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답안 #544620

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
544620 2022-04-02T13:54:46 Z leaked Worst Reporter 4 (JOI21_worst_reporter4) C++14
14 / 100
 2000 ms 79892 KB 
#include <bits/stdc++.h>

#define f first
#define s second
#define m_p make_pair
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define vec vector
#define pb push_back
#define sz(x) (int)(x).size()
#define pw(x) (1LL<<(x))
#define fast_resp ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef long double ld;
typedef pair<int,ll> pil;
template<class T> bool umin(T &a,const T &b){return (a>b?a=b,1:0);}
template<class T> bool umax(T &a,const T &b){return (a<b?a=b,1:0);}
const int N=2e5+1;
const ll inf=1e18;
vec<int> g[N];
int c[N],a[N],h[N];
int tt=1;
struct segtree{
    ll t[20*N];
    int l[20*N],r[20*N];
    ll d1,d2;
    segtree(){
        t[0]=0;
        fill(t,t+20*N,0);
        fill(l,l+20*N,0);
        fill(r,r+20*N,0);
    }
    void upd(int i,ll x,int &v,int tl=0,int tr=N-1){
        if(!v)
            v=tt++;
        if(tl==tr){
//            cout<<"UPD "<<v<<' '<<tl<<' '<<x<<endl;
            t[v]=x;
            return;
        }
        int tm=(tl+tr)>>1;
        if(tm>=i)
            upd(i,x,l[v],tl,tm);
        else
            upd(i,x,r[v],tm+1,tr);
//        cout<<"YO "<<v<<' '<<l[v]<<' '<<r[v]<<endl;
        t[v]=min(t[l[v]],t[r[v]]);
    }
    ll get(int l1,int r1,int v,int tl=0,int tr=N-1){
        if(!v || tl>r1 || tr<l1)
            return 0;
        if(tl>=l1&&tr<=r1)
            return t[v];
        int tm=(tl+tr)>>1;
        return min(get(l1,r1,l[v],tl,tm),get(l1,r1,r[v],tm+1,tr));
    }
    int mg(int v,int u,int tl,int tr){
        if(!v && !u)
            return 0;
        if(tl==tr){
            umin(d1,t[v]);umin(d2,t[u]);

            if(!v){
                t[u]=d1+d2;
//                cerr<<"HEYT "<<d1+d2<<endl;
                return u;
            }
            t[v]=d1+d2;
            return v;
        }
        int tm=(tl+tr)>>1;
        if(v){
            r[v]=mg(r[v],r[u],tm+1,tr);
            l[v]=mg(l[v],l[u],tl,tm);
            t[v]=min(t[l[v]],t[r[v]]);
//            cout<<"WT "<<v<<' '<<t[v]<<' '<<tl<<' '<<tr<<endl;
            return v;
        }
        else{
            r[u]=mg(r[v],r[u],tm+1,tr);
            l[u]=mg(l[v],l[u],tl,tm);
            t[u]=min(t[l[u]],t[r[u]]);
//            cout<<"WT "<<u<<' '<<t[u]<<' '<<tl<<' '<<tr<<endl;

            return u;
        }
    }
    int Merge(int v,int u){
        d1=d2=0;
//
        return mg(v,u,0,N-1);
    }
}sega;
ll toadd=0;
//map<int,ll> mp;
int root[N];

void dfs(int v){
//    cout<<"DFS "<<v<<endl;
    for(auto &z : g[v]){
        dfs(z);
        root[v]=sega.Merge(root[v],root[z]);
//        cerr<<"EBAL "<<root[v]<<endl;
    }
//    cout<<"W "<<root[v]<<endl;
//    cout<<sega.get(roo)
//    cout<<"HEY "<<sega.get(root[v],h[v],N-1)<<endl;
    sega.upd(h[v],sega.get(h[v],N-1,root[v])-c[v],root[v]);
}
signed main(){
    fast_resp;
    int n;
    cin>>n;
    vec<int>kek;
    ll sm=0;
    for(int i=0;i<n;i++){
        cin>>a[i]>>h[i]>>c[i];--a[i];
        if(a[i]!=i) g[a[i]].pb(i);
        kek.pb(h[i]);sm+=c[i];
    }
    sort(all(kek));kek.erase(unique(all(kek)),kek.end());
    for(int i=0;i<n;i++) h[i]=lower_bound(all(kek),h[i])-kek.begin();
    dfs(0);
    cout<<sm+sega.get(0,N-1,root[0]);
    return 0;
}
/*
3
1 3 6
1 2 5
1 5 6
6
1 6 5
1 3 6
1 8 4
3 4 9
2 2 5
2 5 6
2
1 89 964898447
2 20 952129455
*/

