oj.uz

Submission #92055

# Submission time Handle Problem Language Result Execution time Memory
92055 2019-01-01T10:04:48 Z Kamisama Election Campaign (JOI15_election_campaign) C++14
100 / 100
 293 ms 25080 KB 
#include <iostream>
#include <vector>
using namespace std;
const int maxn=1e5+7;
int n,m;
int par[maxn],lv[maxn],f[maxn][18];
int in[maxn],out[maxn],bit[maxn],dp[maxn];
vector<int> adj[maxn],road[maxn];
struct Query{int a,b,c;}q[maxn];
inline void Dfs(const int &u,const int &p){
    static int nVisit=0;
    in[u]=++nVisit;
    par[u]=p;
    lv[u]=lv[p]+1;
    f[u][0]=p;
    for(int i=1;i<18;i++) f[u][i]=f[f[u][i-1]][i-1];
    for(int v: adj[u]) if(v!=p) Dfs(v,u);
    out[u]=nVisit;
}
inline int Jump(int u,int k){for(int cur=0;k;k>>=1,cur++) if(k&1) u=f[u][cur];return u;}
inline int Lca(int u,int v){
    if(lv[u]>lv[v]) swap(u,v);
    v=Jump(v,lv[v]-lv[u]);
    if(u==v) return u;
    for(int i=17;i>=0;i--) if(f[u][i]!=f[v][i]) u=f[u][i],v=f[v][i];
    return par[u];
}
inline void Update(int x,const int &val){for(;x<=n;x+=x&-x) bit[x]+=val;}
inline int Get(int x){int res=0;for(;x;x-=x&-x) res+=bit[x];return res;}
inline void Solve(const int &u,const int &p){
    int sumChild=0;
    for(int v: adj[u]) if(v!=p){
        Solve(v,u);
        sumChild+=dp[v];
    }
    dp[u]=sumChild;
    for(int i: road[u]){
        int a=q[i].a,b=q[i].b,c=q[i].c;
        dp[u]=max(dp[u],sumChild+Get(in[a])+Get(in[b])+c);
    }
    Update(in[u],sumChild-dp[u]); Update(out[u]+1,dp[u]-sumChild);
}
inline void Read(int &x){register char c;for(c=getchar();c>'9'||c<'0';c=getchar());for(x=0;'0'<=c&&c<='9';c=getchar()) x=x*10+c-'0';}
inline void Write(const int &x){if(x>9) Write(x/10);putchar(x%10+'0');}
int main(){
    Read(n);
    for(int i=1;i<n;i++){
        int u,v;
        Read(u); Read(v);
        adj[u].push_back(v);
        adj[v].push_back(u);
    } Dfs(1,0); Read(m);
    for(int i=1;i<=m;i++){
        Read(q[i].a);Read(q[i].b);Read(q[i].c);
        road[Lca(q[i].a,q[i].b)].push_back(i);
    } Solve(1,0); Write(dp[1]);
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct
3 Correct 5 ms 4984 KB Output is correct
4 Correct 6 ms 5240 KB Output is correct
5 Correct 126 ms 17692 KB Output is correct
6 Correct 48 ms 22648 KB Output is correct
7 Correct 104 ms 21084 KB Output is correct
8 Correct 87 ms 18172 KB Output is correct
9 Correct 106 ms 19960 KB Output is correct
10 Correct 94 ms 18184 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4984 KB Output is correct
2 Correct 5 ms 4984 KB Output is correct
3 Correct 6 ms 5240 KB Output is correct
4 Correct 98 ms 25080 KB Output is correct
5 Correct 106 ms 25060 KB Output is correct
6 Correct 78 ms 24960 KB Output is correct
7 Correct 93 ms 24952 KB Output is correct
8 Correct 89 ms 25080 KB Output is correct
9 Correct 86 ms 25080 KB Output is correct
10 Correct 87 ms 24952 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4984 KB Output is correct
2 Correct 5 ms 4984 KB Output is correct
3 Correct 6 ms 5240 KB Output is correct
4 Correct 98 ms 25080 KB Output is correct
5 Correct 106 ms 25060 KB Output is correct
6 Correct 78 ms 24960 KB Output is correct
7 Correct 93 ms 24952 KB Output is correct
8 Correct 89 ms 25080 KB Output is correct
9 Correct 86 ms 25080 KB Output is correct
10 Correct 87 ms 24952 KB Output is correct
11 Correct 12 ms 5880 KB Output is correct
12 Correct 98 ms 24924 KB Output is correct
13 Correct 106 ms 24980 KB Output is correct
14 Correct 100 ms 25080 KB Output is correct
15 Correct 133 ms 24952 KB Output is correct
16 Correct 106 ms 24940 KB Output is correct
17 Correct 137 ms 24952 KB Output is correct
18 Correct 117 ms 25080 KB Output is correct
19 Correct 126 ms 24952 KB Output is correct
20 Correct 107 ms 24912 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 146 ms 19428 KB Output is correct
2 Correct 86 ms 24824 KB Output is correct
3 Correct 293 ms 22824 KB Output is correct
4 Correct 134 ms 19704 KB Output is correct
5 Correct 198 ms 22580 KB Output is correct
6 Correct 109 ms 19700 KB Output is correct
7 Correct 234 ms 22392 KB Output is correct
8 Correct 188 ms 19796 KB Output is correct
9 Correct 108 ms 24972 KB Output is correct
10 Correct 197 ms 21772 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct
3 Correct 5 ms 4984 KB Output is correct
4 Correct 6 ms 5240 KB Output is correct
5 Correct 126 ms 17692 KB Output is correct
6 Correct 48 ms 22648 KB Output is correct
7 Correct 104 ms 21084 KB Output is correct
8 Correct 87 ms 18172 KB Output is correct
9 Correct 106 ms 19960 KB Output is correct
10 Correct 94 ms 18184 KB Output is correct
11 Correct 6 ms 5240 KB Output is correct
12 Correct 6 ms 5240 KB Output is correct
13 Correct 7 ms 5240 KB Output is correct
14 Correct 6 ms 5240 KB Output is correct
15 Correct 6 ms 5240 KB Output is correct
16 Correct 6 ms 5244 KB Output is correct
17 Correct 6 ms 5240 KB Output is correct
18 Correct 6 ms 5368 KB Output is correct
19 Correct 6 ms 5240 KB Output is correct
20 Correct 6 ms 5240 KB Output is correct

