Submission #18,236

2025-10-15 19:00:04

pypy3

Accepted 75/75

164ms

29668 KiB

N,M = map(int,input().split())
T = [0] * (N+1)
for _ in range(M):
    A,B = map(int,input().split())
    T[A] += 1
    T[B] -= 1
osszeg = 0
db = 0
for i in range(1,N):
    osszeg += T[i]
    if osszeg == 0:
        db += 1
print(db)

	Sum	Test	Verdict		Time	Memory
base	75/75
		1	Accepted	0/0	43ms	19476 KiB
		2	Accepted	0/0	148ms	29660 KiB
		3	Accepted	3/3	39ms	19436 KiB
		4	Accepted	3/3	43ms	19424 KiB
		5	Accepted	3/3	45ms	19432 KiB
		6	Accepted	3/3	43ms	19448 KiB
		7	Accepted	3/3	39ms	19408 KiB
		8	Accepted	4/4	39ms	19300 KiB
		9	Accepted	4/4	43ms	19440 KiB
		10	Accepted	4/4	37ms	19432 KiB
		11	Accepted	4/4	54ms	21988 KiB
		12	Accepted	4/4	54ms	22148 KiB
		13	Accepted	4/4	76ms	22436 KiB
		14	Accepted	4/4	79ms	23148 KiB
		15	Accepted	4/4	86ms	23272 KiB
		16	Accepted	4/4	104ms	25832 KiB
		17	Accepted	4/4	103ms	25836 KiB
		18	Accepted	4/4	115ms	27196 KiB
		19	Accepted	4/4	82ms	24976 KiB
		20	Accepted	4/4	83ms	25832 KiB
		21	Accepted	4/4	158ms	29644 KiB
		22	Accepted	4/4	164ms	29668 KiB