답안 #831612

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
831612	2023-08-20T11:19:18 Z	jasmin	Let's Win the Election (JOI22_ho_t3)	C++17	100 / 100	410 ms	2604 KB

Main

//JOI 2022 Final round
#include<bits/stdc++.h>
using namespace std;

const double INF=1e9+7;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cout.precision(100);

    int n, k;
    cin >> n >> k;

    vector<int> a(n);
    vector<int> b(n);
    for(int i=0; i<n; i++){
        cin >> a[i] >> b[i];

        if(b[i]==-1) b[i]=INF;
    }

    vector<int> sorted(n);
    iota(sorted.begin(), sorted.end(), 0);
    sort(sorted.begin(), sorted.end(), [&](int i, int j){
        return b[i]<b[j];
    });

    double ans=INF;
    for(int c=0; c<=k; c++){

        vector<vector<double> > dp(n+1, vector<double> (k+1, INF));
        dp[0][0]=0;

        for(int i=0; i<n; i++){
            for(int j=0; j<= min(i+1, k); j++){
                int x=i+1-j;
                int ind=sorted[i];

                if(0<x && x<=c){

                    dp[i+1][j] = dp[i][j] + (double)b[ind]/(double)x;

                }
                else if(c<x){

                    dp[i+1][j] = dp[i][j];
                }

                if(0<j){

                    dp[i+1][j] = min(dp[i+1][j], dp[i][j-1] + (double)a[ind]/(double)(c+1));
                }

            }
        }

        ans = min(ans, dp[n][k-c]);
    }

    cout << ans << "\n";
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	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	5 ms	536 KB	Output is correct
6	Correct	26 ms	836 KB	Output is correct
7	Correct	106 ms	1332 KB	Output is correct
8	Correct	235 ms	2064 KB	Output is correct
9	Correct	382 ms	2492 KB	Output is correct
10	Correct	209 ms	1864 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	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	5 ms	536 KB	Output is correct
6	Correct	26 ms	836 KB	Output is correct
7	Correct	106 ms	1332 KB	Output is correct
8	Correct	235 ms	2064 KB	Output is correct
9	Correct	382 ms	2492 KB	Output is correct
10	Correct	209 ms	1864 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	50 ms	916 KB	Output is correct
13	Correct	40 ms	924 KB	Output is correct
14	Correct	40 ms	1396 KB	Output is correct
15	Correct	209 ms	1964 KB	Output is correct
16	Correct	206 ms	1724 KB	Output is correct
17	Correct	218 ms	1956 KB	Output is correct
18	Correct	410 ms	2484 KB	Output is correct
19	Correct	401 ms	2604 KB	Output is correct
20	Correct	385 ms	2472 KB	Output is correct

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	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	0 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	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 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

#	결과	실행 시간	메모리	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	0 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	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 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	324 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	320 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 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	1 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	1 ms	324 KB	Output is correct
30	Correct	1 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	1 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	1 ms	212 KB	Output is correct
36	Correct	0 ms	324 KB	Output is correct
37	Correct	0 ms	320 KB	Output is correct
38	Correct	1 ms	324 KB	Output is correct
39	Correct	0 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	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	0 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	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 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	324 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	320 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 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	1 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	1 ms	324 KB	Output is correct
30	Correct	1 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	1 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	1 ms	212 KB	Output is correct
36	Correct	0 ms	324 KB	Output is correct
37	Correct	0 ms	320 KB	Output is correct
38	Correct	1 ms	324 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	0 ms	212 KB	Output is correct
41	Correct	1 ms	212 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	340 KB	Output is correct
46	Correct	1 ms	340 KB	Output is correct
47	Correct	1 ms	340 KB	Output is correct
48	Correct	1 ms	340 KB	Output is correct
49	Correct	2 ms	388 KB	Output is correct
50	Correct	2 ms	340 KB	Output is correct
51	Correct	2 ms	340 KB	Output is correct
52	Correct	2 ms	340 KB	Output is correct
53	Correct	1 ms	324 KB	Output is correct
54	Correct	2 ms	340 KB	Output is correct
55	Correct	2 ms	324 KB	Output is correct
56	Correct	2 ms	340 KB	Output is correct
57	Correct	1 ms	340 KB	Output is correct
58	Correct	1 ms	340 KB	Output is correct
59	Correct	1 ms	340 KB	Output is correct
60	Correct	1 ms	320 KB	Output is correct

