms	8904 KB	Output is correct
52	Correct	362 ms	9044 KB	Output is correct
53	Correct	232 ms	5980 KB	Output is correct
54	Correct	232 ms	5980 KB	Output is correct
55	Correct	237 ms	5976 KB	Output is correct
56	Correct	233 ms	5976 KB	Output is correct
57	Correct	234 ms	5980 KB	Output is correct
58	Correct	233 ms	6232 KB	Output is correct
59	Correct	233 ms	5980 KB	Output is correct
60	Correct	235 ms	6224 KB	Output is correct

Subtask #6
0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	2593 ms	994496 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	결과	실행 시간	메모리	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	Execution timed out	2584 ms	101460 KB	Time limit exceeded
6	Halted	0 ms	0 KB	-

답안 #885782

Compilation message

Subtask #1 0 / 5.0

Subtask #2 0 / 5.0

Subtask #3 11.0 / 11.0

Subtask #4 12.0 / 12.0

Subtask #5 33.0 / 33.0

Subtask #6 0 / 11.0

Subtask #7 0 / 23.0

Subtask #1
0 / 5.0

Subtask #2
0 / 5.0

Subtask #3
11.0 / 11.0

Subtask #4
12.0 / 12.0

Subtask #5
33.0 / 33.0

Subtask #6
0 / 11.0

Subtask #7
0 / 23.0