Submission #1159383

#	Time	Username	Problem	Language	Result	Execution time	Memory
1159383		gazizmadi11	The Potion of Great Power (CEOI20_potion)	C++20	31 / 100	283 ms	61604 KiB

potion

//gm  --- akezhon
#include <bits/stdc++.h>
// #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define pb push_back
#define pf push_front
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define tm (tl+tr)/2
#define TL v+v, tl, tm
#define TR v+v+1, tm+1, tr
#define DA l <= tl && tr <= r
#define NE r < tl || tr < l
#define double long double
// #define int long long 
using namespace std;

const int N=2e5+7;
// const int mod=998244353;
// const int inf=2e12;

int n, d, m;
int a[N], b[N], h[N];
set<int>st[N];
vector<int>vec[N];
vector<int>add[N][2], del[N][2];
void init(int N, int D, int H[]){
    n=N;
    d=D;
    for(int i=0; i < n; i++)h[i]=H[i];
}
void curseChanges(int U, int A[], int B[]){
    m=U;
    for(int i=0; i < m; i++)a[i]=A[i];
    for(int i=0; i < m; i++)b[i]=B[i];
}
bool did_go;
void go(bool ok=0){
    if(did_go)return;
    did_go=1;
    for(int i=0; i < m; i++){
        if(st[a[i]].find(b[i]) != st[a[i]].end()){
            st[a[i]].erase(b[i]);
            st[b[i]].erase(a[i]);
            if(1 < h[a[i]] || 1 < h[b[i]])continue;
            del[a[i]][h[b[i]]].pb(i);
            del[b[i]][h[a[i]]].pb(i);
        }
        else{
            st[a[i]].insert(b[i]);
            st[b[i]].insert(a[i]);
            if(1 < h[a[i]] || 1 < h[b[i]])continue;
            add[a[i]][h[b[i]]].pb(i);
            add[b[i]][h[a[i]]].pb(i);
        }
    }
    if(ok)return;
    for(int i=0; i < n; i++){
        for(int j : st[i])vec[i].pb(h[j]);
        sort(all(vec[i]));
    }
}
int mn(vector<int> &v1,vector<int> &v2){
    int cur=0, mnn=1e9;
    if(v1.size()==0||v2.size()==0){
        return mnn;
    }
    for(int i : v1){
        while(v2[cur] < i && cur < v2.size()-1)cur++;
        mnn=min(mnn, abs(i-v2[cur]));
        if(cur)mnn=min(mnn, abs(i-v2[cur-1]));
    }
    return mnn;
}
bool les(int x, int V, bool f){
    int ad = lower_bound(all(add[x][f]), V)-add[x][f].begin();
    int de = lower_bound(all(del[x][f]), V)-del[x][f].begin();
    return (ad>de);
}
int question(int X, int Y, int V){
    int x=X, y=Y;
    if(V==m){
        go();
        return mn(vec[x], vec[y]);
    }
    if(m <= 1000){
        vector<int>vx, vy;
        set<int>st1, st2;
        for(int i=0; i < V; i++){
            if(a[i]==x){
                if(st1.find(b[i])==st1.end())st1.insert(b[i]);
                else st1.erase(b[i]);
            }
            if(a[i]==y){
                if(st2.find(b[i])==st2.end())st2.insert(b[i]);
                else st2.erase(b[i]);    
            }
            if(b[i]==x){
                if(st1.find(a[i])==st1.end())st1.insert(a[i]);
                else st1.erase(a[i]);    
            }
            if(b[i]==y){
                if(st2.find(a[i])==st2.end())st2.insert(a[i]);
                else st2.erase(a[i]);    
            }
        }
        for(int i : st1)vx.pb(h[i]);
        for(int i : st2)vy.pb(h[i]);
        sort(all(vx));
        sort(all(vy));
        return mn(vx, vy);
    }
    go(1);
    bool x0=0, x1=0, y0=0, y1=0;
    if(les(x, V, 0))x0=1;
    if(les(x, V, 1))x1=1;
    if(les(y, V, 0))y0=1;
    if(les(y, V, 1))y1=1;
    return 1;
    if(x1&&y1||x0&&y0)return 0;
    if(!x0&&!x1||!y0&&!y1)return 1e9;
    return 1;
}
// void AlemAmenov(){

// }
// signed main(){

    // ios_base::sync_with_stdio(0);
    // cin.tie(0);
    // int RealName=1;
    // cin >> RealName;

    // freopen("newbarn.in", "r", stdin);
    // freopen("newbarn.out", "w", stdout);
//     while(RealName--){
//         AlemAmenov();
//     }
    
// return 0;
// }

• Subtask 1: 0 / 0
• Subtask 2: 17 / 17
• Subtask 3: 14 / 14
• Subtask 4: 0 / 18
• Subtask 5: 0 / 21
• Subtask 6: 0 / 30