📅  最后修改于: 2022-03-11 14:45:52.321000             🧑  作者: Mango
n = int(input())
d = int(input())
a = []
for _ in range(n):
a.append(int(input()))
k = a[0] // d + 1
for i in range(1, len(a)):
if i + 1 <= k:
t = a[i] // d + i + 1
if k < t:
k = t
else:
break
if k > len(a):
k = len(a)
print(k)