oj.uz

Submission #534664

# Submission time Handle Problem Language Result Execution time Memory
534664 2022-03-08T13:23:11 Z Paul_Liao_1457 Let's Win the Election (JOI22_ho_t3) C++14
100 / 100
 374 ms 4412 KB 
// 還要更強
#include<iostream>
#include<queue>
#include<set>
#include<map>
#include<iomanip>
#include<math.h>
#include<cstring>
#include<stack>
#include<string.h>
#include<random>
#include<algorithm>
#include<vector>
 
#define ll long long
#define DB double
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define REP(i,a,b) for(ll i=a;i>=b;i--)
#define F first
#define S second
#define INF (int)1e9+5
#define MOD (ll)(998244353)
#define pb push_back
#define AC ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define endl "\n"
 
using namespace std;
 
template<class T> using PQ=priority_queue<T,vector<T>,greater<T> >;
mt19937 rng(random_device{}());

int n,k;
vector<pair<DB,DB> > v;

bool cmp(pair<DB,DB> a,pair<DB,DB> b){
    return a.S<b.S;
}

DB dp[505][505];
DB suf[505][505];
multiset<int> mst;

signed main(){
    AC;
    cin>>n>>k;
    v.pb({0,0});
    FOR(i,0,n){
        int a,b; cin>>a>>b; if(b==-1) b=2000;
        v.pb({a,b});
    }
    sort(v.begin()+1,v.end(),cmp);
    
