oj.uz

답안 #938947

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
938947 2024-03-06T01:06:19 Z Pacybwoah Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 43 ms 4472 KB 
#include<iostream>
#include<vector>
#include<iomanip>
#include<utility>
#include<algorithm>
using namespace std;
typedef long double ld;
vector<pair<ld,ld>> vec;
int n,k;
ld solve(int m){
    vector<vector<ld>> dp(n+1,vector<ld>(k-m+1,1e9+7));
    dp[1][0]=(m>0?vec[1].first:0);
    if(k-m>0) dp[1][1]=vec[1].second/ld(m+1);
    for(int i=2;i<=n;i++){
        for(int j=0;j<=min(k-m,i);j++){
            if(i!=j) dp[i][j]=min(dp[i][j],dp[i-1][j]+(i-j>m?0:vec[i].first/(long double)(i-j)));
            if(j>0) dp[i][j]=min(dp[i][j],dp[i-1][j-1]+vec[i].second/(long double)(m+1));
        }
    }
    /*for(int i=1;i<=n;i++){
        for(int j=0;j<=k-m;j++) if(m==2) cout<<dp[i][j]<<" ";
        cout<<"\n";
    }*/
    return dp[n][k-m];
}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin>>n>>k;
    vec.resize(n+1);
    for(int i=1;i<=n;i++) cin>>vec[i].second>>vec[i].first;
    for(int i=1;i<=n;i++) if(vec[i].first==-1) vec[i].first=1e9;
    sort(next(vec.begin()),vec.end());
    //for(int i=1;i<=n;i++) cout<<vec[i].first<<' '<<vec[i].second<<"\n";
    int l=0,r=k;
    ld ans=1e9+7;
    while(l<r){
        int mid=(l+r)>>1;
        ld a=solve(max(mid,0)),b=solve(min(mid+1,r));
        ans=min(ans,min(a,b));
        if(a>b) l=min(mid+1,r);
        else r=(max(mid,0));
    }
    //for(int i=0;i<=k;i++) ans=min(ans,solve(i));
    cout<<fixed<<setprecision(12)<<ans;
}

Subtask #1
5.0 / 5.0

# 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 4 ms 912 KB Output is correct
6 Correct 12 ms 1488 KB Output is correct
7 Correct 24 ms 2516 KB Output is correct
8 Correct 36 ms 3388 KB Output is correct
9 Correct 43 ms 4472 KB Output is correct
10 Correct 35 ms 3240 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 4 ms 912 KB Output is correct
6 Correct 12 ms 1488 KB Output is correct
7 Correct 24 ms 2516 KB Output is correct
8 Correct 36 ms 3388 KB Output is correct
9 Correct 43 ms 4472 KB Output is correct
10 Correct 35 ms 3240 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 3 ms 884 KB Output is correct
13 Correct 7 ms 896 KB Output is correct
14 Correct 15 ms 1304 KB Output is correct
15 Correct 6 ms 1636 KB Output is correct
16 Correct 18 ms 1636 KB Output is correct
17 Correct 26 ms 2552 KB Output is correct
18 Correct 8 ms 2396 KB Output is correct
19 Correct 26 ms 2396 KB Output is correct
20 Correct 42 ms 3764 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 600 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 452 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 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 600 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 452 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 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 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 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 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 344 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 600 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 452 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 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 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 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 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 344 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 1 ms 496 KB Output is correct
45 Correct 1 ms 348 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 596 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 2 ms 348 KB Output is correct
51 Correct 1 ms 604 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 604 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 1 ms 348 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 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 2396 KB Output is correct
2 Correct 28 ms 2392 KB Output is correct
3 Correct 24 ms 2396 KB Output is correct
4 Correct 18 ms 2396 KB Output is correct
5 Correct 15 ms 2392 KB Output is correct
6 Correct 33 ms 3292 KB Output is correct
7 Correct 11 ms 2404 KB Output is correct

Subtask #7
23.0 / 23.0

# 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 4 ms 912 KB Output is correct
6 Correct 12 ms 1488 KB Output is correct
7 Correct 24 ms 2516 KB Output is correct
8 Correct 36 ms 3388 KB Output is correct
9 Correct 43 ms 4472 KB Output is correct
10 Correct 35 ms 3240 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 3 ms 884 KB Output is correct
13 Correct 7 ms 896 KB Output is correct
14 Correct 15 ms 1304 KB Output is correct
15 Correct 6 ms 1636 KB Output is correct
16 Correct 18 ms 1636 KB Output is correct
17 Correct 26 ms 2552 KB Output is correct
18 Correct 8 ms 2396 KB Output is correct
19 Correct 26 ms 2396 KB Output is correct
20 Correct 42 ms 3764 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 600 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 452 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 344 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 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 344 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 344 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 1 ms 496 KB Output is correct
65 Correct 1 ms 348 KB Output is correct
66 Correct 1 ms 348 KB Output is correct
67 Correct 1 ms 348 KB Output is correct
68 Correct 1 ms 596 KB Output is correct
69 Correct 1 ms 348 KB Output is correct
70 Correct 2 ms 348 KB Output is correct
71 Correct 1 ms 604 KB Output is correct
72 Correct 1 ms 348 KB Output is correct
73 Correct 1 ms 604 KB Output is correct
74 Correct 1 ms 348 KB Output is correct
75 Correct 1 ms 348 KB Output is correct
76 Correct 1 ms 348 KB Output is correct
77 Correct 1 ms 348 KB Output is correct
78 Correct 1 ms 348 KB Output is correct
79 Correct 1 ms 348 KB Output is correct
80 Correct 1 ms 348 KB Output is correct
81 Correct 28 ms 2396 KB Output is correct
82 Correct 28 ms 2392 KB Output is correct
83 Correct 24 ms 2396 KB Output is correct
84 Correct 18 ms 2396 KB Output is correct
85 Correct 15 ms 2392 KB Output is correct
86 Correct 33 ms 3292 KB Output is correct
87 Correct 11 ms 2404 KB Output is correct
88 Correct 4 ms 856 KB Output is correct
89 Correct 2 ms 604 KB Output is correct
90 Correct 11 ms 1248 KB Output is correct
91 Correct 4 ms 860 KB Output is correct
92 Correct 19 ms 1920 KB Output is correct
93 Correct 10 ms 1368 KB Output is correct
94 Correct 28 ms 2728 KB Output is correct
95 Correct 13 ms 1880 KB Output is correct
96 Correct 26 ms 2264 KB Output is correct
97 Correct 17 ms 2268 KB Output is correct
98 Correct 26 ms 2588 KB Output is correct
99 Correct 30 ms 3104 KB Output is correct
100 Correct 29 ms 2504 KB Output is correct
101 Correct 19 ms 1648 KB Output is correct
102 Correct 12 ms 1632 KB Output is correct
103 Correct 14 ms 1636 KB Output is correct
104 Correct 17 ms 1884 KB Output is correct
105 Correct 35 ms 3252 KB Output is correct