oj.uz

Submission #916079

# Submission time Handle Problem Language Result Execution time Memory
916079 2024-01-25T08:45:56 Z yeediot Let's Win the Election (JOI22_ho_t3) C++14
100 / 100
 268 ms 5132 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long 
#define pb push_back
#define pii pair<int,int>
#define F first
#define S second
#define all(X) X.begin(),X.end()
#define chmax(a,b) a=max(a,b)
#define chmin(a,b) a=min(a,b)
#ifdef local
void setio(){freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
void setio(){}
#define debug(x...)
#endif
bool cmp(pii a,pii b){
    if(a.S!=b.S)return a.S<b.S;
    return a.F<b.F;
}
const int inf=2e12;
signed main(){
    cout<<fixed<<setprecision(10);
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    setio();
    int n,k;
    cin>>n>>k;
    vector<pii>vec;
    vec.pb({0,0});
    for(int i=0;i<n;i++){
        int a,b;
        cin>>a>>b;
        vec.pb({a,b});
        if(b==-1){
            vec[i+1].S=inf;
        }
    }
    sort(all(vec),cmp);
    vector<vector<int>>suf(n+2,vector<int>(k+2,0));
    for(int i=1;i<=k;i++){
        multiset<int>st;
        int sum=0;
        for(int j=n;j>=1;j--){
            st.insert(vec[j].F);
            sum+=vec[j].F;
            if((int)(st.size())>i){
                sum-=*prev(st.end());
                st.erase(prev(st.end()));
            }
            if((int)(st.size())==i){
                suf[j][i]=sum;
            }
        }
    }
    double ans=inf;
    for(int p=0;p<=k;p++){
        vector<vector<double>>dp(n+1,vector<double>(p+1,inf));
        dp[0][0]=0;
        for(int i=1;i<=k;i++){
            for(int j=0;j<=p;j++){
                if(j)dp[i][j]=dp[i-1][j-1]+(double)vec[i].S/j;
                dp[i][j]=min(dp[i][j],dp[i-1][j]+(double)vec[i].F/(p+1));
                //cout<<i<<' '<<j<<' '<<dp[i][j]<<' '<<vec[i].F<<'\n';
                if(j==p){
                    chmin(ans,dp[i][j]+(double)suf[i+1][k-i]/(p+1));
                    //cout<<i<<' '<<j<<' '<<ans<<' '<<dp[i][j]<<'\n';
                }
            }
        }
        //cout<<ans<<'\n';
    }
    cout<<min((double)suf[1][k],ans)<<'\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 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 3 ms 900 KB Output is correct
6 Correct 16 ms 1712 KB Output is correct
7 Correct 51 ms 2980 KB Output is correct
8 Correct 136 ms 3832 KB Output is correct
9 Correct 240 ms 4728 KB Output is correct
10 Correct 103 ms 3472 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 1 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 3 ms 900 KB Output is correct
6 Correct 16 ms 1712 KB Output is correct
7 Correct 51 ms 2980 KB Output is correct
8 Correct 136 ms 3832 KB Output is correct
9 Correct 240 ms 4728 KB Output is correct
10 Correct 103 ms 3472 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 19 ms 1904 KB Output is correct
13 Correct 18 ms 1880 KB Output is correct
14 Correct 18 ms 2076 KB Output is correct
15 Correct 106 ms 3904 KB Output is correct
16 Correct 104 ms 3640 KB Output is correct
17 Correct 108 ms 3740 KB Output is correct
18 Correct 244 ms 4796 KB Output is correct
19 Correct 268 ms 4804 KB Output is correct
20 Correct 238 ms 4796 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 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 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 452 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 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 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 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 452 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 600 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 600 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 452 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 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 1 ms 460 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 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 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 452 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 600 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 600 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 452 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 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 1 ms 460 KB Output is correct
