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답안 #1013608

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1013608 2024-07-03T17:21:04 Z ReLice 3단 점프 (JOI19_jumps) C++17
100 / 100
 940 ms 119476 KB 
#include <bits/stdc++.h>
#define ll long long
#define str string
#define ins insert
#define ld long double
#define pb push_back
#define pf push_front
#define pof pop_front()
#define pob pop_back()
#define lb lower_bound
#define ub upper_bound
#define endl "\n"
#define fr first
#define sc second
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define sz size()
#define vll vector<ll>
#define bc back()
#define arr array
#define pll vector<pair<ll,ll>>
using namespace std;/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<ll, null_type,less_equal<ll>, rb_tree_tag,tree_order_statistics_node_update>*/
template<class S,class T>
bool chmin(S &a,const T &b) {
	return a>b?(a=b)==b:false;
}
template<class S,class T>
bool chmax(S &a,const T &b) {
	return a<b?(a=b)==b:false;
}
//void fre(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
void start(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}
const ll inf=1e18;
const ll mod=998244353;
const ll N=5e5+7;
const ld eps=1e-9;
struct node{
    ll ans,ab,c;
    node operator + (node b){
        node x;
        x.ans=max(ans,b.ans);
        x.ab=max(ab,b.ab);
        x.c=max(c,b.c);
        return x;
    }
};
vector<node> t(N*4);
vll add(N*4);
ll a[N];
void build(ll v,ll tl,ll tr){
    if(tl==tr){
        t[v]={a[tl],0ll,a[tl]};
        return;
    }
    ll tm=(tl+tr)/2;
    build(v*2,tl,tm);
    build(v*2+1,tm+1,tr);
    t[v]=t[v*2]+t[v*2+1];
}
void push(ll v,ll tl,ll tr){
    if(tl!=tr){
        chmax(add[v*2],add[v]);
        chmax(add[v*2+1],add[v]);
    }
    chmax(t[v].ab,add[v]);
    chmax(t[v].ans,t[v].c+add[v]);
    add[v]=0;
}
void upd(ll l,ll r,ll val,ll v,ll tl,ll tr){
    push(v,tl,tr);
    if(tl>r || tr<l)return ;
    if(l<=tl && tr<=r){
        add[v]=val;
        push(v,tl,tr);
        return;
    }
    ll tm=(tl+tr)/2;
    upd(l,r,val,v*2,tl,tm);
    upd(l,r,val,v*2+1,tm+1,tr);
    t[v]=t[v]+t[v*2];
    t[v]=t[v]+t[v*2+1];
}
ll get(ll l,ll r,ll v,ll tl,ll tr){
    push(v,tl,tr);
    if(tl>r || tr<l)return 0ll;
    if(l<=tl && tr<=r){
        //cout<<tl<<' '<<tr<<endl;
        //cout<<t[v].ans<<' '<<t[v].ab<<' '<<t[v].c<<endl;
        return t[v].ans;
    }
    ll tm=(tl+tr)/2;
    return max(get(l,r,v*2,tl,tm),get(l,r,v*2+1,tm+1,tr));
}
void solve(){
    ll i,j;
    ll n,q;
    cin>>n;
    for(i=1;i<=n;i++) cin>>a[i];
    build(1,1,n);
    cin>>q;
    vector<pll> qq(n+5);
    for(i=0;i<q;i++){
        ll l,r;
        cin>>l>>r;
        qq[l].pb({r,i});
    }
    ll ans[q];
    pll cur;
    for(i=n;i>0;i--){
        while(cur.sz && cur.bc.fr<a[i]){
            ll A=i,B=cur.bc.sc;
            //cout<<a[A]<<' '<<a[B]<<endl;
            if(2*B-A<=n)upd(2*B-A,n,a[i]+a[B],1,1,n);
            cur.pob;
        }
        if(cur.sz){
            ll A=i,B=cur.bc.sc;
            //cout<<a[A]<<' '<<a[B]<<endl;
            if(2*B-A<=n)upd(2*B-A,n,a[i]+a[B],1,1,n);
        }
        cur.pb({a[i],i});
        for(auto j : qq[i]){
            ans[j.sc]=get(i,j.fr,1,1,n);
        }
    }
    for(i=0;i<q;i++) cout<<ans[i]<<endl;
}
signed main(){
    start();
    ll t=1;
    //cin>>t;
    while(t--) solve();
    return 0;
}
/*



*/

Compilation message

jumps.cpp: In function 'void solve()':
jumps.cpp:103:10: warning: unused variable 'j' [-Wunused-variable]
  103 |     ll i,j;
      |          ^

