Buggy python submission (verdict: Time Limit Exceeded):
N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

Buggy python submission (verdict: Time Limit Exceeded):
N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1] + dp[i-2]

print(dp[N]%mod)

Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

Buggy python submission (verdict: Time Limit Exceeded):
import sys

sys.setrecursionlimit(100000)

N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]

pre = 0
last = -1
ans_l = []
flag = False
l.append(N+1)

nCr = {}
def cmb(n, r):
    if r == 0 or r == n: return 1
    if r == 1: return n
    if (n,r) in nCr: return nCr[(n,r)]
    nCr[(n,r)] = cmb(n-1,r) + cmb(n-1,r-1)
    return nCr[(n,r)]

for i in l:
    if i==1:
        last = 1
        continue
    if i-last==1:
        flag =True
        break
    n = i - last - 3
    r = 0
    tmp = 1
    dif = 1
    # print("n",n)
    while dif>0:
        r += 1
        if n<=0 or n<r:
            break
        # print(n,r)
        tmp += cmb(n, r)
        dif = n-r
        # print("tmp",tmp,n,r)
        n -= 1
    ans_l.append(tmp)
    # print(i,ans_l)
    last = i
if flag:
    print(0)
else:
    ans = 1
    for i in ans_l:
        ans*=i
    print(ans%1000000007)


Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

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

sys.setrecursionlimit(2000)

N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]

pre = 0
last = -1
ans_l = []
flag = False
l.append(N+1)

nCr = {}
def cmb(n, r):
    if r == 0 or r == n: return 1
    if r == 1: return n
    if (n,r) in nCr: return nCr[(n,r)]
    nCr[(n,r)] = cmb(n-1,r) + cmb(n-1,r-1)
    return nCr[(n,r)]

for i in l:
    if i==1:
        last = 1
        continue
    if i-last==1:
        flag =True
        break
    n = i - last - 3
    r = 0
    tmp = 1
    dif = 1
    # print("n",n)
    while dif>0:
        r += 1
        if n<=0 or n<r:
            break
        # print(n,r)
        tmp += cmb(n, r)
        dif = n-r
        # print("tmp",tmp,n,r)
        n -= 1
    ans_l.append(tmp)
    # print(i,ans_l)
    last = i
if flag:
    print(0)
else:
    ans = 1
    for i in ans_l:
        ans*=i
    print(ans%1000000007)


Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

Buggy python submission (verdict: Runtime Error):
N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]
 
pre = 0
last = -1
ans_l = []
flag = False
l.append(N+1)
 
nCr = {}
def cmb(n, r):
    if r == 0 or r == n: return 1
    if r == 1: return n
    if (n,r) in nCr: return nCr[(n,r)]
    nCr[(n,r)] = cmb(n-1,r) + cmb(n-1,r-1)
    return nCr[(n,r)]
 
for i in l:
    if i==1:
        last = 1
        continue
    if i-last==1:
        flag =True
        break
    n = i - last - 3
    r = 0
    tmp = 1
    dif = 1
    while dif>0:
        r += 1
        if n<=0 or n<r:
            break
        tmp += cmb(n, r)
        dif = n-r
        n -= 1
    ans_l.append(tmp)
    # print(i,ans_l)
    last = i
if flag:
    print(0)
else:
    ans = 1
    for i in ans_l:
        ans*=i
    print(ans%1000000007)

Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

Buggy python submission (verdict: Runtime Error):
N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]

pre = 0
last = -1
ans_l = []
flag = False
l.append(N+1)

nCr = {}
def cmb(n, r):
    if r == 0 or r == n: return 1
    if r == 1: return n
    if (n,r) in nCr: return nCr[(n,r)]
    nCr[(n,r)] = cmb(n-1,r) + cmb(n-1,r-1)
    return nCr[(n,r)]

for i in l:
    if i==1:
        last = 1
        continue
    if i-last==1:
        flag =True
        break
    n = i - last - 3
    r = 0
    tmp = 1
    dif = 1
    while dif>0:
        r += 1
        if n<=0 or n<r:
            break
        tmp += cmb(n, r)
        dif = n-r
        n -= 1
    ans_l.append(tmp)
    # print(i,ans_l)
    last = i
if flag:
    print(0)
else:
    ans = 1
    for i in ans_l:
        ans*=i
    print(ans%1000000007)

Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

Buggy python submission (verdict: Runtime Error):
N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]

pre = 0
last = -1
ans_l = []
flag = False
l.append(N+1)

nCr = {}
def cmb(n, r):
    if r == 0 or r == n: return 1
    if r == 1: return n
    if (n,r) in nCr: return nCr[(n,r)]
    nCr[(n,r)] = cmb(n-1,r) + cmb(n-1,r-1)
    return nCr[(n,r)]

for i in l:
    if i==1:
        last = 1
        continue
    if i-last==1:
        flag =True
        break
    n = i - last - 3
    r = 0
    tmp = 1
    dif = 1
    print("n",n)
    while dif>0:
        r += 1
        if n<=0 or n<r:
            break
        print(n,r)
        tmp += cmb(n, r)
        dif = n-r
        print("tmp",tmp,n,r)
        n -= 1
    ans_l.append(tmp)
    # print(i,ans_l)
    last = i
if flag:
    print(0)
else:
    ans = 1
    for i in ans_l:
        ans*=i
    print(ans%1000000007)

Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

Buggy python submission (verdict: Runtime Error):
N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]

pre = 0
last = -1
ans_l = []
flag = False
l.append(N+1)

nCr = {}
def cmb(n, r):
    if r == 0 or r == n: return 1
    if r == 1: return n
    if (n,r) in nCr: return nCr[(n,r)]
    nCr[(n,r)] = cmb(n-1,r) + cmb(n-1,r-1)
    return nCr[(n,r)]

for i in l:
    if i==1:
        last = 1
        continue
    if i-last==1:
        flag =True
        break
    n = i - last - 3
    r = 0
    tmp = 1
    dif = 1
    # print("n",n)
    while dif>0:
        r += 1
        tmp += cmb(n, r)
        dif = n-r
        n -= 1
        # print("tmp",tmp,n,r)
    ans_l.append(tmp)
    # print(i,ans_l)
    last = i
if flag:
    print(0)
else:
    ans = 1
    for i in ans_l:
        ans*=i
    print(ans%1000000007)

Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

Buggy python submission (verdict: Runtime Error):
N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]

pre = 0
last = -1
ans_l = []
flag = False
l.append(N+1)

nCr = {}
def cmb(n, r):
    if r == 0 or r == n: return 1
    if r == 1: return n
    if (n,r) in nCr: return nCr[(n,r)]
    nCr[(n,r)] = cmb(n-1,r) + cmb(n-1,r-1)
    return nCr[(n,r)]

for i in l:
    if i==1:
        last = 1
        continue
    if i-last==1:
        flag =True
        break
    n = i - last - 3
    r = 0
    tmp = 1
    dif = 1
    # print("n",n)
    while dif>0:
        r += 1
        tmp += cmb(n, r, exact=True)
        dif = n-r
        n -= 1
        # print("tmp",tmp,n,r)
    ans_l.append(tmp)
    # print(i,ans_l)
    last = i
if flag:
    print(0)
else:
    ans = 1
    for i in ans_l:
        ans*=i
    print(ans%1000000007)

Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)

Buggy python submission (verdict: Runtime Error):
from scipy.special import comb

N,M = map(int,input().split(' '))
l = [int(input()) for i in range(M)]

pre = 0
last = -1
ans_l = []
flag = False
l.append(N+1)
for i in l:
    if i==1:
        last = 1
        continue
    if i-last==1:
        flag =True
        break
    n = i - last - 3
    r = 0
    tmp = 1
    dif = 1
    # print("n",n)
    while dif>0:
        r += 1
        tmp += comb(n, r, exact=True)
        dif = n-r
        n -= 1
        # print("tmp",tmp,n,r)
    ans_l.append(tmp)
    # print(i,ans_l)
    last = i
if flag:
    print(0)
else:
    ans = 1
    for i in ans_l:
        ans*=i
    print(ans%1000000007)

Fixed submission:
N,M = map(int,input().split(' '))
l = set([int(input()) for i in range(M)])

mod = 10**9+7
dp = {}
for i in range(N+1):
    dp[i] = 1
dp[1] = 0 if 1 in l else 1

for i in range(2,N+1):
    if i in l:
        dp[i] = 0
        continue
    else:
        dp[i] = dp[i-1]%mod + dp[i-2]%mod
        dp[i] = dp[i]%mod

print(dp[N]%mod)