Submission #836925

#	Time	Username	Problem	Language	Result	Execution time	Memory
836925		groshi	Money (IZhO17_money)	C++17	0 / 100	1 ms	340 KiB

money

#include<bits/stdc++.h>
#define int long long
using namespace std;
int pot=1;
int drzewo[3000000];
int lazy[3000000];
int t[3000000];
void propaguj(int x,int l,int r)
{
    drzewo[x*2]+=lazy[x]*(r-l+1)/2;
    drzewo[x*2+1]+=lazy[x]*(r-l+1)/2;
    lazy[x*2]+=lazy[x];
    lazy[x*2+1]+=lazy[x];
    lazy[x]=0;
}
int suma(int x,int l,int r,int a,int b)
{
    if(b<a)
        return 0;
    if(r<a || l>b)
        return 0;
    propaguj(x,l,r);
    if(a<=l && r<=b)
        return drzewo[x];
    int mid=(l+r)/2;
    int L=suma(x*2,l,mid,a,b);
    int R=suma(x*2+1,mid+1,r,a,b);
    drzewo[x]=drzewo[x*2]+drzewo[x*2+1];
    return L+R;
}
void dodaj(int x,int l,int r,int a,int b)
{
    if(r<a || l>b)
        return;
    propaguj(x,l,r);
    if(a<=l && r<=b)
    {
        drzewo[x]+=(r-l+1);
        lazy[x]++;
        return;
    }
    int mid=(l+r)/2;
    dodaj(x*2,l,mid,a,b);
    dodaj(x*2+1,mid+1,r,a,b);
    drzewo[x]=drzewo[x*2]+drzewo[x*2+1];
}
int32_t main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int n;
    cin>>n;
    while(pot<=n)
        pot*=2;
    pot--;
    for(int i=1;i<=n;i++)
        cin>>t[i];
    int wynik=0;
    for(int i=1;i<=n;i++)
    {
        int j=i;
        while(j+1<=n && t[j+1]>t[j] && suma(1,pot+1,pot*2+1,t[i]+pot+1,pot+t[j+1]-1)==0)
            j++;
        for(int e=i;e<=j;e++)
            dodaj(1,pot+1,pot*2+1,t[e]+pot,t[e]+pot);
        i=j;
        wynik++;
    }
    cout<<wynik;
    return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55