41 Correct 1 ms 456 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 356 KB Output is correct
45 Correct 1 ms 360 KB Output is correct
46 Correct 1 ms 356 KB Output is correct
47 Correct 1 ms 616 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 2 ms 616 KB Output is correct
50 Correct 2 ms 616 KB Output is correct
51 Correct 2 ms 616 KB Output is correct
52 Correct 2 ms 616 KB Output is correct
53 Correct 1 ms 868 KB Output is correct
54 Correct 1 ms 616 KB Output is correct
55 Correct 1 ms 616 KB Output is correct
56 Correct 1 ms 604 KB Output is correct
57 Correct 1 ms 604 KB Output is correct
58 Correct 1 ms 604 KB Output is correct
59 Correct 2 ms 608 KB Output is correct
60 Correct 1 ms 456 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 241 ms 5132 KB Output is correct
2 Correct 239 ms 4776 KB Output is correct
3 Correct 248 ms 4816 KB Output is correct
4 Correct 247 ms 4760 KB Output is correct
5 Correct 237 ms 4828 KB Output is correct
6 Correct 239 ms 4928 KB Output is correct
7 Correct 254 ms 4800 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 1 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 3 ms 900 KB Output is correct
6 Correct 16 ms 1712 KB Output is correct
7 Correct 51 ms 2980 KB Output is correct
8 Correct 136 ms 3832 KB Output is correct
9 Correct 240 ms 4728 KB Output is correct
10 Correct 103 ms 3472 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 19 ms 1904 KB Output is correct
13 Correct 18 ms 1880 KB Output is correct
14 Correct 18 ms 2076 KB Output is correct
15 Correct 106 ms 3904 KB Output is correct
16 Correct 104 ms 3640 KB Output is correct
17 Correct 108 ms 3740 KB Output is correct
18 Correct 244 ms 4796 KB Output is correct
19 Correct 268 ms 4804 KB Output is correct
20 Correct 238 ms 4796 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 348 KB Output is correct
27 Correct 0 ms 604 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 452 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 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 600 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 0 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 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 600 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 0 ms 452 KB Output is correct
54 Correct 0 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 0 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 460 KB Output is correct
61 Correct 1 ms 456 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 356 KB Output is correct
65 Correct 1 ms 360 KB Output is correct
66 Correct 1 ms 356 KB Output is correct
67 Correct 1 ms 616 KB Output is correct
68 Correct 1 ms 460 KB Output is correct
69 Correct 2 ms 616 KB Output is correct
70 Correct 2 ms 616 KB Output is correct
71 Correct 2 ms 616 KB Output is correct
72 Correct 2 ms 616 KB Output is correct
73 Correct 1 ms 868 KB Output is correct
74 Correct 1 ms 616 KB Output is correct
75 Correct 1 ms 616 KB Output is correct
76 Correct 1 ms 604 KB Output is correct
77 Correct 1 ms 604 KB Output is correct
78 Correct 1 ms 604 KB Output is correct
79 Correct 2 ms 608 KB Output is correct
80 Correct 1 ms 456 KB Output is correct
81 Correct 241 ms 5132 KB Output is correct
82 Correct 239 ms 4776 KB Output is correct
83 Correct 248 ms 4816 KB Output is correct
84 Correct 247 ms 4760 KB Output is correct
85 Correct 237 ms 4828 KB Output is correct
86 Correct 239 ms 4928 KB Output is correct
87 Correct 254 ms 4800 KB Output is correct
88 Correct 3 ms 940 KB Output is correct
89 Correct 3 ms 904 KB Output is correct
90 Correct 13 ms 1684 KB Output is correct
91 Correct 13 ms 1672 KB Output is correct
92 Correct 52 ms 3196 KB Output is correct
93 Correct 55 ms 3192 KB Output is correct
94 Correct 125 ms 3664 KB Output is correct
95 Correct 126 ms 3660 KB Output is correct
96 Correct 186 ms 4244 KB Output is correct
97 Correct 192 ms 4440 KB Output is correct
98 Correct 103 ms 3528 KB Output is correct
99 Correct 102 ms 3428 KB Output is correct
100 Correct 104 ms 3964 KB Output is correct
101 Correct 106 ms 3744 KB Output is correct
102 Correct 119 ms 3468 KB Output is correct
103 Correct 108 ms 3676 KB Output is correct
104 Correct 108 ms 3924 KB Output is correct
105 Correct 108 ms 3596 KB Output is correct