oj.uz

Submission #279662

# Submission time Handle Problem Language Result Execution time Memory
279662 2020-08-22T09:29:20 Z dorijanlendvaj Pairs (IOI07_pairs) C++14
60 / 100
 100 ms 8184 KB 
//DUEL
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define x first
#define y second
#define pii pair<int,int>
#define pb push_back
#define eb emplace_back
#pragma GCC optimize("unroll-loops")
#define shandom_ruffle(a, b) shuffle(a, b, rng)
#define vi vector<int>
#define vl vector<ll>
#define popcnt __builtin_popcount
#define popcntll __builtin_popcountll
#define all(a) begin(a),end(a)

using namespace std;
using namespace __gnu_pbds;

using ll=long long;
using ull=unsigned long long;
using ld=long double;
int MOD=1000000007;
int MOD2=998244353;
vector<int> bases;
const ll LLINF=1ll<<60;
const char en='\n';

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
void yes() {cout<<"YES"<<en; exit(0);}
void no() {cout<<"NO"<<en; exit(0);}
inline int rund() {int x576363482791fuweh=rng();return abs(x576363482791fuweh)%RAND_MAX;}
template<class T>
void prVec(vector<T> w,bool fl=false)
{
	cout<<w.size()<<en;
	for (int i=0;i<int(w.size())-1;++i) cout<<w[i]<<' ';
	if (w.size()) cout<<w[w.size()-1]<<en;
	if (fl) cout<<flush;
}

void M998()
{
	swap(MOD,MOD2);
}

ll raand()
{
	ll a=rund();
	a*=RAND_MAX;
	a+=rund();
    return a;
}

#define rand raand

ll raaand()
{
	return raand()*(MOD-7)+raand();
}

void compress(vi&v)
{
	set<int> s;
	for (auto a: v) s.insert(a);
	vi o(all(s));
	for (auto&a: v) a=lower_bound(all(o),a)-o.begin();
}

void compress(vl&v)
{
	set<ll> s;
	for (auto a: v) s.insert(a);
	vl o(all(s));
	for (auto&a: v) a=lower_bound(all(o),a)-o.begin();
}

string to_upper(string a)
{
	for (int i=0;i<(int)a.size();++i) if (a[i]>='a' && a[i]<='z') a[i]-='a'-'A';
	return a;
}

string to_lower(string a)
{
	for (int i=0;i<(int)a.size();++i) if (a[i]>='A' && a[i]<='Z') a[i]+='a'-'A';
	return a;
}

ll sti(string a,int base=10)
{
	ll k=0;
	for (int i=0;i<(int)a.size();++i)
	{
		k*=base;
		k+=a[i]-'0';
	}
	return k;
}

template<class T>
void eras(vector<T>& a,T b)
{
	a.erase(find(a.begin(),a.end(),b));
}

string its(ll k,int base=10)
{
	if (k==0) return "0";
	string a;
	while (k)
	{
		a.push_back((k%base)+'0');
		k/=base;
	}
	reverse(a.begin(),a.end());
	return a;
}

ll min(ll a,int b)
{
	if (a<b) return a;
	return b;
}

ll min(int a,ll b)
{
	if (a<b) return a;
	return b;
}

ll max(ll a,int b)
{
	if (a>b) return a;
	return b;
}

ll max(int a,ll b)
{
	if (a>b) return a;
	return b;
}

ll gcd(ll a,ll b)
{
	if (b==0) return a;
	return gcd(b,a%b);
}

ll lcm(ll a,ll b)
{
	return a/gcd(a,b)*b;
}

template<class T,class K>
pair<T,K> mp(T a,K b)
{
	return make_pair(a,b);
}

inline int mult(ll a,ll b)
{
	return (a*b)%MOD;
}

inline int pot(int n,int k)
{
	if (k==0) return 1;
	ll a=pot(n,k/2);
	a=mult(a,a);
	if (k%2) return mult(a,n);
	else return a;
}

int divide(int a,int b)
{
	return mult(a,pot(b,MOD-2));
}

inline int sub(int a,int b)
{
	if (a-b>=0) return a-b;
	return a-b+MOD;
}

inline int add(int a,int b)
{
	if (a+b>=MOD) return a+b-MOD;
	return a+b;
}

bool prime(ll a)
{
	if (a==1) return 0;
	for (int i=2;i<=round(sqrt(a));++i)
	{
		if (a%i==0) return 0;
	}
	return 1;
}

const int N=300010,MMM=1<<18;
int b,n,d,ooooooooof,sss[MMM*2+10];


void uuu(int i,int x)
{
	for (i+=MMM;i;i/=2) sss[i]+=x;
}

int ggg(int l,int r,int lo=0,int hi=MMM,int i=1)
{
	if (lo>=l && hi<=r) return sss[i];
	if (lo>=r || hi<=l) return 0;
	int mid=(lo+hi)/2;
	return ggg(l,r,lo,mid,i*2)+ggg(l,r,mid,hi,i*2+1);
}

void solve2()
{
	const int MM=75000;
	vector<vi> im(MM*2+10);
	for (int i=0;i<n;++i)
	{
		int x,y;
		cin>>x>>y;
		int x1=x-y+MM,y1=x+y;
		im[x1].pb(y1);
	}
	ll an=0;
	for (int i=0;i<=MM*2;++i)
	{
		if (i>=d+1) for (auto a: im[i-d-1]) uuu(a,-1);
		for (auto a: im[i])
		{
			an+=ggg(a-d,a+d+1);
			uuu(a,1);
		}
	}
	cout<<an<<en;
}

void solve1()
{
	vi v(n);
	for (auto&a: v) cin>>a;
	sort(all(v));
	int l=0;
	ll an=0;
	for (int i=1;i<n;++i)
	{
		while (v[i]-v[l]>d) ++l;
		an+=i-l;
	}
	cout<<an<<en;
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	for (int i=0;i<10;++i) bases.push_back(rand()%(MOD-13893829*2)+13893829);
	cin>>b>>n>>d>>ooooooooof;
	if (b==1) solve1();
	if (b==2) solve2();
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 1024 KB Output is correct
2 Correct 14 ms 1024 KB Output is correct

Subtask #4
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 1024 KB Output is correct
2 Correct 19 ms 1024 KB Output is correct

Subtask #5
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 1024 KB Output is correct
2 Correct 20 ms 1024 KB Output is correct
3 Correct 18 ms 1024 KB Output is correct

Subtask #6
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5120 KB Output is correct
2 Correct 5 ms 5024 KB Output is correct

Subtask #7
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 5120 KB Output is correct
2 Correct 41 ms 5120 KB Output is correct

Subtask #8
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 5580 KB Output is correct
2 Correct 56 ms 5368 KB Output is correct
3 Correct 53 ms 5376 KB Output is correct
4 Correct 52 ms 5376 KB Output is correct

Subtask #9
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 100 ms 8184 KB Output is correct
2 Correct 95 ms 8184 KB Output is correct
3 Correct 60 ms 6904 KB Output is correct
4 Correct 59 ms 6804 KB Output is correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 288 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 512 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -