1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
#include <iostream>
#include <map>
#include <unordered_map>
#include <vector>
#include <string>

using namespace std;

int main()
{
	unsigned long long N, M; 
	cin >> N;
	cin >> M;

	static short YELLOW = 1<<1;
	static short BLUE = 1<<2;
	static short RED = 1<<3;
	static short GREEN = YELLOW | BLUE;

	vector<short> puszki(N,0);
	unsigned long long greens = 0;

	for (unsigned long long i = 0; i < M; ++i) 
	{
		unsigned long long l, r;
		short k;

		cin >> l; // left index
		cin >> r; // right index
		cin >> k; // color

		for (int j = l - 1; j <= r - 1; ++j)
		{
			if (puszki[j] == GREEN)
			{
				puszki[j] |= 1 << k;
				if (puszki[j] != GREEN)
				{
					--greens;
				}
			}
			else
			{
				puszki[j] |= 1 << k;
				if (puszki[j] == GREEN)
				{
					++greens;
				}
			}
		}
	}
	cout << greens;

	return 0;
}