    REP(i,n,1){
        mst.insert(v[i].F);
        FOR(j,1,n-i+2){
            int cnt=j;
            auto it=mst.begin();
            while(cnt--){
                suf[i][j]+=*it; it++;
            }
        }
    }
    DB ans=1e9;
    for(DB tot=1;tot<=n+1;tot++){
        FOR(i,1,n+1)FOR(j,0,n+1) dp[i][j]=1e9;
        //cout<<"tot="<<tot<<endl;
        dp[1][0]=v[1].F/tot;
        if(v[1].S!=2000) dp[1][1]=v[1].S;
        if(tot==1){
            ans=min(ans,dp[1][0]+suf[2][k-1]/tot);
            ans=min(ans,suf[1][k]);
        }
        else if(tot==2) ans=min(ans,dp[1][1]+suf[2][k-1]/tot);
        //cout<<"why="<<dp[1][1]+suf[2][k-1]/tot<<endl;
        FOR(i,2,n+1)FOR(j,0,min(i,(int)tot)+1){
            if(j&&v[i].S!=2000) dp[i][j]=min(dp[i-1][j]+v[i].F/tot,dp[i-1][j-1]+v[i].S/(DB)(j));
            else dp[i][j]=dp[i-1][j]+v[i].F/tot;
            if(j+1==tot) ans=min(ans,dp[i][j]+suf[i+1][k-i]/tot);
        }
    }
    cout<<fixed<<setprecision(5);
    cout<<ans<<endl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 259 ms 4296 KB Output is correct
6 Correct 274 ms 4296 KB Output is correct
7 Correct 277 ms 4292 KB Output is correct
8 Correct 271 ms 4288 KB Output is correct
9 Correct 322 ms 4292 KB Output is correct
10 Correct 285 ms 4292 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 259 ms 4296 KB Output is correct
6 Correct 274 ms 4296 KB Output is correct
7 Correct 277 ms 4292 KB Output is correct
8 Correct 271 ms 4288 KB Output is correct
9 Correct 322 ms 4292 KB Output is correct
10 Correct 285 ms 4292 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 303 ms 4228 KB Output is correct
13 Correct 309 ms 4324 KB Output is correct
14 Correct 266 ms 4268 KB Output is correct
15 Correct 315 ms 4288 KB Output is correct
16 Correct 290 ms 4292 KB Output is correct
17 Correct 261 ms 4292 KB Output is correct
18 Correct 297 ms 4296 KB Output is correct
19 Correct 269 ms 4276 KB Output is correct
20 Correct 266 ms 4196 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 452 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 452 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 452 KB Output is correct
25 Correct 1 ms 452 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 436 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 452 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 452 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 452 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 452 KB Output is correct
25 Correct 1 ms 452 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 436 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 452 KB Output is correct
41 Correct 3 ms 1100 KB Output is correct
42 Correct 3 ms 1092 KB Output is correct
43 Correct 5 ms 1100 KB Output is correct
44 Correct 3 ms 1100 KB Output is correct
45 Correct 5 ms 1100 KB Output is correct
46 Correct 4 ms 1068 KB Output is correct
47 Correct 5 ms 1100 KB Output is correct
48 Correct 5 ms 1128 KB Output is correct
49 Correct 4 ms 1100 KB Output is correct
50 Correct 4 ms 1100 KB Output is correct
51 Correct 4 ms 1096 KB Output is correct
52 Correct 4 ms 1076 KB Output is correct
53 Correct 4 ms 1100 KB Output is correct
54 Correct 4 ms 1088 KB Output is correct
55 Correct 4 ms 1100 KB Output is correct
56 Correct 3 ms 1100 KB Output is correct
57 Correct 3 ms 1100 KB Output is correct
58 Correct 3 ms 1100 KB Output is correct
59 Correct 5 ms 1100 KB Output is correct
60 Correct 3 ms 1100 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 331 ms 4280 KB Output is correct
2 Correct 321 ms 4296 KB Output is correct
3 Correct 374 ms 4292 KB Output is correct
4 Correct 307 ms 4292 KB Output is correct
5 Correct 325 ms 4288 KB Output is correct
6 Correct 285 ms 4372 KB Output is correct
7 Correct 317 ms 4296 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 259 ms 4296 KB Output is correct
6 Correct 274 ms 4296 KB Output is correct
7 Correct 277 ms 4292 KB Output is correct
8 Correct 271 ms 4288 KB Output is correct
9 Correct 322 ms 4292 KB Output is correct
10 Correct 285 ms 4292 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 303 ms 4228 KB Output is correct
13 Correct 309 ms 4324 KB Output is correct
14 Correct 266 ms 4268 KB Output is correct
15 Correct 315 ms 4288 KB Output is correct
16 Correct 290 ms 4292 KB Output is correct
17 Correct 261 ms 4292 KB Output is correct
18 Correct 297 ms 4296 KB Output is correct
19 Correct 269 ms 4276 KB Output is correct
20 Correct 266 ms 4196 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 328 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 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 324 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 452 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 452 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 452 KB Output is correct
45 Correct 1 ms 452 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 1 ms 460 KB Output is correct
50 Correct 1 ms 460 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 460 KB Output is correct
53 Correct 1 ms 460 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 1 ms 460 KB Output is correct
56 Correct 1 ms 460 KB Output is correct
57 Correct 1 ms 460 KB Output is correct
58 Correct 1 ms 436 KB Output is correct
59 Correct 1 ms 460 KB Output is correct
60 Correct 1 ms 452 KB Output is correct
61 Correct 3 ms 1100 KB Output is correct
62 Correct 3 ms 1092 KB Output is correct
63 Correct 5 ms 1100 KB Output is correct
64 Correct 3 ms 1100 KB Output is correct
65 Correct 5 ms 1100 KB Output is correct
66 Correct 4 ms 1068 KB Output is correct
67 Correct 5 ms 1100 KB Output is correct
68 Correct 5 ms 1128 KB Output is correct
69 Correct 4 ms 1100 KB Output is correct
70 Correct 4 ms 1100 KB Output is correct
71 Correct 4 ms 1096 KB Output is correct
72 Correct 4 ms 1076 KB Output is correct
73 Correct 4 ms 1100 KB Output is correct
74 Correct 4 ms 1088 KB Output is correct
75 Correct 4 ms 1100 KB Output is correct
76 Correct 3 ms 1100 KB Output is correct
77 Correct 3 ms 1100 KB Output is correct
78 Correct 3 ms 1100 KB Output is correct
79 Correct 5 ms 1100 KB Output is correct
80 Correct 3 ms 1100 KB Output is correct
81 Correct 331 ms 4280 KB Output is correct
82 Correct 321 ms 4296 KB Output is correct
83 Correct 374 ms 4292 KB Output is correct
84 Correct 307 ms 4292 KB Output is correct
85 Correct 325 ms 4288 KB Output is correct
86 Correct 285 ms 4372 KB Output is correct
87 Correct 317 ms 4296 KB Output is correct
88 Correct 282 ms 4296 KB Output is correct
89 Correct 312 ms 4300 KB Output is correct
90 Correct 276 ms 4296 KB Output is correct
91 Correct 294 ms 4352 KB Output is correct
92 Correct 274 ms 4296 KB Output is correct
93 Correct 292 ms 4332 KB Output is correct
94 Correct 270 ms 4296 KB Output is correct
95 Correct 286 ms 4224 KB Output is correct
96 Correct 288 ms 4408 KB Output is correct
97 Correct 297 ms 4292 KB Output is correct
98 Correct 290 ms 4412 KB Output is correct
99 Correct 292 ms 4188 KB Output is correct
100 Correct 293 ms 4296 KB Output is correct
101 Correct 306 ms 4336 KB Output is correct
102 Correct 312 ms 4360 KB Output is correct
103 Correct 295 ms 4204 KB Output is correct
104 Correct 308 ms 4292 KB Output is correct
105 Correct 270 ms 4208 KB Output is correct