Submission #1867820

---

Source Code Expand

#include <cstdio>
#include <vector>
#include <algorithm>
const int MOD = 1000000007;
int N, M, f[301][301][301];
std::vector < std::pair < int, int > > V[301];
inline void add(int &x, int y)
{
	x = x + y < MOD ? x + y : x + y - MOD;
}
int main()
{
	scanf("%d%d", &N, &M);
	while (M--)
	{
		int l, r, t;
		scanf("%d%d%d", &l, &r, &t);
		V[r].push_back({ l, t });
	}
	f[0][0][0] = 1;
	for (int i = 0; i < N; i++)
		for (int j = 0; j <= i; j++)
			for (int k = j; k <= i; k++)
			{
				bool check = true;
				for (auto &e : V[i])
					if (1 + (j >= e.first) + (k >= e.first) != e.second)
						check = false;
				if (check)
				{
					add(f[i + 1][j][k], f[i][j][k]);
					add(f[i + 1][j][i], f[i][j][k]);
					add(f[i + 1][k][i], f[i][j][k]);
				}
			}
	int O = 0;
	for (int i = 0; i <= N; i++)
		for (int j = 0; j <= N; j++)
		{
			bool check = true;
			for (auto &e : V[N])
				if (1 + (i >= e.first) + (j >= e.first) != e.second)
					check = false;
			if (check)
				add(O, f[N][i][j]);
		}
	printf("%d\n", O);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
                       ^
./Main.cpp:17:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &l, &r, &t);
                              ^

Judge Result