Subtask #6
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	389 ms	2492 KB	Output is correct
2	Correct	389 ms	2512 KB	Output is correct
3	Correct	382 ms	2592 KB	Output is correct
4	Correct	383 ms	2500 KB	Output is correct
5	Correct	391 ms	2516 KB	Output is correct
6	Correct	385 ms	2472 KB	Output is correct
7	Correct	400 ms	2472 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	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	5 ms	536 KB	Output is correct
6	Correct	26 ms	836 KB	Output is correct
7	Correct	106 ms	1332 KB	Output is correct
8	Correct	235 ms	2064 KB	Output is correct
9	Correct	382 ms	2492 KB	Output is correct
10	Correct	209 ms	1864 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	50 ms	916 KB	Output is correct
13	Correct	40 ms	924 KB	Output is correct
14	Correct	40 ms	1396 KB	Output is correct
15	Correct	209 ms	1964 KB	Output is correct
16	Correct	206 ms	1724 KB	Output is correct
17	Correct	218 ms	1956 KB	Output is correct
18	Correct	410 ms	2484 KB	Output is correct
19	Correct	401 ms	2604 KB	Output is correct
20	Correct	385 ms	2472 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	0 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	1 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	1 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	1 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	324 KB	Output is correct
37	Correct	0 ms	212 KB	Output is correct
38	Correct	0 ms	320 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	0 ms	212 KB	Output is correct
41	Correct	0 ms	212 KB	Output is correct
42	Correct	0 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	1 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	1 ms	324 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	0 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	0 ms	212 KB	Output is correct
55	Correct	1 ms	212 KB	Output is correct
56	Correct	0 ms	324 KB	Output is correct
57	Correct	0 ms	320 KB	Output is correct
58	Correct	1 ms	324 KB	Output is correct
59	Correct	0 ms	212 KB	Output is correct
60	Correct	0 ms	212 KB	Output is correct
61	Correct	1 ms	212 KB	Output is correct
62	Correct	1 ms	340 KB	Output is correct
63	Correct	1 ms	340 KB	Output is correct
64	Correct	1 ms	340 KB	Output is correct
65	Correct	1 ms	340 KB	Output is correct
66	Correct	1 ms	340 KB	Output is correct
67	Correct	1 ms	340 KB	Output is correct
68	Correct	1 ms	340 KB	Output is correct
69	Correct	2 ms	388 KB	Output is correct
70	Correct	2 ms	340 KB	Output is correct
71	Correct	2 ms	340 KB	Output is correct
72	Correct	2 ms	340 KB	Output is correct
73	Correct	1 ms	324 KB	Output is correct
74	Correct	2 ms	340 KB	Output is correct
75	Correct	2 ms	324 KB	Output is correct
76	Correct	2 ms	340 KB	Output is correct
77	Correct	1 ms	340 KB	Output is correct
78	Correct	1 ms	340 KB	Output is correct
79	Correct	1 ms	340 KB	Output is correct
80	Correct	1 ms	320 KB	Output is correct
81	Correct	389 ms	2492 KB	Output is correct
82	Correct	389 ms	2512 KB	Output is correct
83	Correct	382 ms	2592 KB	Output is correct
84	Correct	383 ms	2500 KB	Output is correct
85	Correct	391 ms	2516 KB	Output is correct
86	Correct	385 ms	2472 KB	Output is correct
87	Correct	400 ms	2472 KB	Output is correct
88	Correct	5 ms	540 KB	Output is correct
89	Correct	5 ms	540 KB	Output is correct
90	Correct	26 ms	836 KB	Output is correct
91	Correct	27 ms	840 KB	Output is correct
92	Correct	106 ms	1324 KB	Output is correct
93	Correct	106 ms	1316 KB	Output is correct
94	Correct	255 ms	1924 KB	Output is correct
95	Correct	228 ms	1816 KB	Output is correct
96	Correct	321 ms	2112 KB	Output is correct
97	Correct	319 ms	2224 KB	Output is correct
98	Correct	212 ms	1804 KB	Output is correct
99	Correct	208 ms	1788 KB	Output is correct
100	Correct	202 ms	2004 KB	Output is correct
101	Correct	206 ms	2064 KB	Output is correct
102	Correct	202 ms	2000 KB	Output is correct
103	Correct	213 ms	1996 KB	Output is correct
104	Correct	206 ms	1936 KB	Output is correct
105	Correct	234 ms	1716 KB	Output is correct

답안 #831612

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