Submission #110307

#	Time	Username	Problem	Language	Result	Execution time	Memory
110307		ryansee	Worst Reporter 3 (JOI18_worst_reporter3)	C++14	0 / 100	21 ms	3456 KiB

worst_reporter3

#include "bits/stdc++.h"
using namespace std;
#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
#define LLINF ((long long) 1e18)//1234567890987654321
#define INF 1234567890ll
#define pb emplace_back
#define ins insert
#define f first
#define s second	
#define db 0
#define EPS (1e-7)    //0.0000001 the value
#define PI (acos(-1))
#define MAXN (300006)
#define MAXK 26
#define MAXX 15000006
#define ll long long int 
#define ld long double
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());    //can be used by calling rng() or shuffle(A, A+n, rng)
#define FOR(ii, ss, ee) for(ll ii = ss; ii < ee; ++ii)
#define space " "
#define cbr cerr << "hi\n"
#define mmst(x, v) memset((x), v, sizeof ((x)))
#define siz(x) ((ll)x.size())
#define ph emplace
#define btinpct(x) __builtin_popcountll(x)
#define p2(x) (1LL<<(x))
#define all(x) (x).begin(), (x).end()
#define lbd(x, y) lower_bound(all(x), y)
#define ubd(x, y) upper_bound(all(x), y)
typedef pair <ll, ll> pi;
typedef pair <ll, pi> spi;
typedef pair <pi, pi> dpi;
inline ll rand(ll x, ll y) { ++y; return (rng() % (y-x)) + x; } //inclusivesss
ll n, q, A[MAXN], mi[MAXN]; // mi - stands for mini place IOI-chan has to be, in order for him to move up
int main()
{
	FAST
	cin>>n>>q;
	FOR(i,1,n+1)cin>>A[i];
	mi[0]=1;
	FOR(i,1,n+1) { // now we calculate mi[i]; - based on mi[i-1];
		mi[i] = (((A[i] - 1)/mi[i-1]+1)*mi[i-1]); cerr<<mi[i]<<'\n';
	}
	FOR(i,0,q) {
		ll t,l,r;cin>>t>>l>>r;
		ll st = 0, en = n+1, mid = 0;
		while(en-st>1) {
			mid=(st+en)>>1ll;
			if(t/mi[mid]*mi[mid]-mid >= l) st=mid;
			else en=mid;
		}
		ll ans1 = st;
		st=0,en=n+1,mid=0;
		while(en-st>1) {
			mid=(st+en)>>1ll;
			if(t/mi[mid]*mi[mid]-mid>r)st=mid;
			else en=mid;
		}
		ll ans2=st;
				// cerr << ans1 << " " << ans2 << ' ' << t << ' ' << mi[1] << ' ';
		cout<<ans1-ans2+(l<=t&&t<=r)<<'\n';
	}
}

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