oj.uz

Submission #593570

# Submission time Handle Problem Language Result Execution time Memory
593570 2022-07-11T12:01:19 Z oleh1421 Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 2210 ms 8396 KB 
//#pragma GCC optimize("O3")
//#pragma GCC target("avx2")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
//#define y2 y_2
#define endl '\n'
using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;
const ll inf=1e18;
mt19937 rnd(time(NULL));
const ll mod=998244353;
const int N=510;
const int Lg=16;
ld pref[N][N];
ld suf[N][N];
ll sum[N];
void solve(){
    int n,k;cin>>n>>k;
    vector<pair<ll,ll> >v;
    for (int i=1;i<=n;i++){
        ll a,b;cin>>a>>b;
        if (b==-1) b=inf;
        v.push_back({b,a});
    }
    sort(v.begin(),v.end());
    ld res=0;
    vector<ll>u;
    for (int i=n-1;i>=0;i--){
        sum[i]=0;
        for (int j=0;j<k-i-1;j++) sum[i]+=u[j];
        u.push_back(v[i].second);
        sort(u.begin(),u.end());
    }
    for (int i=0;i<k;i++) res+=u[i];
    for (int l=0;l<k;l++){
        for (int i=0;i<=n+1;i++){
            for (int j=0;j<=n+1;j++){
                pref[i][j]=suf[i][j]=inf;
            }
        }
        pref[0][0]=0.0;
        for (int i=0;i<n;i++){
            for (int j=0;j<=i;j++){
                pref[i+1][j]=min(pref[i+1][j],pref[i][j]+(ld)v[i].second/(l+1.0));
                if (v[i].first<inf) pref[i+1][j+1]=min(pref[i+1][j+1],pref[i][j]+(ld)v[i].first/(j+1.0));
            }
        }
        for (int i=n-1;i>=0;i--){
            ld cur=pref[i+1][l];
            cur+=(ld)sum[i]/(l+1.0);
            res=min(res,cur);
        }
    }
    cout<<setprecision(10)<<fixed<<res<<endl;
}
int32_t main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int tt=1;
//    cin>>tt;
    while (tt--){
        solve();
    }
    return 0;

