oj.uz

답안 #1013587

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1013587 2024-07-03T16:51:07 Z Aiperiii 3단 점프 (JOI19_jumps) C++14
100 / 100
 758 ms 106692 KB 
#include <bits/stdc++.h>
#define int long long
#define all(x) x.begin(),x.end()
#define ff first
#define ss second
#define pb push_back
using namespace std;
const int N=5e5+5;
int mx[N*4],ans[N*4],add[N*4],a[N];
vector <pair <int,int> > qu[N];
vector <int> ab[N];
void build(int v,int tl,int tr){
    if(tl==tr)mx[v]=a[tl];
    else{
        int tm=(tl+tr)/2;
        build(v*2,tl,tm);
        build(v*2+1,tm+1,tr);
        mx[v]=max(mx[v*2],mx[v*2+1]);
    }
}
void push(int v,int tl,int tr){
    ans[v]=max(ans[v],add[v]+mx[v]);
    if(tl!=tr){
        add[v*2]=max(add[v*2],add[v]);
        add[v*2+1]=max(add[v*2+1],add[v]);
    }
    add[v]=0;
}
void update(int v,int tl,int tr,int l,int r,int val){
    if(add[v])push(v,tl,tr);
    if(r<tl or tr<l)return;
    if(l<=tl && tr<=r){
        add[v]=val;
        push(v,tl,tr);
        return;
    }
    int tm=(tl+tr)/2;
    update(v*2,tl,tm,l,r,val);
    update(v*2+1,tm+1,tr,l,r,val);
    ans[v]=max(ans[v*2],ans[v*2+1]);
}
int get(int v,int tl,int tr,int l,int r){
    if(add[v])push(v,tl,tr);
    if(r<tl or tr<l)return 0;
    if(l<=tl && tr<=r)return ans[v];
    int tm=(tl+tr)/2;
    return max(get(v*2,tl,tm,l,r),get(v*2+1,tm+1,tr,l,r));
    
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
    }
    build(1,1,n);
    
    int q;
    cin>>q;
    for(int i=0;i<q;i++){
        int l,r;
        cin>>l>>r;
        qu[l].pb({r,i});
    }
    stack <int> st;
    for(int i=n;i>=1;i--){
        while(!st.empty() && a[st.top()]<=a[i]){
            ab[i].pb(st.top());
            st.pop();
        }
        if(!st.empty())ab[i].pb(st.top());
        st.push(i);
    }
    vector <int> res(q);
    for(int l=n;l>=1;l--){
        for(auto b : ab[l]){
            update(1,1,n,b*2-l,n,a[l]+a[b]);
        }
        for(auto x : qu[l]){
            res[x.ss]=get(1,1,n,l,x.ff);
        }
    }
    for(auto x : res)cout<<x<<"\n";
}



/*

 */

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 23900 KB Output is correct
2 Correct 10 ms 23900 KB Output is correct
3 Correct 9 ms 23900 KB Output is correct
4 Correct 10 ms 23900 KB Output is correct
5 Correct 10 ms 23900 KB Output is correct
6 Correct 10 ms 23996 KB Output is correct
7 Correct 9 ms 23900 KB Output is correct
8 Correct 9 ms 23900 KB Output is correct
9 Correct 10 ms 23900 KB Output is correct
10 Correct 13 ms 23740 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 23900 KB Output is correct
2 Correct 10 ms 23900 KB Output is correct
3 Correct 9 ms 23900 KB Output is correct
4 Correct 10 ms 23900 KB Output is correct
5 Correct 10 ms 23900 KB Output is correct
6 Correct 10 ms 23996 KB Output is correct
7 Correct 9 ms 23900 KB Output is correct
8 Correct 9 ms 23900 KB Output is correct
9 Correct 10 ms 23900 KB Output is correct
10 Correct 13 ms 23740 KB Output is correct
11 Correct 226 ms 51384 KB Output is correct
12 Correct 194 ms 51280 KB Output is correct
13 Correct 273 ms 51344 KB Output is correct
14 Correct 197 ms 51328 KB Output is correct
15 Correct 207 ms 51536 KB Output is correct
16 Correct 199 ms 50680 KB Output is correct
17 Correct 200 ms 50720 KB Output is correct
18 Correct 197 ms 50512 KB Output is correct
19 Correct 185 ms 51284 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 115 ms 46928 KB Output is correct
2 Correct 65 ms 47320 KB Output is correct
3 Correct 81 ms 45672 KB Output is correct
4 Correct 110 ms 46928 KB Output is correct
5 Correct 111 ms 47008 KB Output is correct
6 Correct 107 ms 46276 KB Output is correct
7 Correct 105 ms 46080 KB Output is correct
8 Correct 104 ms 46160 KB Output is correct
9 Correct 117 ms 46544 KB Output is correct

