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Submission #579494

# Submission time Handle Problem Language Result Execution time Memory
579494 2022-06-19T09:17:46 Z gun_gan Strange Device (APIO19_strange_device) C++17
0 / 100
 1 ms 260 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main()
{
	cin.tie(0) -> ios_base::sync_with_stdio(0);

	ll n, a, b;
	cin >> n >> a >> b;

	ll g;

	if(a > 1e18 / b)
	{
		g = 1e18 + 2;
	}
	else
	{
		g = a * b / gcd(a, b + 1);
	}

	map<ll, vector<ll>> M;
	for(int i = 0; i < n; i++)
	{
		ll l, r;
		cin >> l >> r;
		l %= g, r %= g;
		if(r < l)
		{
			M[0].push_back(r);
			M[l].push_back(g - 1);
		}
		else
		{
			M[l].push_back(r);
		}
	}

	multiset<ll> S;
	vector<pair<ll,ll>> intervals;

	ll begin = 2e18, last = 0;
	for(auto &[st, v] : M)
	{	
		
		while(!S.empty() && *S.begin() < st)
		{
			S.erase(S.begin());
		}

		if(S.empty() && begin != 2e18)
		{
			intervals.push_back({begin, last});
			begin = 2e18;
			last = 0;
		}

		begin = min(begin, st);

		for(auto i : v)
		{
			S.insert(i);
			last = max(last, i);
		}

	}

	if(!S.empty() && begin != 2e18)
	{
		cout << last << '\n';
		while(!S.empty())
		{
			last = max(last, *S.begin());
			S.erase(S.begin());
		}

		intervals.push_back({begin, last});
	}

	long long ans = 0;
	for(auto [l, r] : intervals) 
	{
		ans += r - l + 1;
	}
	cout << ans;

}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 260 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 260 KB Output isn't correct
2 Halted 0 ms 0 KB -