544 B | 544 chars
import sys
from math import sqrt, pi, sin, factorial
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def solve():
n, x = mii()
l = mii()
ans = 1
crt = 1
for i in range(1, n):
if l[i] - l[i - 1] <= x:
crt += 1
else:
crt = 1
ans = max(ans, crt)
p(ans)
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()