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 63068 KB Output is correct
2 Correct 21 ms 63068 KB Output is correct
3 Correct 20 ms 62988 KB Output is correct
4 Correct 18 ms 63068 KB Output is correct
5 Correct 20 ms 63068 KB Output is correct
6 Correct 21 ms 63060 KB Output is correct
7 Correct 22 ms 63068 KB Output is correct
8 Correct 20 ms 63068 KB Output is correct
9 Correct 21 ms 63064 KB Output is correct
10 Correct 21 ms 63068 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 63068 KB Output is correct
2 Correct 21 ms 63068 KB Output is correct
3 Correct 20 ms 62988 KB Output is correct
4 Correct 18 ms 63068 KB Output is correct
5 Correct 20 ms 63068 KB Output is correct
6 Correct 21 ms 63060 KB Output is correct
7 Correct 22 ms 63068 KB Output is correct
8 Correct 20 ms 63068 KB Output is correct
9 Correct 21 ms 63064 KB Output is correct
10 Correct 21 ms 63068 KB Output is correct
11 Correct 258 ms 85328 KB Output is correct
12 Correct 255 ms 85656 KB Output is correct
13 Correct 258 ms 85328 KB Output is correct
14 Correct 247 ms 85328 KB Output is correct
15 Correct 257 ms 85588 KB Output is correct
16 Correct 259 ms 84820 KB Output is correct
17 Correct 234 ms 84856 KB Output is correct
18 Correct 272 ms 84560 KB Output is correct
19 Correct 251 ms 85472 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 143 ms 69632 KB Output is correct
2 Correct 88 ms 75076 KB Output is correct
3 Correct 94 ms 70992 KB Output is correct
4 Correct 146 ms 70996 KB Output is correct
5 Correct 145 ms 70992 KB Output is correct
6 Correct 142 ms 70436 KB Output is correct
7 Correct 136 ms 70320 KB Output is correct
8 Correct 143 ms 70320 KB Output is correct
9 Correct 143 ms 70652 KB Output is correct

Subtask #4
54.0 / 54.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 63068 KB Output is correct
2 Correct 21 ms 63068 KB Output is correct
3 Correct 20 ms 62988 KB Output is correct
4 Correct 18 ms 63068 KB Output is correct
5 Correct 20 ms 63068 KB Output is correct
6 Correct 21 ms 63060 KB Output is correct
7 Correct 22 ms 63068 KB Output is correct
8 Correct 20 ms 63068 KB Output is correct
9 Correct 21 ms 63064 KB Output is correct
10 Correct 21 ms 63068 KB Output is correct
11 Correct 258 ms 85328 KB Output is correct
12 Correct 255 ms 85656 KB Output is correct
13 Correct 258 ms 85328 KB Output is correct
14 Correct 247 ms 85328 KB Output is correct
15 Correct 257 ms 85588 KB Output is correct
16 Correct 259 ms 84820 KB Output is correct
17 Correct 234 ms 84856 KB Output is correct
18 Correct 272 ms 84560 KB Output is correct
19 Correct 251 ms 85472 KB Output is correct
20 Correct 143 ms 69632 KB Output is correct
21 Correct 88 ms 75076 KB Output is correct
22 Correct 94 ms 70992 KB Output is correct
23 Correct 146 ms 70996 KB Output is correct
24 Correct 145 ms 70992 KB Output is correct
25 Correct 142 ms 70436 KB Output is correct
26 Correct 136 ms 70320 KB Output is correct
27 Correct 143 ms 70320 KB Output is correct
28 Correct 143 ms 70652 KB Output is correct
29 Correct 940 ms 111700 KB Output is correct
30 Correct 693 ms 119476 KB Output is correct
31 Correct 736 ms 111624 KB Output is correct
32 Correct 827 ms 111552 KB Output is correct
33 Correct 901 ms 111700 KB Output is correct
34 Correct 832 ms 109180 KB Output is correct
35 Correct 844 ms 108908 KB Output is correct
36 Correct 827 ms 108912 KB Output is correct
37 Correct 798 ms 110488 KB Output is correct
38 Correct 608 ms 114156 KB Output is correct
39 Correct 616 ms 114168 KB Output is correct
40 Correct 586 ms 110928 KB Output is correct
41 Correct 599 ms 110500 KB Output is correct
42 Correct 590 ms 110416 KB Output is correct
43 Correct 555 ms 112228 KB Output is correct
44 Correct 618 ms 114512 KB Output is correct
45 Correct 649 ms 114532 KB Output is correct
46 Correct 643 ms 111264 KB Output is correct
47 Correct 700 ms 111020 KB Output is correct
48 Correct 654 ms 110868 KB Output is correct
49 Correct 638 ms 112900 KB Output is correct
50 Correct 701 ms 114768 KB Output is correct
51 Correct 690 ms 114772 KB Output is correct
52 Correct 677 ms 112476 KB Output is correct
53 Correct 675 ms 111952 KB Output is correct
54 Correct 753 ms 112000 KB Output is correct
55 Correct 708 ms 113488 KB Output is correct