Buggy python submission (verdict: Runtime Error):
import sys

input = sys.stdin
N, W = input().split()
aArr = list()
ans = 0
tmp = int(N)
MOD = 10 ** 9 + 7
aArr = set(map(int, input()))

tmp = 0
tmpB = 0
ans = 1
for i in range(int(N)):
    if (i in aArr):
        tmp = 0
    elif i < 2:
        tmp = 1
    else:
        tmp = ans
    ans = (tmp + tmpB) % MOD
    tmpB = tmp
print(ans)


Fixed submission:
import sys
N, W = input().split()
aArr = list()
ans = 0
tmp = int(N)
MOD = 10 ** 9 + 7
aArr = set(map(int, sys.stdin))

tmp = 0
tmpB = 0
ans = 1
for i in range(int(N)):
    if (i in aArr):
        tmp = 0
    elif i < 2:
        tmp = 1
    else:
        tmp = ans
    ans = (tmp + tmpB) % MOD
    tmpB = tmp
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
N,W = input().split()
aArr = list()
ans = 0
tmp = int(N)
MOD = 10**9+7
for i in range(int(W)):
    inputInt = int(input())
    aArr.append(inputInt)
    if inputInt - tmp == 1:
        print(ans)
        exit()
    tmp = inputInt

tmp = 0
tmpB = 0
ans = 1
for i in range(int(N)):
    if(i in aArr):
        tmp = 0
    elif i < 2:
        tmp = 1
    else:
        tmp = ans
    ans = (tmp + tmpB) % MOD
    tmpB = tmp
print(ans)

Fixed submission:
import sys
N, W = input().split()
aArr = list()
ans = 0
tmp = int(N)
MOD = 10 ** 9 + 7
aArr = set(map(int, sys.stdin))

tmp = 0
tmpB = 0
ans = 1
for i in range(int(N)):
    if (i in aArr):
        tmp = 0
    elif i < 2:
        tmp = 1
    else:
        tmp = ans
    ans = (tmp + tmpB) % MOD
    tmpB = tmp
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
N,W = input().split()
aArr = list()
ans = 0
tmp = int(N)
for i in range(int(W)):
    inputInt = int(input())
    aArr.append(inputInt)
    if inputInt - tmp == 1:
        print(ans)
        exit()
    tmp = inputInt
tmp = 0
intArr = list()
for i in range(int(N)+1):
    if(i in aArr):
        intArr.append(0)
    elif i < 2:
        intArr.append(1)
    else:
        intArr.append(intArr[i-2] + intArr[i-1])
print(intArr[int(N)] % 1000000007)


Fixed submission:
import sys
N, W = input().split()
aArr = list()
ans = 0
tmp = int(N)
MOD = 10 ** 9 + 7
aArr = set(map(int, sys.stdin))

tmp = 0
tmpB = 0
ans = 1
for i in range(int(N)):
    if (i in aArr):
        tmp = 0
    elif i < 2:
        tmp = 1
    else:
        tmp = ans
    ans = (tmp + tmpB) % MOD
    tmpB = tmp
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
N,W = input().split()
aArr = list()
ans = 0
tmp = int(N)
for i in range(int(W)):
    inputInt = int(input())
    aArr.append(inputInt)
    if inputInt - tmp == 1:
        print(ans)
        exit()
    tmp = inputInt

tmp = 0
tmpB = 0
ans = 1
for i in range(int(N)):
    if(i in aArr):
        tmp = 0
    elif i < 2:
        tmp = 1
    else:
        tmp = ans
    ans = tmp + tmpB
    tmpB = tmp
print(ans % 1000000007)

Fixed submission:
import sys
N, W = input().split()
aArr = list()
ans = 0
tmp = int(N)
MOD = 10 ** 9 + 7
aArr = set(map(int, sys.stdin))

tmp = 0
tmpB = 0
ans = 1
for i in range(int(N)):
    if (i in aArr):
        tmp = 0
    elif i < 2:
        tmp = 1
    else:
        tmp = ans
    ans = (tmp + tmpB) % MOD
    tmpB = tmp
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
N,W = input().split()
aArr = list()
ans = 0
tmp = int(N)
for i in range(int(W)):
    inputInt = int(input())
    aArr.append(inputInt)
    if inputInt - tmp == 1:
        print(ans)
        exit()
    tmp = inputInt
tmp = 0
intArr = list()
for i in range(int(N)+1):
    if(i in aArr):
        intArr.append(0)
    elif i < 2:
        intArr.append(1)
    else:
        intArr.append(intArr[i-2] + intArr[i-1])
print(intArr[int(N)] % 1000000007)

Fixed submission:
import sys
N, W = input().split()
aArr = list()
ans = 0
tmp = int(N)
MOD = 10 ** 9 + 7
aArr = set(map(int, sys.stdin))

tmp = 0
tmpB = 0
ans = 1
for i in range(int(N)):
    if (i in aArr):
        tmp = 0
    elif i < 2:
        tmp = 1
    else:
        tmp = ans
    ans = (tmp + tmpB) % MOD
    tmpB = tmp
print(ans)