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 67608 KB Output is correct
2 Correct 28 ms 67660 KB Output is correct
3 Correct 28 ms 67524 KB Output is correct
4 Correct 29 ms 67544 KB Output is correct
5 Correct 44 ms 67912 KB Output is correct
6 Correct 38 ms 67912 KB Output is correct
7 Correct 32 ms 67868 KB Output is correct
8 Correct 44 ms 67952 KB Output is correct
9 Correct 41 ms 67864 KB Output is correct
10 Correct 37 ms 67868 KB Output is correct
11 Correct 30 ms 67928 KB Output is correct
12 Correct 331 ms 68468 KB Output is correct
13 Correct 30 ms 68424 KB Output is correct
14 Correct 265 ms 68168 KB Output is correct
15 Correct 39 ms 68200 KB Output is correct
16 Correct 39 ms 67924 KB Output is correct
17 Correct 34 ms 67924 KB Output is correct
18 Correct 37 ms 67864 KB Output is correct
19 Correct 431 ms 68320 KB Output is correct
20 Correct 41 ms 68188 KB Output is correct
21 Correct 31 ms 68108 KB Output is correct
22 Correct 432 ms 68024 KB Output is correct
23 Correct 40 ms 67916 KB Output is correct
24 Correct 455 ms 68192 KB Output is correct
25 Correct 35 ms 68172 KB Output is correct
26 Correct 184 ms 68496 KB Output is correct
27 Correct 321 ms 68116 KB Output is correct
28 Correct 257 ms 68240 KB Output is correct
29 Correct 229 ms 68364 KB Output is correct
30 Correct 130 ms 68236 KB Output is correct
31 Correct 116 ms 68132 KB Output is correct

Subtask #2
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 67608 KB Output is correct
2 Correct 28 ms 67660 KB Output is correct
3 Correct 28 ms 67524 KB Output is correct
4 Correct 29 ms 67544 KB Output is correct
5 Correct 44 ms 67912 KB Output is correct
6 Correct 38 ms 67912 KB Output is correct
7 Correct 32 ms 67868 KB Output is correct
8 Correct 44 ms 67952 KB Output is correct
9 Correct 41 ms 67864 KB Output is correct
10 Correct 37 ms 67868 KB Output is correct
11 Correct 30 ms 67928 KB Output is correct
12 Correct 331 ms 68468 KB Output is correct
13 Correct 30 ms 68424 KB Output is correct
14 Correct 265 ms 68168 KB Output is correct
15 Correct 39 ms 68200 KB Output is correct
16 Correct 39 ms 67924 KB Output is correct
17 Correct 34 ms 67924 KB Output is correct
18 Correct 37 ms 67864 KB Output is correct
19 Correct 431 ms 68320 KB Output is correct
20 Correct 41 ms 68188 KB Output is correct
21 Correct 31 ms 68108 KB Output is correct
22 Correct 432 ms 68024 KB Output is correct
23 Correct 40 ms 67916 KB Output is correct
24 Correct 455 ms 68192 KB Output is correct
25 Correct 35 ms 68172 KB Output is correct
26 Correct 184 ms 68496 KB Output is correct
27 Correct 321 ms 68116 KB Output is correct
28 Correct 257 ms 68240 KB Output is correct
29 Correct 229 ms 68364 KB Output is correct
30 Correct 130 ms 68236 KB Output is correct
31 Correct 116 ms 68132 KB Output is correct
32 Correct 46 ms 67916 KB Output is correct
33 Execution timed out 2081 ms 79892 KB Time limit exceeded
34 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 67608 KB Output is correct
2 Correct 28 ms 67660 KB Output is correct
3 Correct 28 ms 67524 KB Output is correct
4 Correct 29 ms 67544 KB Output is correct
5 Correct 44 ms 67912 KB Output is correct
6 Correct 38 ms 67912 KB Output is correct
7 Correct 32 ms 67868 KB Output is correct
8 Correct 44 ms 67952 KB Output is correct
9 Correct 41 ms 67864 KB Output is correct
10 Correct 37 ms 67868 KB Output is correct
11 Correct 30 ms 67928 KB Output is correct
12 Correct 331 ms 68468 KB Output is correct
13 Correct 30 ms 68424 KB Output is correct
14 Correct 265 ms 68168 KB Output is correct
15 Correct 39 ms 68200 KB Output is correct
16 Correct 39 ms 67924 KB Output is correct
17 Correct 34 ms 67924 KB Output is correct
18 Correct 37 ms 67864 KB Output is correct
19 Correct 431 ms 68320 KB Output is correct
20 Correct 41 ms 68188 KB Output is correct
21 Correct 31 ms 68108 KB Output is correct
22 Correct 432 ms 68024 KB Output is correct
23 Correct 40 ms 67916 KB Output is correct
24 Correct 455 ms 68192 KB Output is correct
25 Correct 35 ms 68172 KB Output is correct
26 Correct 184 ms 68496 KB Output is correct
27 Correct 321 ms 68116 KB Output is correct
28 Correct 257 ms 68240 KB Output is correct
29 Correct 229 ms 68364 KB Output is correct
30 Correct 130 ms 68236 KB Output is correct
31 Correct 116 ms 68132 KB Output is correct
32 Correct 46 ms 67916 KB Output is correct
33 Execution timed out 2081 ms 79892 KB Time limit exceeded
34 Halted 0 ms 0 KB -