Submission #205855

#	Time	Username	Problem	Language	Result	Execution time	Memory
205855		cheetose	Worst Reporter 3 (JOI18_worst_reporter3)	C++11	100 / 100	526 ms	22828 KiB

worst_reporter3

#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a));
#define MEM_1(a) memset((a),-1,sizeof(a));
#define ALL(a) a.begin(),a.end()
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<ld> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const int MOD = 42043;
ll POW(ll a, ll b, ll MMM = MOD) { ll ret = 1; for (; b; b >>= 1, a = (a*a) % MMM)if (b & 1)ret = (ret*a) % MMM; return ret; }
ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
ll lcm(ll a, ll b) { if (a == 0 || b == 0)return a + b; return a*(b / gcd(a, b)); }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };
int ddx[] = { -1,-2,1,-2,2,-1,2,1 }, ddy[] = { -2,-1,-2,1,-1,2,1,2 };

map<ll,Pi> M;
ll d[500005];
int main() {
	int n,q;
	scanf("%d%d",&n,&q);
	d[0]=1;
	fup(i,1,n,1)
	{
		ll x;
		scanf("%lld",&x);
		ll t=x/d[i-1]*d[i-1];
		if(t<x)t+=d[i-1];
		d[i]=t;
	}
	int L=0;
	fup(R,1,n,1)
	{
		if(d[R]!=d[L])
		{
			M[d[L]]=mp(L,R-1);
			L=R;
		}
	}
	M[d[L]]=mp(L,n);
	while(q--)
	{
		ll t,l,r;
		scanf("%lld%lld%lld",&t,&l,&r);
		ll ans=0;
		for(auto it=M.begin();it!=M.end();it++)
		{
			ll D=it->X;
			Pi p=it->Y;
			ll L=D*(t/D)-p.Y,R=D*(t/D)-p.X;
			R=min(r,R),L=max(l,L);
			if(L<=R)ans+=R-L+1;
		}
		printf("%lld\n",ans);
	}
}

Compilation message (stderr)

worst_reporter3.cpp: In function 'int main()':
worst_reporter3.cpp:48:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&q);
  ~~~~~^~~~~~~~~~~~~~
worst_reporter3.cpp:53:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&x);
   ~~~~~^~~~~~~~~~~
worst_reporter3.cpp:71:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld%lld",&t,&l,&r);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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