Submission #808741

#	Time	Username	Problem	Language	Result	Execution time	Memory
808741		Tunglam07	Vepar (COCI21_vepar)	C++17	30 / 70	95 ms	9480 KiB

Main

#include<bits/stdc++.h>
using namespace std;
 
long long t, a, b, c, d, s, s1;
bool chk[10000001];
vector<long long> prim;
 
long long sol(long long v,long long k)
{
	long long ans = 0;
	while (v) 
	{
		ans += v/k;
		v /= k;
	}
	return ans;
}

void findprime()
{
	for(int i = 2; i <= 5000000; i++)
	{
		if(!chk[i])
		{
			prim.push_back(i);
			for(int j = i * 2; j <= 5000000; j += i)	
			{
				chk[j] = 1;
			}
		}
	}
} 

int main()
{
	ios::sync_with_stdio (0);
	cin.tie (0); 
	cout.tie (0);
	findprime();
	cin >> t;
	while(t--)
	{
		cin >> a >> b >> c >> d;
		bool ck = 0;
		for (int v : prim)
		{
			if (sol(b, v) - sol(a - 1, v) > sol(d, v) - sol(c - 1, v))
			{
				ck = 1;
				break;
			}
		}
		if(!ck)	
		{
			cout << "DA" << endl;
		}
		else	
		{
			cout << "NE" << endl;
		}
	}
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10