답안 #907989

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
907989	2024-01-16T06:55:36 Z	gaga999	Let's Win the Election (JOI22_ho_t3)	C++17	100 / 100	2466 ms	2560 KB

Main

#include <cstdio>
#include <stdio.h>
#include <iostream>
#include <math.h>
#include <vector>
#include <queue>
#include <stack>
#include <deque>
#include <algorithm>
#include <utility>
#include <set>
#include <map>
#include <stdlib.h>
#include <cstring>
#include <string.h>
#include <string>
#include <sstream>
#include <assert.h>
#include <climits>
#include <sstream>
#include <numeric>
#include <time.h>
#include <limits.h>
#include <list>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <iomanip>
#include <complex>
#include <chrono>
#include <fstream>
#include <functional>
#include <unistd.h>
// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx,avx2,bmi,bmi2,lzcnt,popcnt")
#define lowbit(x) ((x) & -(x))
#define ml(a, b) ((1ll * (a) * (b)) % M)
#define tml(a, b) (a) = ((1ll * (a) * (b)) % M)
#define ad(a, b) ((0ll + (a) + (b)) % M)
#define tad(a, b) (a) = ((0ll + (a) + (b)) % M)
#define mi(a, b) ((0ll + M + (a) - (b)) % M)
#define tmi(a, b) (a) = ((0ll + M + (a) - (b)) % M)
#define tmin(a, b) (a) = min((a), (b))
#define tmax(a, b) (a) = max((a), (b))
#define iter(a) (a).begin(), (a).end()
#define riter(a) (a).rbegin(), (a).rend()
#define init(a, b) memset((a), (b), sizeof(a))
#define cpy(a, b) memcpy((a), (b), sizeof(a))
#define uni(a) a.resize(unique(iter(a)) - a.begin())
#define pb emplace_back
#define mpr make_pair
#define ls(i) ((i) << 1)
#define rs(i) ((i) << 1 | 1)
#define INF 0x3f3f3f3f
#define NIF 0xc0c0c0c0
#define eps 1e-9
#define F first
#define S second
#define AC cin.tie(0)->sync_with_stdio(0)
using namespace std;
typedef long long llt;
typedef pair<int, int> pii;
typedef pair<double, double> pdd;
typedef pair<llt, llt> pll;
typedef complex<double> cd;
// const int M = 998244353;

// random_device rm;
// mt19937 rg(rm());
// default_random_engine rg(rm());
// uniform_int_distribution<int> rd(INT_MIN, INT_MAX);
// uniform_real_distribution<double> rd(0, M_PI);

void db() { cerr << "\n"; }
template <class T, class... U>
void db(T a, U... b) { cerr << a << " ", db(b...); }

inline char gc()
{
    const static int SZ = 1 << 16;
    static char buf[SZ], *p1, *p2;
    if (p1 == p2 && (p2 = buf + fread(p1 = buf, 1, SZ, stdin), p1 == p2))
        return -1;
    return *p1++;
}
void rd() {}
template <typename T, typename... U>
void rd(T &x, U &...y)
{
    x = 0;
    bool f = 0;
    char c = gc();
    while (!isdigit(c))
        f ^= !(c ^ 45), c = gc();
    while (isdigit(c))
        x = (x << 1) + (x << 3) + (c ^ 48), c = gc();
    f && (x = -x), rd(y...);
}

template <typename T>
void prt(T x)
{
    if (x < 0)
        putchar('-'), x = -x;
    if (x > 9)
        prt(x / 10);
    putchar((x % 10) ^ 48);
}

const int N = 505;
pii ar[N];
double dp[N][N];

signed main()
{
    int n, k;
    rd(n, k);
    for (int i = 0; i < n; i++)
    {
        rd(ar[i].S, ar[i].F);
        if (!~ar[i].F)
            ar[i].F = INF;
    }
    sort(ar, ar + n);
    double ans = 1e12;
    auto slv = [&](int t) -> double
    {
        for (int i = 0; i <= t; i++)
            fill(dp[i], dp[i] + k + 1, 1e12);
        dp[0][0] = 0;
        for (int p = 0; p < n; p++)
        {
            for (int j = min(k, p + 1); j > 0; j--)
            {
                for (int i = min(t, p + 1); i >= 0; i--)
                {
                    if (i)
                        tmin(dp[i][j], dp[i - 1][j - 1] + ar[p].F / double(i));
                    tmin(dp[i][j], dp[i][j - 1] + ar[p].S / double(t + 1));
                }
            }
        }
        tmin(ans, dp[t][k]);
        return dp[t][k];
    };
    int l = 0, r = k;
    while (l < r - 2)
    {
        int m1 = (l * 2 + r) / 3, m2 = (l + r * 2) / 3;
        if (slv(m1) < slv(m2))
            r = m2;
        else
            l = m1;
    }
    for (int i = l; i <= r; i++)
        slv(i);
    printf("%.10lf\n", ans);
}

