Submission #286810

#	Time	Username	Problem	Language	Result	Execution time	Memory
286810		YJU	Worst Reporter 3 (JOI18_worst_reporter3)	C++14	12 / 100	26 ms	4480 KiB

worst_reporter3

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
typedef long double ld;
const ll MOD=1e9+7;
const ll N=2e5+5;
const ld pi=3.14159265359;
const ll INF=(1LL<<62);
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(a) (ll)a.size()

ll T,L,R,n,q,l[N],d[N],t[N];

ll cal(ll tid,ll range){
	ll ql=-1,qr=n+1;
	while(qr-ql>1){
		ll mid=(ql+qr)/2;
		if(tid/t[mid]*l[mid]-mid>range){
			ql=mid;
		}else{
			qr=mid;
		}
	}
	return (n+1-qr);
}

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>n>>q;
	l[0]=t[0]=1;
	REP1(i,n)cin>>d[i];
	REP1(i,n){
		l[i]=((d[i]+l[i-1]-1)/l[i-1])*l[i-1];
		t[i]=t[i-1]*((d[i]+l[i-1]-1)/l[i-1]);
		if(t[i]>1e9){n=i;break;}
	}
	while(q--){
		cin>>T>>L>>R;
		//cout<<cal(T,R)<<" "<<cal(T,L-1)<<"\n";
		cout<<cal(T,R)-cal(T,L-1)<<"\n";
	}
	return 0;
}

• Subtask 1: 0 / 7
• Subtask 2: 12 / 12
• Subtask 3: 0 / 81