Submission #677168

#	Time	Username	Problem	Language	Result	Execution time	Memory
677168		faribourz	Strange Device (APIO19_strange_device)	C++14	0 / 100	2280 ms	524288 KiB

strange_device

// Only GOD
// believe in yourself
// nemidam del be in darde donya!
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;

#define F first
#define S second
#define pb push_back
#define all(x) x.begin(), x.end()
#define bit(x, y) ((x >> y)&1)
#define sz(x) (int)x.size()
#define kill(x) return cout << x << '\n', void()
#define KILL(x) return cout << x << '\n', 0
#define int ll
const int N = 1e5+10;
const int INF = INT_MAX;
int32_t main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int n, A, B;
	cin >> n >> A >> B;
	int C = A / __gcd(A, B+1);
	if(C < B){
		int sum = 0;
		for(int i = 0; i < n; i++){
			int l, r;
			cin >> l >> r;
			sum += r - l + 1;
		}
		KILL(sum);
	}
	int mul = C*B;
	set<int> s;
	for(int i = 0; i < n; i++){
		int l, r;
		cin >> l >> r;
		for(int j = l; j <= r; j++){
			s.insert(j % mul);
		}
	}
	cout << sz(s) << '\n';
}

• 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