Subtask #1
5.0 / 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	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	8 ms	604 KB	Output is correct
6	Correct	34 ms	776 KB	Output is correct
7	Correct	118 ms	1084 KB	Output is correct
8	Correct	228 ms	1412 KB	Output is correct
9	Correct	305 ms	1616 KB	Output is correct
10	Correct	217 ms	1360 KB	Output is correct

Subtask #2
5.0 / 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	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	8 ms	604 KB	Output is correct
6	Correct	34 ms	776 KB	Output is correct
7	Correct	118 ms	1084 KB	Output is correct
8	Correct	228 ms	1412 KB	Output is correct
9	Correct	305 ms	1616 KB	Output is correct
10	Correct	217 ms	1360 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	377 ms	912 KB	Output is correct
13	Correct	237 ms	1108 KB	Output is correct
14	Correct	135 ms	604 KB	Output is correct
15	Correct	1777 ms	2044 KB	Output is correct
16	Correct	1216 ms	1508 KB	Output is correct
17	Correct	534 ms	1348 KB	Output is correct
18	Correct	2466 ms	2560 KB	Output is correct
19	Correct	1746 ms	1748 KB	Output is correct
20	Correct	645 ms	1620 KB	Output is correct

Subtask #3
11.0 / 11.0

#	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	344 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	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	344 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	344 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 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	344 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	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	1 ms	344 KB	Output is correct
31	Correct	1 ms	344 KB	Output is correct
32	Correct	0 ms	344 KB	Output is correct
33	Correct	1 ms	344 KB	Output is correct
34	Correct	1 ms	344 KB	Output is correct
35	Correct	1 ms	344 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	0 ms	348 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	344 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	344 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 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	344 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	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	1 ms	344 KB	Output is correct
31	Correct	1 ms	344 KB	Output is correct
32	Correct	0 ms	344 KB	Output is correct
33	Correct	1 ms	344 KB	Output is correct
34	Correct	1 ms	344 KB	Output is correct
35	Correct	1 ms	344 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	0 ms	348 KB	Output is correct
40	Correct	1 ms	348 KB	Output is correct
41	Correct	1 ms	348 KB	Output is correct
42	Correct	1 ms	348 KB	Output is correct
43	Correct	1 ms	348 KB	Output is correct
44	Correct	3 ms	344 KB	Output is correct
45	Correct	5 ms	604 KB	Output is correct
46	Correct	3 ms	348 KB	Output is correct
47	Correct	5 ms	604 KB	Output is correct
48	Correct	7 ms	604 KB	Output is correct
49	Correct	10 ms	720 KB	Output is correct
50	Correct	8 ms	604 KB	Output is correct
51	Correct	11 ms	600 KB	Output is correct
52	Correct	13 ms	604 KB	Output is correct
53	Correct	3 ms	612 KB	Output is correct
54	Correct	4 ms	604 KB	Output is correct
55	Correct	6 ms	604 KB	Output is correct
56	Correct	3 ms	604 KB	Output is correct
57	Correct	7 ms	600 KB	Output is correct
58	Correct	8 ms	604 KB	Output is correct
59	Correct	8 ms	604 KB	Output is correct
60	Correct	7 ms	604 KB	Output is correct

Subtask #6
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1715 ms	2000 KB	Output is correct
2	Correct	1762 ms	2136 KB	Output is correct
3	Correct	1971 ms	2116 KB	Output is correct
4	Correct	2040 ms	2216 KB	Output is correct
5	Correct	2166 ms	2268 KB	Output is correct
6	Correct	1543 ms	1756 KB	Output is correct
7	Correct	2170 ms	2272 KB	Output is correct

