oj.uz

Submission #750513

# Submission time Handle Problem Language Result Execution time Memory
750513 2023-05-29T15:19:08 Z mars4 Examination (JOI19_examination) C++17
100 / 100
 1443 ms 17628 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp> 

using namespace std;
using namespace __gnu_pbds; 

#define ff              first
#define ss              second
#define ll              int64_t
#define ld              long double
#define nl              cout<<"\n"
#define i128            __int128_t
#define all(v)          v.begin(),v.end()
#define mset(a,v)       memset((a),(v),sizeof(a))
#define forn(i,a,b)     for(int64_t i=int64_t(a);i<int64_t(b);++i)
#define forb(i,a,b)     for(int64_t i=int64_t(a);i>=int64_t(b);--i)
#define fastio()        ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);

#define mod         1'000'000'007
#define mod2        998'244'353 
#define inf         1'000'000'000'000'007
#define pi          3.14159265358979323846

template<class key,class cmp=std::less<key>>
using ordered_set=tree<key,null_type,cmp,rb_tree_tag,tree_order_statistics_node_update>;

template<class L,class R> ostream& operator<<(ostream& out,pair<L,R> &p)        {return out<<"("<<p.ff<<", "<<p.ss<<")";}
template<class T> ostream& operator<<(ostream& out,vector<T> &v)                {out<<"[";for(auto it=v.begin();it!=v.end();++it){if(it!=v.begin())out<<", ";out<<*it;}return out<<"]";}
template<class T> ostream& operator<<(ostream& out,deque<T> &v)                 {out<<"[";for(auto it=v.begin();it!=v.end();++it){if(it!=v.begin())out<<", ";out<<*it;}return out<<"]";}
template<class T> ostream& operator<<(ostream& out,set<T> &s)                   {out<<"{";for(auto it=s.begin();it!=s.end();++it){if(it!=s.begin())out<<", ";out<<*it;}return out<<"}";}
template<class T> ostream& operator<<(ostream& out,ordered_set<T> &s)           {out<<"{";for(auto it=s.begin();it!=s.end();++it){if(it!=s.begin())out<<", ";out<<*it;}return out<<"}";}
template<class L,class R> ostream& operator<<(ostream& out,map<L,R> &m)         {out<<"{";for(auto it=m.begin();it!=m.end();++it){if(it!=m.begin())out<<", ";out<<*it;}return out<<"}";}

void dbg_out() {cerr<<"]\n";}
template<typename Head,typename... Tail> 
void dbg_out(Head H,Tail... T) {cerr<<H;if(sizeof...(Tail))cerr<<", ";dbg_out(T...);}
#ifdef LOCAL
#define dbg(...) cerr<<"["<<#__VA_ARGS__<<"] = [",dbg_out(__VA_ARGS__)
#else
#define dbg(...)
#endif

//---------------------------------mars4---------------------------------

class Fentree
{
	ll logN;

	ll sum(ll i)
	{
		ll res=0;
		for(;i;i-=i&(-i))
			res+=fentree[i];
		return res;
	}

	public:
	ll N;
	vector<ll> fentree;

	void init(ll n)
	{
		N=n;
		logN=65-__builtin_clzll(n);
		fentree=vector<ll>(N+1);
	}

	void build(vector<ll> &a)
	{
		for(ll i=1;i<=N;i++)
		{
			fentree[i]+=a[i-1];
			if(i+(i&-i)<=N)
				fentree[i+(i&-i)]+=fentree[i];
		}
	}

	void update(ll i,ll val)
	{
		for(i++;i<=N;i+=i&(-i))
			fentree[i]+=val;
	}

	ll sum(ll l,ll r)
	{
		if(l>r)
		{
			return 0;
		}
		return sum(r+1)-sum(l);
	}

	ll kth_element(ll k)
	{
		ll val=0;
		ll pos=0;
		for(ll i=logN;i>=0;i--)
		{
			ll r=1ll<<i;
			if(pos+r<=N and val+fentree[pos+r]<k)
			{
				val+=fentree[pos+r];
				pos+=r;
			}
		}
		return pos;
	}
};

const ll B=320;
vector<pair<ll,ll>> a;
vector<pair<ll,ll>> b;
vector<ll> c;
vector<ll> cnt;
Fentree f;

struct query 
{
	ll l,r,tot,id;
	bool operator < (const query &o) const 
	{
		if(l/B==o.l/B) 
		{
			if((l/B)%2==0) 
				return r<o.r;
			else 
				return r>o.r;
		} 
		else 
			return l<o.l;
	}
};

class Mo
{
	ll L=-1;
	ll R=-1;

	void updateL(ll i)
	{
		ll ind=a[i].ss;
		cnt[ind]++;
		if(cnt[ind]==2)
		{
			f.update(c[ind],1);
		}
	}