Subtask #4
54.0 / 54.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 23900 KB Output is correct
2 Correct 10 ms 23900 KB Output is correct
3 Correct 9 ms 23900 KB Output is correct
4 Correct 10 ms 23900 KB Output is correct
5 Correct 10 ms 23900 KB Output is correct
6 Correct 10 ms 23996 KB Output is correct
7 Correct 9 ms 23900 KB Output is correct
8 Correct 9 ms 23900 KB Output is correct
9 Correct 10 ms 23900 KB Output is correct
10 Correct 13 ms 23740 KB Output is correct
11 Correct 226 ms 51384 KB Output is correct
12 Correct 194 ms 51280 KB Output is correct
13 Correct 273 ms 51344 KB Output is correct
14 Correct 197 ms 51328 KB Output is correct
15 Correct 207 ms 51536 KB Output is correct
16 Correct 199 ms 50680 KB Output is correct
17 Correct 200 ms 50720 KB Output is correct
18 Correct 197 ms 50512 KB Output is correct
19 Correct 185 ms 51284 KB Output is correct
20 Correct 115 ms 46928 KB Output is correct
21 Correct 65 ms 47320 KB Output is correct
22 Correct 81 ms 45672 KB Output is correct
23 Correct 110 ms 46928 KB Output is correct
24 Correct 111 ms 47008 KB Output is correct
25 Correct 107 ms 46276 KB Output is correct
26 Correct 105 ms 46080 KB Output is correct
27 Correct 104 ms 46160 KB Output is correct
28 Correct 117 ms 46544 KB Output is correct
29 Correct 699 ms 104020 KB Output is correct
30 Correct 601 ms 105044 KB Output is correct
31 Correct 568 ms 100952 KB Output is correct
32 Correct 751 ms 104020 KB Output is correct
33 Correct 673 ms 104020 KB Output is correct
34 Correct 758 ms 101672 KB Output is correct
35 Correct 721 ms 101460 KB Output is correct
36 Correct 720 ms 101416 KB Output is correct
37 Correct 705 ms 102952 KB Output is correct
38 Correct 488 ms 106612 KB Output is correct
39 Correct 486 ms 106692 KB Output is correct
40 Correct 526 ms 103248 KB Output is correct
41 Correct 478 ms 102736 KB Output is correct
42 Correct 475 ms 102900 KB Output is correct
43 Correct 453 ms 104420 KB Output is correct
44 Correct 541 ms 106224 KB Output is correct
45 Correct 530 ms 106320 KB Output is correct
46 Correct 523 ms 103248 KB Output is correct
47 Correct 503 ms 102740 KB Output is correct
48 Correct 542 ms 102732 KB Output is correct
49 Correct 574 ms 104708 KB Output is correct
50 Correct 582 ms 105472 KB Output is correct
51 Correct 588 ms 105600 KB Output is correct
52 Correct 576 ms 103196 KB Output is correct
53 Correct 634 ms 102692 KB Output is correct
54 Correct 573 ms 102736 KB Output is correct
55 Correct 666 ms 104528 KB Output is correct