Subtask #6
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct
3 Correct 5 ms 4984 KB Output is correct
4 Correct 6 ms 5240 KB Output is correct
5 Correct 126 ms 17692 KB Output is correct
6 Correct 48 ms 22648 KB Output is correct
7 Correct 104 ms 21084 KB Output is correct
8 Correct 87 ms 18172 KB Output is correct
9 Correct 106 ms 19960 KB Output is correct
10 Correct 94 ms 18184 KB Output is correct
11 Correct 5 ms 4984 KB Output is correct
12 Correct 5 ms 4984 KB Output is correct
13 Correct 6 ms 5240 KB Output is correct
14 Correct 98 ms 25080 KB Output is correct
15 Correct 106 ms 25060 KB Output is correct
16 Correct 78 ms 24960 KB Output is correct
17 Correct 93 ms 24952 KB Output is correct
18 Correct 89 ms 25080 KB Output is correct
19 Correct 86 ms 25080 KB Output is correct
20 Correct 87 ms 24952 KB Output is correct
21 Correct 12 ms 5880 KB Output is correct
22 Correct 98 ms 24924 KB Output is correct
23 Correct 106 ms 24980 KB Output is correct
24 Correct 100 ms 25080 KB Output is correct
25 Correct 133 ms 24952 KB Output is correct
26 Correct 106 ms 24940 KB Output is correct
27 Correct 137 ms 24952 KB Output is correct
28 Correct 117 ms 25080 KB Output is correct
29 Correct 126 ms 24952 KB Output is correct
30 Correct 107 ms 24912 KB Output is correct
31 Correct 146 ms 19428 KB Output is correct
32 Correct 86 ms 24824 KB Output is correct
33 Correct 293 ms 22824 KB Output is correct
34 Correct 134 ms 19704 KB Output is correct
35 Correct 198 ms 22580 KB Output is correct
36 Correct 109 ms 19700 KB Output is correct
37 Correct 234 ms 22392 KB Output is correct
38 Correct 188 ms 19796 KB Output is correct
39 Correct 108 ms 24972 KB Output is correct
40 Correct 197 ms 21772 KB Output is correct
41 Correct 6 ms 5240 KB Output is correct
42 Correct 6 ms 5240 KB Output is correct
43 Correct 7 ms 5240 KB Output is correct
44 Correct 6 ms 5240 KB Output is correct
45 Correct 6 ms 5240 KB Output is correct
46 Correct 6 ms 5244 KB Output is correct
47 Correct 6 ms 5240 KB Output is correct
48 Correct 6 ms 5368 KB Output is correct
49 Correct 6 ms 5240 KB Output is correct
50 Correct 6 ms 5240 KB Output is correct
51 Correct 191 ms 19820 KB Output is correct
52 Correct 120 ms 24796 KB Output is correct
53 Correct 237 ms 21744 KB Output is correct
54 Correct 130 ms 19844 KB Output is correct
55 Correct 158 ms 19696 KB Output is correct
56 Correct 97 ms 24824 KB Output is correct
57 Correct 150 ms 22312 KB Output is correct
58 Correct 95 ms 19740 KB Output is correct
59 Correct 138 ms 19784 KB Output is correct
60 Correct 124 ms 24828 KB Output is correct
61 Correct 245 ms 22456 KB Output is correct
62 Correct 106 ms 19760 KB Output is correct
63 Correct 175 ms 19404 KB Output is correct
64 Correct 132 ms 24824 KB Output is correct
65 Correct 254 ms 22392 KB Output is correct
66 Correct 93 ms 19768 KB Output is correct
67 Correct 129 ms 19512 KB Output is correct
68 Correct 115 ms 24924 KB Output is correct
69 Correct 192 ms 21724 KB Output is correct
70 Correct 130 ms 19784 KB Output is correct