Subtask #7
23.0 / 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	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	8 ms	604 KB	Output is correct
6	Correct	34 ms	776 KB	Output is correct
7	Correct	118 ms	1084 KB	Output is correct
8	Correct	228 ms	1412 KB	Output is correct
9	Correct	305 ms	1616 KB	Output is correct
10	Correct	217 ms	1360 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	377 ms	912 KB	Output is correct
13	Correct	237 ms	1108 KB	Output is correct
14	Correct	135 ms	604 KB	Output is correct
15	Correct	1777 ms	2044 KB	Output is correct
16	Correct	1216 ms	1508 KB	Output is correct
17	Correct	534 ms	1348 KB	Output is correct
18	Correct	2466 ms	2560 KB	Output is correct
19	Correct	1746 ms	1748 KB	Output is correct
20	Correct	645 ms	1620 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	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	0 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	0 ms	348 KB	Output is correct
32	Correct	1 ms	348 KB	Output is correct
33	Correct	0 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	0 ms	348 KB	Output is correct
37	Correct	0 ms	348 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct
39	Correct	1 ms	344 KB	Output is correct
40	Correct	1 ms	348 KB	Output is correct
41	Correct	1 ms	348 KB	Output is correct
42	Correct	0 ms	348 KB	Output is correct
43	Correct	1 ms	348 KB	Output is correct
44	Correct	1 ms	348 KB	Output is correct
45	Correct	1 ms	344 KB	Output is correct
46	Correct	1 ms	348 KB	Output is correct
47	Correct	1 ms	348 KB	Output is correct
48	Correct	1 ms	348 KB	Output is correct
49	Correct	0 ms	348 KB	Output is correct
50	Correct	1 ms	344 KB	Output is correct
51	Correct	1 ms	344 KB	Output is correct
52	Correct	0 ms	344 KB	Output is correct
53	Correct	1 ms	344 KB	Output is correct
54	Correct	1 ms	344 KB	Output is correct
55	Correct	1 ms	344 KB	Output is correct
56	Correct	1 ms	348 KB	Output is correct
57	Correct	1 ms	348 KB	Output is correct
58	Correct	1 ms	348 KB	Output is correct
59	Correct	0 ms	348 KB	Output is correct
60	Correct	1 ms	348 KB	Output is correct
61	Correct	1 ms	348 KB	Output is correct
62	Correct	1 ms	348 KB	Output is correct
63	Correct	1 ms	348 KB	Output is correct
64	Correct	3 ms	344 KB	Output is correct
65	Correct	5 ms	604 KB	Output is correct
66	Correct	3 ms	348 KB	Output is correct
67	Correct	5 ms	604 KB	Output is correct
68	Correct	7 ms	604 KB	Output is correct
69	Correct	10 ms	720 KB	Output is correct
70	Correct	8 ms	604 KB	Output is correct
71	Correct	11 ms	600 KB	Output is correct
72	Correct	13 ms	604 KB	Output is correct
73	Correct	3 ms	612 KB	Output is correct
74	Correct	4 ms	604 KB	Output is correct
75	Correct	6 ms	604 KB	Output is correct
76	Correct	3 ms	604 KB	Output is correct
77	Correct	7 ms	600 KB	Output is correct
78	Correct	8 ms	604 KB	Output is correct
79	Correct	8 ms	604 KB	Output is correct
80	Correct	7 ms	604 KB	Output is correct
81	Correct	1715 ms	2000 KB	Output is correct
82	Correct	1762 ms	2136 KB	Output is correct
83	Correct	1971 ms	2116 KB	Output is correct
84	Correct	2040 ms	2216 KB	Output is correct
85	Correct	2166 ms	2268 KB	Output is correct
86	Correct	1543 ms	1756 KB	Output is correct
87	Correct	2170 ms	2272 KB	Output is correct
88	Correct	12 ms	344 KB	Output is correct
89	Correct	30 ms	604 KB	Output is correct
90	Correct	92 ms	780 KB	Output is correct
91	Correct	223 ms	872 KB	Output is correct
92	Correct	415 ms	1084 KB	Output is correct
93	Correct	793 ms	1268 KB	Output is correct
94	Correct	931 ms	1420 KB	Output is correct
95	Correct	1471 ms	1692 KB	Output is correct
96	Correct	1555 ms	1812 KB	Output is correct
97	Correct	1817 ms	1948 KB	Output is correct
98	Correct	620 ms	1352 KB	Output is correct
99	Correct	318 ms	1348 KB	Output is correct
100	Correct	891 ms	1352 KB	Output is correct
101	Correct	1177 ms	1504 KB	Output is correct
102	Correct	1408 ms	1676 KB	Output is correct
103	Correct	1362 ms	1676 KB	Output is correct
104	Correct	1438 ms	1608 KB	Output is correct
105	Correct	238 ms	1356 KB	Output is correct

답안 #907989

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 5.0 / 5.0

Subtask #3 11.0 / 11.0

Subtask #4 12.0 / 12.0

Subtask #5 33.0 / 33.0

Subtask #6 11.0 / 11.0

Subtask #7 23.0 / 23.0

Subtask #1
5.0 / 5.0

Subtask #2
5.0 / 5.0

Subtask #3
11.0 / 11.0

Subtask #4
12.0 / 12.0

Subtask #5
33.0 / 33.0

Subtask #6
11.0 / 11.0

Subtask #7
23.0 / 23.0