	void removeL(ll i)
	{
		ll ind=a[i].ss;
		if(cnt[ind]==2)
		{
			f.update(c[ind],-1);
		}
		cnt[ind]--;
	}

	void updateR(ll i)
	{
		ll ind=b[i].ss;
		cnt[ind]++;
		if(cnt[ind]==2)
		{
			f.update(c[ind],1);
		}
	}

	void removeR(ll i)
	{
		ll ind=b[i].ss;
		if(cnt[ind]==2)
		{
			f.update(c[ind],-1);
		}
		cnt[ind]--;
	}

	public:
	ll query(query q)
	{
		ll l=q.l;
		ll r=q.r;
		while(L<l)
		{
			L++;
			updateL(L);
		}
		while(R<r)
		{
			R++;
			updateR(R);
		}
		while(L>l)
		{
			removeL(L);
			L--;
		}
		while(R>r)
		{
			removeR(R);
			R--;
		}
		return f.sum(q.tot,f.N-1);
	}
};

int main()
{
	fastio();
	ll z,n,m,t,k,i,j,l,d,h,r;
	cin>>n>>m;
	a=vector<pair<ll,ll>>(n);
	b=vector<pair<ll,ll>>(n);
	c=vector<ll>(n);
	cnt=vector<ll>(n);
	f.init(n);
	vector<ll> va;
	vector<ll> vb;
	vector<ll> vc;
	forn(i,0,n)
	{
		cin>>a[i].ff>>b[i].ff;
		c[i]=a[i].ff+b[i].ff;
		a[i].ss=i;
		b[i].ss=i;
		va.push_back(a[i].ff);
		vb.push_back(b[i].ff);
		vc.push_back(c[i]);
	}
	sort(all(va),greater<ll>());
	sort(all(vb),greater<ll>());
	sort(all(vc));
	forn(i,0,n)
	{
		a[i].ff=lower_bound(all(va),a[i].ff,greater<ll>())-va.begin();
		b[i].ff=lower_bound(all(vb),b[i].ff,greater<ll>())-vb.begin();
		c[i]=lower_bound(all(vc),c[i])-vc.begin();
	}
	sort(all(a));
	sort(all(b));
	vector<query> q(m);
	vector<ll> ans(m);
	forn(i,0,m)
	{
		auto &[l,r,tot,id]=q[i];
		cin>>l>>r>>tot;
		l=upper_bound(all(va),l,greater<ll>())-va.begin()-1;
		r=upper_bound(all(vb),r,greater<ll>())-vb.begin()-1;
		tot=lower_bound(all(vc),tot)-vc.begin();
		id=i;
	}
	sort(all(q));
	Mo mo;
	for(auto qu:q)
	{
		ans[qu.id]=mo.query(qu);
	}
	for(ll i:ans)
	{
		cout<<i<<"\n";
	}
	cerr<<"\nTime elapsed: "<<1000*clock()/CLOCKS_PER_SEC<<"ms\n";
	return 0;
}

Compilation message

examination.cpp: In function 'int main()':
examination.cpp:212:5: warning: unused variable 'z' [-Wunused-variable]
  212 |  ll z,n,m,t,k,i,j,l,d,h,r;
      |     ^
examination.cpp:212:11: warning: unused variable 't' [-Wunused-variable]
  212 |  ll z,n,m,t,k,i,j,l,d,h,r;
      |           ^
examination.cpp:212:13: warning: unused variable 'k' [-Wunused-variable]
  212 |  ll z,n,m,t,k,i,j,l,d,h,r;
      |             ^
examination.cpp:212:15: warning: unused variable 'i' [-Wunused-variable]
  212 |  ll z,n,m,t,k,i,j,l,d,h,r;
      |               ^
examination.cpp:212:17: warning: unused variable 'j' [-Wunused-variable]
  212 |  ll z,n,m,t,k,i,j,l,d,h,r;
      |                 ^
examination.cpp:212:19: warning: unused variable 'l' [-Wunused-variable]
  212 |  ll z,n,m,t,k,i,j,l,d,h,r;
      |                   ^
examination.cpp:212:21: warning: unused variable 'd' [-Wunused-variable]
  212 |  ll z,n,m,t,k,i,j,l,d,h,r;
      |                     ^
examination.cpp:212:23: warning: unused variable 'h' [-Wunused-variable]
  212 |  ll z,n,m,t,k,i,j,l,d,h,r;
      |                       ^
examination.cpp:212:25: warning: unused variable 'r' [-Wunused-variable]
  212 |  ll z,n,m,t,k,i,j,l,d,h,r;
      |                         ^

