Submission #1034082

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034082		Halym2007	Strange Device (APIO19_strange_device)	C++17	10 / 100	302 ms	53260 KiB

strange_device

#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define sz size()
#define pii pair <ll, ll>
const int N = 1e6 + 5;
#define ll long long
#define pb push_back
vector <pii> v;
ll n, a, b;
int main () {
//	freopen ("input.txt", "r", stdin);
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin >> n >> a >> b;
	__int128 m = a / __gcd (a, b + 1) * b;
	for (int i = 1; i <= n; ++i) {
		ll l, r;
		cin >> l >> r;
		if (r - l + 1 >= m) {
			v.pb ({0, m - 1});
		}
		else if (l % m > r % m) {
			v.pb ({l % m, m - 1});
			v.pb ({0, r % m});
		}
		else {
			v.pb ({l % m, r % m});
		}
	}
	sort (v.begin(), v.end());
//	for (auto i : v) {
//		cout << i.ff << " " << i.ss << "\n";
//	}
//	return 0;
	ll l = 0, r = 0, jogap = 0;
	for (int i = 0; i < (int)v.sz; ++i) {
		if (v[i].ff <= r) r = max (r, v[i].ss);
		
		else {
			jogap += r - l + 1;
			l = v[i].ff; 
			r = v[i].ss;
		}
	}
	jogap += r - l + 1;
	cout << jogap;
}

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