Submission #979811

#	Time	Username	Problem	Language	Result	Execution time	Memory
979811		kayn	Strange Device (APIO19_strange_device)	C++14	0 / 100	5078 ms	524288 KiB

strange_device

#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define fi first
#define se second
#define pii pair<int, int>
#define pll pair<ll, ll>
#define run ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll n, a, b, l, r, ans;

int main(){
	cin >> n >> a >> b;
	ll kpk=a*b/__gcd(a, b);
	set<pii> s;
	for(int i=1; i<=n; i++){
		cin >> l >> r;
		for(int t=l; t<=r; t++){
			s.insert({(t+t/b)%a, t%b});
		}
	}
	cout << s.size() << endl;
	return 0;
}

Compilation message (stderr)

strange_device.cpp: In function 'int main()':
strange_device.cpp:14:5: warning: unused variable 'kpk' [-Wunused-variable]
   14 |  ll kpk=a*b/__gcd(a, b);
      |     ^~~

• 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