Submission #667619

#	Time	Username	Problem	Language	Result	Execution time	Memory
667619		ktkerem	Editor (BOI15_edi)	C++17	100 / 100	489 ms	215172 KiB

edi

/*#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")/**/
#include<bits/stdc++.h>
/**/
//typedef int ll;
typedef long long ll;
typedef unsigned long long ull;
typedef std::string str;
//typedef vector<std::vector<ll>> vv; 
/*typedef __int128 vll;
typedef unsigned __int128 uvll;*/
#define llll std::pair<ll , ll>
#define pb push_back
#define pf push_front
#define halo cout << "hello\n"
#define fi first
#define sec second
#define vv(x) std::vector<std::vector<x>>
#define all(a) a.begin() , a.end()
const ll limit = 1e9+7; 
const ll ous = 5e5 + 7;
const ll dx[4] = {-1 , 0 , 1 , 0} , dy[4] = {0,1,0,-1};
ll n , m;std::vector<ll> ar;
struct psegt{
    psegt *l=NULL , *r=NULL;
    ll mx = 0;
};
psegt* build(ll l , ll r){
    psegt *o = new psegt;
    if(l == r){
        return o;
    }
    ll md = (l + r)/2;
    o->l = build(l , md);
    o->r = build(md+1,r);
    o->mx = std::max(o->l->mx , o->r->mx);
    return o;
}
psegt* add(ll val , ll ind , psegt *cur , ll l , ll r){
    psegt *o = new psegt;
    if(l == r){
        o->l = NULL;o->r = NULL;
        //std::cout << val << "\n";
        o->mx = val;
        return o;
    }
    o->l = cur->l;
    o->r = cur->r;
    ll md =(l + r)/2;
    if(md >= ind){
        o->l = add(val , ind , cur->l , l , md);
    }
    else{
        o->r = add(val , ind , cur->r , md+1,r);
    }
    o->mx = std::max(o->l->mx , o->r->mx);
    return o;
}
ll fnd(ll l , ll r , psegt *cur , ll nt){
    ll md = (l + r) / 2;
    //std::cout << l << " " << r << " " << nt << " " << cur->mx << std::endl;
    if(l == r){
        return cur->mx;
    }
    if(md > nt){
        return fnd(l , md , cur->l , nt);
    }
    else if(md == nt){
        return cur->l->mx;
    }
    else{
        ll o = std::max(cur->l->mx , fnd(md +1, r , cur->r , nt));
        return o;
    }
}

void solve(){
    std::vector<psegt*> v(1);
    std::vector<ll> lsans(1 , 0);
    ll n;std::cin >> n;
    v[0] = build(0 , n);
    for(ll i =1;n>=i;i++){
        ll x;std::cin >> x;
        if(x > 0){
            v.pb(add(i , 0 , v[(ll)v.size() - 1] , 0  , n));
            lsans.pb(x);
        }
        else{
            x = -x;
            ll undo = fnd(0 , n , v[(ll)v.size() - 1] , x-1) - 1;
            undo = std::max(undo , 0ll);
            lsans.pb(lsans[undo]);
            v.pb(add(i , x , v[undo] , 0 , n));
            //std::cout << "-----------" << x << " " << undo << " " << i  << std::endl;
        }
    }
    for(ll i =1;n>=i;i++){
        std::cout << lsans[i] << "\n";
    }
    return;/**/
}
signed main(){
    std::ios_base::sync_with_stdio(false);std::cin.tie(NULL);
    ll t=1;
    //std::cin >> t;
    ll o = 1;
    while(t--){ 
        //cout << "Case " << o++ << ":\n";
        solve();
    }
    return 0;
}/**/

Compilation message (stderr)

edi.cpp:5:78: warning: "/*" within comment [-Wcomment]
    5 | #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")/**/
      |                                                                               
edi.cpp: In function 'int main()':
edi.cpp:109:8: warning: unused variable 'o' [-Wunused-variable]
  109 |     ll o = 1;
      |        ^

• Subtask 1: 20 / 20
• Subtask 2: 15 / 15
• Subtask 3: 28 / 28
• Subtask 4: 37 / 37