Submission #622544

#	Time	Username	Problem	Language	Result	Execution time	Memory
622544		bigo	Strange Device (APIO19_strange_device)	C++14	10 / 100	5075 ms	524288 KiB

strange_device

#define _CRT_SECURE_NO_WARNINGS
#include <string>
#include <iostream>
#include <vector>
#include <map>
#include <set>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pii;
const ll mod = 1e9 + 7;
const ll mod1 = 998244353;
#define all(a) a.begin(),a.end()

int main() {
	ios::sync_with_stdio(false);
	ll n, a, b;
	cin >> n >> a >> b;
	vector<pii>vec(n);
	for (ll i = 0; i < n; i++)
		cin >> vec[i].first >> vec[i].second;
	set<pii>mp;
	ll ans = 0;
	for (ll i = 0; i < n; i++) {
		for (ll j = vec[i].first; j <= vec[i].second; j++) {
			int x = (j + j / b) % a;
			int y = j % b;
			if (mp.find({ x,y })==mp.end()) {
				ans++;
				mp.insert({ x,y });
			}
		}
	}
	cout << ans << endl;
}

• Subtask 1: 10 / 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