n,q = map(int,input().split())
freq = list(map(int,input().split()))

prev = freq[0]
freq[0] = 0
temp = 0

for i in range(1,n,1):
    if(freq[i] >= prev):
        prev = freq[i]
        freq[i] = temp
    else:
        prev = freq[i]
        temp += 1
        freq[i] = temp


for _ in range(q):
    a,b = map(int,input().split())
    if(a == b):
        print("YES")
    elif(freq[a - 1] == freq[b - 1]):
        print("YES")
    else:
        print("NO")