oj.uz

Submission #938946

# Submission time Handle Problem Language Result Execution time Memory
938946 2024-03-06T01:05:27 Z Pacybwoah Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 809 ms 4664 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;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:35:9: warning: unused variable 'l' [-Wunused-variable]
   35 |     int l=0,r=k;
      |         ^
Main.cpp:35:13: warning: unused variable 'r' [-Wunused-variable]
   35 |     int l=0,r=k;
      |             ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory 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 1 ms 344 KB Output is correct
5 Correct 11 ms 864 KB Output is correct
6 Correct 59 ms 1472 KB Output is correct
7 Correct 221 ms 2428 KB Output is correct
8 Correct 462 ms 3420 KB Output is correct
9 Correct 760 ms 4428 KB Output is correct
10 Correct 412 ms 3192 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory 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 1 ms 344 KB Output is correct
5 Correct 11 ms 864 KB Output is correct
6 Correct 59 ms 1472 KB Output is correct
7 Correct 221 ms 2428 KB Output is correct
8 Correct 462 ms 3420 KB Output is correct
9 Correct 760 ms 4428 KB Output is correct
10 Correct 412 ms 3192 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 85 ms 1628 KB Output is correct
13 Correct 93 ms 1628 KB Output is correct
14 Correct 88 ms 1624 KB Output is correct
15 Correct 411 ms 3260 KB Output is correct
16 Correct 420 ms 3260 KB Output is correct
17 Correct 413 ms 3192 KB Output is correct
18 Correct 801 ms 4428 KB Output is correct
19 Correct 770 ms 4564 KB Output is correct
20 Correct 764 ms 4424 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 600 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 1 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 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 600 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 1 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 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 456 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 600 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 456 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 456 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 0 ms 600 KB Output is correct
34 Correct 0 ms 600 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 600 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 1 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 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 456 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 600 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 456 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 456 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 0 ms 600 KB Output is correct
34 Correct 0 ms 600 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 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 1 ms 448 KB Output is correct
45 Correct 2 ms 604 KB Output is correct
46 Correct 2 ms 604 KB Output is correct
47 Correct 3 ms 604 KB Output is correct
48 Correct 3 ms 636 KB Output is correct
49 Correct 4 ms 720 KB Output is correct
50 Correct 5 ms 596 KB Output is correct
51 Correct 6 ms 692 KB Output is correct
52 Correct 6 ms 692 KB Output is correct
53 Correct 3 ms 604 KB Output is correct
54 Correct 3 ms 616 KB Output is correct
55 Correct 3 ms 604 KB Output is correct
56 Correct 3 ms 600 KB Output is correct
57 Correct 3 ms 624 KB Output is correct
58 Correct 3 ms 604 KB Output is correct
59 Correct 3 ms 604 KB Output is correct
60 Correct 3 ms 604 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 770 ms 4664 KB Output is correct
2 Correct 809 ms 4428 KB Output is correct
3 Correct 779 ms 4436 KB Output is correct
4 Correct 780 ms 4424 KB Output is correct
5 Correct 788 ms 4428 KB Output is correct
6 Correct 771 ms 4424 KB Output is correct
7 Correct 802 ms 4428 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory 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 1 ms 344 KB Output is correct
5 Correct 11 ms 864 KB Output is correct
6 Correct 59 ms 1472 KB Output is correct
7 Correct 221 ms 2428 KB Output is correct
8 Correct 462 ms 3420 KB Output is correct
9 Correct 760 ms 4428 KB Output is correct
10 Correct 412 ms 3192 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 85 ms 1628 KB Output is correct
13 Correct 93 ms 1628 KB Output is correct
14 Correct 88 ms 1624 KB Output is correct
15 Correct 411 ms 3260 KB Output is correct
16 Correct 420 ms 3260 KB Output is correct
17 Correct 413 ms 3192 KB Output is correct
18 Correct 801 ms 4428 KB Output is correct
19 Correct 770 ms 4564 KB Output is correct
20 Correct 764 ms 4424 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 600 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 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 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 344 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 344 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 456 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 600 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 456 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 456 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 0 ms 600 KB Output is correct
54 Correct 0 ms 600 KB Output is correct
55 Correct 1 ms 344 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 0 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 1 ms 448 KB Output is correct
65 Correct 2 ms 604 KB Output is correct
66 Correct 2 ms 604 KB Output is correct
67 Correct 3 ms 604 KB Output is correct
68 Correct 3 ms 636 KB Output is correct
69 Correct 4 ms 720 KB Output is correct
70 Correct 5 ms 596 KB Output is correct
71 Correct 6 ms 692 KB Output is correct
72 Correct 6 ms 692 KB Output is correct
73 Correct 3 ms 604 KB Output is correct
74 Correct 3 ms 616 KB Output is correct
75 Correct 3 ms 604 KB Output is correct
76 Correct 3 ms 600 KB Output is correct
77 Correct 3 ms 624 KB Output is correct
78 Correct 3 ms 604 KB Output is correct
79 Correct 3 ms 604 KB Output is correct
80 Correct 3 ms 604 KB Output is correct
81 Correct 770 ms 4664 KB Output is correct
82 Correct 809 ms 4428 KB Output is correct
83 Correct 779 ms 4436 KB Output is correct
84 Correct 780 ms 4424 KB Output is correct
85 Correct 788 ms 4428 KB Output is correct
86 Correct 771 ms 4424 KB Output is correct
87 Correct 802 ms 4428 KB Output is correct
88 Correct 11 ms 864 KB Output is correct
89 Correct 11 ms 864 KB Output is correct
90 Correct 60 ms 1420 KB Output is correct
91 Correct 60 ms 1420 KB Output is correct
92 Correct 221 ms 2468 KB Output is correct
93 Correct 222 ms 2468 KB Output is correct
94 Correct 476 ms 3420 KB Output is correct
95 Correct 478 ms 3420 KB Output is correct
96 Correct 659 ms 4024 KB Output is correct
97 Correct 648 ms 4024 KB Output is correct
98 Correct 420 ms 3260 KB Output is correct
99 Correct 418 ms 3228 KB Output is correct
100 Correct 442 ms 3336 KB Output is correct
101 Correct 412 ms 3252 KB Output is correct
102 Correct 420 ms 3192 KB Output is correct
103 Correct 421 ms 3192 KB Output is correct
104 Correct 408 ms 3192 KB Output is correct
105 Correct 417 ms 3208 KB Output is correct