Submission #937069

#	Time	Username	Problem	Language	Result	Execution time	Memory
937069		groshi	Worst Reporter 3 (JOI18_worst_reporter3)	C++17	100 / 100	435 ms	30248 KiB

worst_reporter3

#include<bits/stdc++.h>
#define int long long
using namespace std;
int t[600000];
int suma[600000];
int n;
int licz(int kiedy,int x)
{
    int pocz=0,kon=n,sre;
    while(pocz<=kon)
    {
        sre=(pocz+kon)/2;
        if(kiedy/suma[sre]*suma[sre]-sre>=x)
            pocz=sre+1;
        else kon=sre-1;
    }
    return kon+1;
}
int32_t main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int zap,tt,l,r;
    cin>>n>>zap;
    for(int i=1;i<=n;i++)
        cin>>t[i];
    suma[0]=1;
    for(int i=1;i<=n;i++)
    {
        suma[i]=max(t[i],suma[i-1]);
        suma[i]=suma[i-1]*((suma[i-1]+suma[i]-1)/suma[i-1]);
    }
    while(zap--)
    {
        cin>>tt>>l>>r;
        cout<<licz(tt,l)-licz(tt,r+1)<<"\n";
    }
    return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 12 / 12
• Subtask 3: 81 / 81