}


/**
3
5 2 7 3 1 6 8 4
**/

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 186 ms 8352 KB Output is correct
6 Correct 446 ms 8352 KB Output is correct
7 Correct 887 ms 8396 KB Output is correct
8 Correct 1312 ms 8348 KB Output is correct
9 Correct 1782 ms 8352 KB Output is correct
10 Correct 1251 ms 8356 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 186 ms 8352 KB Output is correct
6 Correct 446 ms 8352 KB Output is correct
7 Correct 887 ms 8396 KB Output is correct
8 Correct 1312 ms 8348 KB Output is correct
9 Correct 1782 ms 8352 KB Output is correct
10 Correct 1251 ms 8356 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 664 ms 8352 KB Output is correct
13 Correct 577 ms 8356 KB Output is correct
14 Correct 536 ms 8356 KB Output is correct
15 Correct 1502 ms 8396 KB Output is correct
16 Correct 1331 ms 8396 KB Output is correct
17 Correct 1239 ms 8356 KB Output is correct
18 Correct 2157 ms 8356 KB Output is correct
19 Correct 1888 ms 8364 KB Output is correct
20 Correct 1777 ms 8364 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 468 KB Output is correct
17 Correct 0 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 0 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 0 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 0 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 0 ms 468 KB Output is correct
34 Correct 0 ms 468 KB Output is correct
35 Correct 0 ms 468 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 0 ms 468 KB Output is correct
39 Correct 0 ms 468 KB Output is correct
40 Correct 1 ms 468 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 468 KB Output is correct
17 Correct 0 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 0 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 0 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 0 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 0 ms 468 KB Output is correct
34 Correct 0 ms 468 KB Output is correct
35 Correct 0 ms 468 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 0 ms 468 KB Output is correct
39 Correct 0 ms 468 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 4 ms 1492 KB Output is correct
42 Correct 4 ms 1556 KB Output is correct
43 Correct 7 ms 1492 KB Output is correct
44 Correct 6 ms 1560 KB Output is correct
45 Correct 10 ms 1492 KB Output is correct
46 Correct 9 ms 1492 KB Output is correct
47 Correct 13 ms 1564 KB Output is correct
48 Correct 13 ms 1492 KB Output is correct
49 Correct 17 ms 1492 KB Output is correct
50 Correct 15 ms 1564 KB Output is correct
51 Correct 21 ms 1564 KB Output is correct
52 Correct 19 ms 1492 KB Output is correct
53 Correct 13 ms 1556 KB Output is correct
54 Correct 13 ms 1492 KB Output is correct
55 Correct 13 ms 1560 KB Output is correct
56 Correct 13 ms 1560 KB Output is correct
57 Correct 12 ms 1492 KB Output is correct
58 Correct 13 ms 1556 KB Output is correct
59 Correct 13 ms 1560 KB Output is correct
60 Correct 12 ms 1560 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2173 ms 8352 KB Output is correct
2 Correct 2210 ms 8356 KB Output is correct
3 Correct 2167 ms 8360 KB Output is correct
4 Correct 2164 ms 8364 KB Output is correct
5 Correct 2197 ms 8360 KB Output is correct
6 Correct 2207 ms 8364 KB Output is correct
7 Correct 2155 ms 8360 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 186 ms 8352 KB Output is correct
6 Correct 446 ms 8352 KB Output is correct
7 Correct 887 ms 8396 KB Output is correct
8 Correct 1312 ms 8348 KB Output is correct
9 Correct 1782 ms 8352 KB Output is correct
10 Correct 1251 ms 8356 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 664 ms 8352 KB Output is correct
13 Correct 577 ms 8356 KB Output is correct
14 Correct 536 ms 8356 KB Output is correct
15 Correct 1502 ms 8396 KB Output is correct
16 Correct 1331 ms 8396 KB Output is correct
17 Correct 1239 ms 8356 KB Output is correct
18 Correct 2157 ms 8356 KB Output is correct
19 Correct 1888 ms 8364 KB Output is correct
20 Correct 1777 ms 8364 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 0 ms 468 KB Output is correct
37 Correct 0 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 0 ms 468 KB Output is correct
40 Correct 0 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 0 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 1 ms 468 KB Output is correct
47 Correct 1 ms 468 KB Output is correct
48 Correct 0 ms 468 KB Output is correct
49 Correct 1 ms 468 KB Output is correct
50 Correct 0 ms 468 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 0 ms 468 KB Output is correct
54 Correct 0 ms 468 KB Output is correct
55 Correct 0 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 468 KB Output is correct
58 Correct 0 ms 468 KB Output is correct
59 Correct 0 ms 468 KB Output is correct
60 Correct 1 ms 468 KB Output is correct
61 Correct 4 ms 1492 KB Output is correct
62 Correct 4 ms 1556 KB Output is correct
63 Correct 7 ms 1492 KB Output is correct
64 Correct 6 ms 1560 KB Output is correct
65 Correct 10 ms 1492 KB Output is correct
66 Correct 9 ms 1492 KB Output is correct
67 Correct 13 ms 1564 KB Output is correct
68 Correct 13 ms 1492 KB Output is correct
69 Correct 17 ms 1492 KB Output is correct
70 Correct 15 ms 1564 KB Output is correct
71 Correct 21 ms 1564 KB Output is correct
72 Correct 19 ms 1492 KB Output is correct
73 Correct 13 ms 1556 KB Output is correct
74 Correct 13 ms 1492 KB Output is correct
75 Correct 13 ms 1560 KB Output is correct
76 Correct 13 ms 1560 KB Output is correct
77 Correct 12 ms 1492 KB Output is correct
78 Correct 13 ms 1556 KB Output is correct
79 Correct 13 ms 1560 KB Output is correct
80 Correct 12 ms 1560 KB Output is correct
81 Correct 2173 ms 8352 KB Output is correct
82 Correct 2210 ms 8356 KB Output is correct
83 Correct 2167 ms 8360 KB Output is correct
84 Correct 2164 ms 8364 KB Output is correct
85 Correct 2197 ms 8360 KB Output is correct
86 Correct 2207 ms 8364 KB Output is correct
87 Correct 2155 ms 8360 KB Output is correct
88 Correct 225 ms 8276 KB Output is correct
89 Correct 224 ms 8360 KB Output is correct
90 Correct 548 ms 8356 KB Output is correct
91 Correct 548 ms 8376 KB Output is correct
92 Correct 1081 ms 8360 KB Output is correct
93 Correct 1087 ms 8368 KB Output is correct
94 Correct 1614 ms 8396 KB Output is correct
95 Correct 1605 ms 8360 KB Output is correct
96 Correct 1929 ms 8356 KB Output is correct
97 Correct 1923 ms 8364 KB Output is correct
98 Correct 1507 ms 8368 KB Output is correct
99 Correct 1507 ms 8396 KB Output is correct
100 Correct 1499 ms 8276 KB Output is correct
101 Correct 1534 ms 8356 KB Output is correct
102 Correct 1511 ms 8356 KB Output is correct
103 Correct 1502 ms 8360 KB Output is correct
104 Correct 1509 ms 8364 KB Output is correct
105 Correct 1507 ms 8360 KB Output is correct