Submission #335137

#	Time	Username	Problem	Language	Result	Execution time	Memory
335137		VodkaInTheJar	Fortune Telling 2 (JOI14_fortune_telling2)	C++14	4 / 100	3049 ms	804 KiB

fortune_telling2

#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#define endl '\n'

using namespace std;

const int maxn = 2e5 + 3; 

int n, k; 
int a[maxn], b[maxn], t[maxn];
void read()
{
	cin >> n >> k;
	for (int i = 1; i <= n; i++)
	cin >> a[i] >> b[i];
	
	for (int i = 1; i <= k; i++)
	cin >> t[i];
}

void solve()
{
	long long ans = 0;
	for (int i = 1; i <= n; i++)
	{
		bool is = false;
		for (int j = 1; j <= k; j++)
		{
			int border = (is ? b[i] : a[i]);
			if (t[j] >= border)
			is ^= 1; 
		}
		
		if (!is)
		ans += a[i];
		
		else
		ans += b[i];
	}
	
	cout << ans << endl; 
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);

	read();
	solve();
}

• Subtask 1: 4 / 4
• Subtask 2: 0 / 31
• Subtask 3: 0 / 65