Submission #978186

#	Time	Username	Problem	Language	Result	Execution time	Memory
978186		willychan	Strange Device (APIO19_strange_device)	C++17	0 / 100	5081 ms	524288 KiB

strange_device

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
//#include<bits/extc++.h>
//__gnu_pbds
// observation 
// every thing is the same, actually
// it will probably be A/gcd(A,b+1)*B stuff,so basically lcm(A,B) 

int main(){
	int n;
	ll A,B;
	cin>>n>>A>>B;
	set<pair<ll,ll> > s;
	for(int i=0;i<n;i++){
		ll l,r;cin>>l>>r;
		for(int j=l;j<=r;j++){
			s.insert({(j+j/B)%A,j%B});
		}
	}
	cout<<s.size()<<'\n';



	return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 30