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 14 ms 608 KB Output is correct
8 Correct 9 ms 724 KB Output is correct
9 Correct 10 ms 724 KB Output is correct
10 Correct 9 ms 632 KB Output is correct
11 Correct 6 ms 596 KB Output is correct
12 Correct 7 ms 724 KB Output is correct
13 Correct 14 ms 832 KB Output is correct
14 Correct 9 ms 744 KB Output is correct
15 Correct 10 ms 852 KB Output is correct
16 Correct 4 ms 712 KB Output is correct
17 Correct 7 ms 752 KB Output is correct
18 Correct 4 ms 716 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1304 ms 12728 KB Output is correct
2 Correct 1443 ms 12732 KB Output is correct
3 Correct 1442 ms 12728 KB Output is correct
4 Correct 998 ms 12732 KB Output is correct
5 Correct 212 ms 12728 KB Output is correct
6 Correct 159 ms 12732 KB Output is correct
7 Correct 540 ms 15140 KB Output is correct
8 Correct 656 ms 15136 KB Output is correct
9 Correct 585 ms 15052 KB Output is correct
10 Correct 206 ms 14292 KB Output is correct
11 Correct 1146 ms 14340 KB Output is correct
12 Correct 95 ms 13404 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1304 ms 12728 KB Output is correct
2 Correct 1443 ms 12732 KB Output is correct
3 Correct 1442 ms 12728 KB Output is correct
4 Correct 998 ms 12732 KB Output is correct
5 Correct 212 ms 12728 KB Output is correct
6 Correct 159 ms 12732 KB Output is correct
7 Correct 540 ms 15140 KB Output is correct
8 Correct 656 ms 15136 KB Output is correct
9 Correct 585 ms 15052 KB Output is correct
10 Correct 206 ms 14292 KB Output is correct
11 Correct 1146 ms 14340 KB Output is correct
12 Correct 95 ms 13404 KB Output is correct
13 Correct 1356 ms 15664 KB Output is correct
14 Correct 1316 ms 15704 KB Output is correct
15 Correct 1273 ms 15232 KB Output is correct
16 Correct 947 ms 14876 KB Output is correct
17 Correct 215 ms 14820 KB Output is correct
18 Correct 129 ms 13796 KB Output is correct
19 Correct 1433 ms 15660 KB Output is correct
20 Correct 1383 ms 15640 KB Output is correct
21 Correct 811 ms 15648 KB Output is correct
22 Correct 144 ms 14432 KB Output is correct
23 Correct 840 ms 14336 KB Output is correct
24 Correct 67 ms 13404 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 14 ms 608 KB Output is correct
8 Correct 9 ms 724 KB Output is correct
9 Correct 10 ms 724 KB Output is correct
10 Correct 9 ms 632 KB Output is correct
11 Correct 6 ms 596 KB Output is correct
12 Correct 7 ms 724 KB Output is correct
13 Correct 14 ms 832 KB Output is correct
14 Correct 9 ms 744 KB Output is correct
15 Correct 10 ms 852 KB Output is correct
16 Correct 4 ms 712 KB Output is correct
17 Correct 7 ms 752 KB Output is correct
18 Correct 4 ms 716 KB Output is correct
19 Correct 1304 ms 12728 KB Output is correct
20 Correct 1443 ms 12732 KB Output is correct
21 Correct 1442 ms 12728 KB Output is correct
22 Correct 998 ms 12732 KB Output is correct
23 Correct 212 ms 12728 KB Output is correct
24 Correct 159 ms 12732 KB Output is correct
25 Correct 540 ms 15140 KB Output is correct
26 Correct 656 ms 15136 KB Output is correct
27 Correct 585 ms 15052 KB Output is correct
28 Correct 206 ms 14292 KB Output is correct
29 Correct 1146 ms 14340 KB Output is correct
30 Correct 95 ms 13404 KB Output is correct
31 Correct 1356 ms 15664 KB Output is correct
32 Correct 1316 ms 15704 KB Output is correct
33 Correct 1273 ms 15232 KB Output is correct
34 Correct 947 ms 14876 KB Output is correct
35 Correct 215 ms 14820 KB Output is correct
36 Correct 129 ms 13796 KB Output is correct
37 Correct 1433 ms 15660 KB Output is correct
38 Correct 1383 ms 15640 KB Output is correct
39 Correct 811 ms 15648 KB Output is correct
40 Correct 144 ms 14432 KB Output is correct
41 Correct 840 ms 14336 KB Output is correct
42 Correct 67 ms 13404 KB Output is correct
43 Correct 1308 ms 17628 KB Output is correct
44 Correct 1273 ms 17580 KB Output is correct
45 Correct 1268 ms 17588 KB Output is correct
46 Correct 929 ms 16052 KB Output is correct
47 Correct 227 ms 16048 KB Output is correct
48 Correct 155 ms 13568 KB Output is correct
49 Correct 564 ms 17480 KB Output is correct
50 Correct 663 ms 17528 KB Output is correct
51 Correct 566 ms 17384 KB Output is correct
52 Correct 167 ms 15884 KB Output is correct
53 Correct 865 ms 15128 KB Output is correct