제출 #565985

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
565985		groshi	Sterilizing Spray (JOI15_sterilizing)	C++17	80 / 100	5034 ms	4640 KiB

sterilizing

#include<iostream>

using namespace std;
int k;
long long drzewo[3000000];
int pot=1;
long long zap(int x,int l,int r,int a,int b)
{
    if(r<a || l>b)
        return 0;
    if(l>=a && r<=b)
        return drzewo[x];
    int mid=(l+r)/2;
    return zap(x*2,l,mid,a,b)+zap(x*2+1,mid+1,r,a,b);
}
void add(int x,int l,int r,int a,int b)
{
    if(r<a || l>a)
        return;
    if(l==r)
    {
        drzewo[x]=b;
        return;
    }
    int mid=(l+r)/2;
    add(x*2,l,mid,a,b);
    add(x*2+1,mid+1,r,a,b);
    drzewo[x]=drzewo[x*2]+drzewo[x*2+1];
}
void spray(int x,int l,int r,int a,int b)
{
    if(l>b || r<a)
        return;
    if(drzewo[x]==0)
        return;
    if(l==r)
    {
        drzewo[x]/=k;
        return;
    }
    int mid=(l+r)/2;
    spray(x*2,l,mid,a,b);
    spray(x*2+1,mid+1,r,a,b);
    drzewo[x]=drzewo[x*2]+drzewo[x*2+1];
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n,q,x;
    cin>>n>>q>>k;
    while(pot<=n)
        pot*=2;
    pot--;
    for(int i=1;i<=n;i++)
    {
        cin>>x;
        add(1,pot+1,pot*2+1,i+pot,x);
    }
    while(q--)
    {
        int x,a,b;
        cin>>x>>a>>b;
        if(x==1)
            add(1,pot+1,pot*2+1,a+pot,b);
        if(x==2)
            spray(1,pot+1,pot*2+1,a+pot,b+pot);
        if(x==3)
            cout<<zap(1,pot+1,pot*2+1,a+pot,b+pot)<<"\n";
    }
    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 75 / 75