oj.uz

답안 #528174

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
528174 2022-02-19T15:16:53 Z doowey Let's Win the Election (JOI22_ho_t3) C++14
100 / 100
 1719 ms 6988 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long double ld;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = 505;
const ld inf = 1e12;

vector<ld> suff[N];

ld A[N];
ld B[N];
ld dp[N][N];

void mini(ld &a, ld b){
    a = min(a, b);
}

int main(){
    fastIO;
    //freopen("in.txt","r",stdin);
    int n, k;
    cin >> n >> k;
    vector<pair<ld,ld>> C(n);
    for(int i = 0 ; i < n; i ++ ){
        cin >> C[i].se >> C[i].fi;
        if(C[i].fi == -1) C[i].fi = inf;
    }
    sort(C.begin(), C.end());
    for(int i = 0 ; i < n; i ++ ){
        A[i + 1] = C[i].se;
        B[i + 1] = C[i].fi;
    }
    for(int i = n; i >= 1; i -- ){
        for(int j = i ; j <= n; j ++ ){
            suff[i].push_back(A[j]);
        }
        sort(suff[i].begin(), suff[i].end());
    }
    ld res = inf;
    ld current;
    for(int take = 0; take <= k ; take ++ ){
        for(int i = 0 ; i <= n; i ++ ){
            for(int j = 0 ; j <= n; j ++ ){
                dp[i][j] = inf;
            }
        }
        dp[0][0] = 0;
        for(int i = 1; i <= n; i ++ ){
            for(int j = 0 ; j <= i ; j ++ ){
                if(dp[i - 1][j] == inf) continue;
                mini(dp[i][j], dp[i-1][j] + A[i] / ld(take + 1));
                mini(dp[i][j+1], dp[i-1][j] + B[i] / ld(j + 1));
            }
        }
        for(int id = take; id <= k; id ++ ){
            current = dp[id][take];
            for(int j = 0 ; j < k - id; j ++ ){
                current += suff[id + 1][j] / ld(take + 1);
            }
            res = min(res, current);
        }
    }
    cout << fixed << setprecision(9) << res << "\n";
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 101 ms 6860 KB Output is correct
6 Correct 238 ms 6972 KB Output is correct
7 Correct 496 ms 6972 KB Output is correct
8 Correct 725 ms 6968 KB Output is correct
9 Correct 929 ms 6964 KB Output is correct
10 Correct 704 ms 6960 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 101 ms 6860 KB Output is correct
6 Correct 238 ms 6972 KB Output is correct
7 Correct 496 ms 6972 KB Output is correct
8 Correct 725 ms 6968 KB Output is correct
9 Correct 929 ms 6964 KB Output is correct
10 Correct 704 ms 6960 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 554 ms 6976 KB Output is correct
13 Correct 528 ms 6964 KB Output is correct
14 Correct 476 ms 6964 KB Output is correct
15 Correct 1163 ms 6964 KB Output is correct
16 Correct 1131 ms 6968 KB Output is correct
17 Correct 1037 ms 6964 KB Output is correct
18 Correct 1627 ms 6968 KB Output is correct
19 Correct 1654 ms 6968 KB Output is correct
20 Correct 1461 ms 6988 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 352 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 352 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 332 KB Output is correct

Subtask #5
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 352 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 332 KB Output is correct
41 Correct 3 ms 1040 KB Output is correct
42 Correct 3 ms 972 KB Output is correct
43 Correct 5 ms 972 KB Output is correct
44 Correct 5 ms 972 KB Output is correct
45 Correct 8 ms 1044 KB Output is correct
46 Correct 8 ms 972 KB Output is correct
47 Correct 10 ms 1040 KB Output is correct
48 Correct 12 ms 972 KB Output is correct
49 Correct 16 ms 972 KB Output is correct
50 Correct 11 ms 972 KB Output is correct
51 Correct 15 ms 1036 KB Output is correct
52 Correct 14 ms 972 KB Output is correct
53 Correct 10 ms 1048 KB Output is correct
54 Correct 9 ms 1036 KB Output is correct
55 Correct 10 ms 1048 KB Output is correct
56 Correct 12 ms 1040 KB Output is correct
57 Correct 11 ms 1040 KB Output is correct
58 Correct 11 ms 1040 KB Output is correct
59 Correct 9 ms 972 KB Output is correct
60 Correct 13 ms 1040 KB Output is correct

