제출 #142955

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
142955		vardan__02	Simple game (IZhO17_game)	C++14	22 / 100	451 ms	24952 KiB

game

#include <iostream>
#include <fstream>
#include <algorithm>
#include <cstring>
#include <string>
#include <vector>
#include <cstdio>
#include <queue>
#include <deque>
#include <stack>
#include <cmath>
#include <list>
#include <set>
#include <map>
using namespace std;
typedef long long ll;
#define MP make_pair
#define PB push_back
ll n,m,i,j,k,p,ans[1000005],q,a[100005],plyus[1000005],h,u,v,t;
struct anun
{
    ll tiv,kod;
};
bool operator<(const anun &a, const anun &b)
{
    return a.tiv<b.tiv;
}
anun b[100005];
set<ll> s;
void ban();
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>m;
    if(n*m<=1000000)
    {
        ban();
        return 0;
    }
    for(i=1;i<=n;i++)
    {
        cin>>a[i];
        s.insert(a[i]);
        b[i].tiv=a[i];
        b[i].kod=i;
    }
    sort(b+1,b+1+n);
    if(b[n].kod!=n && a[b[n].kod+1]<b[n].tiv)
        plyus[b[n].tiv]++;
    if(b[n].kod!=1 && a[b[n].kod-1]<b[n].tiv)
        plyus[b[n].tiv]++;
    for(i=n-1;i>=1;i--)
    {
        if(b[i].tiv!=b[i+1].tiv)
        {
            ans[b[i].tiv]=ans[b[i+1].tiv]+plyus[b[i+1].tiv];
            if(b[i+1].kod!=n && a[b[i+1].kod+1]>b[i+1].tiv)
            ans[b[i].tiv]--;
            if(b[i+1].kod!=1 && a[b[i+1].kod-1]>b[i+1].tiv)
            ans[b[i].tiv]--;
        }
        if(b[i].kod!=n && a[b[i].kod+1]<b[i].tiv)
            plyus[b[i].tiv]++;
        if(b[i].kod!=1 && a[b[i].kod-1]<b[i].tiv)
            plyus[b[i].tiv]++;
    }
    /*for(i=1;i<=n;i++)
        cout<<ans[b[i].tiv]<<" ";
    cout<<endl;*/
    for(i=1;i<=m;i++)
    {
        ll w;
        cin>>w;
        if(w==2)
        {
            cin>>h;
            if(h<b[1].tiv || h>b[n].tiv)
                cout<<0<<endl;
            else
            {
                set<ll>::iterator it=s.lower_bound(h);
                it--;
                cout<<ans[*it]<<endl;
            }
        }
    }
    return 0;
}
void ban()
{
    for(i=1;i<=n;i++)
        cin>>a[i];
    for(i=1;i<=m;i++)
    {
        cin>>t;
        if(t==1)
        {
            cin>>u>>v;
            a[u]=v;
        }
        else
        {
            cin>>h;
            ll anss=0;
            for(j=2;j<=n;j++)
            {
                u=max(a[j-1],a[j]);
                v=min(a[j-1],a[j]);
                if(h>=v && h<=u)
                    anss++;
            }
            cout<<anss<<endl;
        }
    }
}
/*
10 5
20 2 8 4 10 12 14 6 16 18
*/

• Subtask 1: 22 / 22
• Subtask 2: 0 / 27
• Subtask 3: 0 / 51