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1677 ms 6980 KB Output is correct
2 Correct 1631 ms 6972 KB Output is correct
3 Correct 1644 ms 6968 KB Output is correct
4 Correct 1719 ms 6960 KB Output is correct
5 Correct 1713 ms 6968 KB Output is correct
6 Correct 1623 ms 6968 KB Output is correct
7 Correct 1646 ms 6968 KB Output is correct

Subtask #7
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 101 ms 6860 KB Output is correct
6 Correct 238 ms 6972 KB Output is correct
7 Correct 496 ms 6972 KB Output is correct
8 Correct 725 ms 6968 KB Output is correct
9 Correct 929 ms 6964 KB Output is correct
10 Correct 704 ms 6960 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 554 ms 6976 KB Output is correct
13 Correct 528 ms 6964 KB Output is correct
14 Correct 476 ms 6964 KB Output is correct
15 Correct 1163 ms 6964 KB Output is correct
16 Correct 1131 ms 6968 KB Output is correct
17 Correct 1037 ms 6964 KB Output is correct
18 Correct 1627 ms 6968 KB Output is correct
19 Correct 1654 ms 6968 KB Output is correct
20 Correct 1461 ms 6988 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 0 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 0 ms 352 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 0 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 0 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 1 ms 332 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 0 ms 332 KB Output is correct
61 Correct 3 ms 1040 KB Output is correct
62 Correct 3 ms 972 KB Output is correct
63 Correct 5 ms 972 KB Output is correct
64 Correct 5 ms 972 KB Output is correct
65 Correct 8 ms 1044 KB Output is correct
66 Correct 8 ms 972 KB Output is correct
67 Correct 10 ms 1040 KB Output is correct
68 Correct 12 ms 972 KB Output is correct
69 Correct 16 ms 972 KB Output is correct
70 Correct 11 ms 972 KB Output is correct
71 Correct 15 ms 1036 KB Output is correct
72 Correct 14 ms 972 KB Output is correct
73 Correct 10 ms 1048 KB Output is correct
74 Correct 9 ms 1036 KB Output is correct
75 Correct 10 ms 1048 KB Output is correct
76 Correct 12 ms 1040 KB Output is correct
77 Correct 11 ms 1040 KB Output is correct
78 Correct 11 ms 1040 KB Output is correct
79 Correct 9 ms 972 KB Output is correct
80 Correct 13 ms 1040 KB Output is correct
81 Correct 1677 ms 6980 KB Output is correct
82 Correct 1631 ms 6972 KB Output is correct
83 Correct 1644 ms 6968 KB Output is correct
84 Correct 1719 ms 6960 KB Output is correct
85 Correct 1713 ms 6968 KB Output is correct
86 Correct 1623 ms 6968 KB Output is correct
87 Correct 1646 ms 6968 KB Output is correct
88 Correct 172 ms 6968 KB Output is correct
89 Correct 206 ms 6968 KB Output is correct
90 Correct 408 ms 6968 KB Output is correct
91 Correct 425 ms 6928 KB Output is correct
92 Correct 808 ms 6988 KB Output is correct
93 Correct 800 ms 6964 KB Output is correct
94 Correct 1209 ms 6972 KB Output is correct
95 Correct 1287 ms 6988 KB Output is correct
96 Correct 1504 ms 6968 KB Output is correct
97 Correct 1463 ms 6968 KB Output is correct
98 Correct 1102 ms 6968 KB Output is correct
99 Correct 1168 ms 6968 KB Output is correct
100 Correct 1116 ms 6968 KB Output is correct
101 Correct 1139 ms 6988 KB Output is correct
102 Correct 1094 ms 6964 KB Output is correct
103 Correct 1097 ms 6964 KB Output is correct
104 Correct 1094 ms 6988 KB Output is correct
105 Correct 1089 ms 6968 KB Output is correct