Buggy python submission (verdict: Runtime Error):
# C
import numpy as np

inp = input().split(' ')
N, M = int(inp[0]), int(inp[1])

inps = input().split(' ')
H = np.array([int(inps[i]) for i in range(len(inps))])
AB = []
for i in range(M):
    inps = input().split(' ')
    AB.append([int(inps[0]), int(inps[1])])
    
import pandas as pd

df_1, df_2 = pd.DataFrame(), pd.DataFrame()
tmp = np.array(AB).T
df_1['1'] = tmp[0]
df_1['2'] = tmp[1]
df_2['1'] = tmp[1]
df_2['2'] = tmp[0]
print(sum([sum(df['2'].apply(lambda t: H[t-1]) <= H[g-1]) - len(df) == 0 for g, df in pd.concat([df_1, df_2]).groupby('1')]))

Fixed submission:
# C
N, M = map(int, input().split())
H = list(map(int, input().split()))

A = [0] * N
for i in range(M):
    a, b = map(int, input().split())
    A[a-1] = max(A[a-1], H[b-1])
    A[b-1] = max(A[b-1], H[a-1])
    
res = sum([H[i] > A[i] for i in range(N)])
print(res)

Buggy python submission (verdict: Time Limit Exceeded):
# C
import numpy as np

inp = input().split(' ')
N, M = int(inp[0]), int(inp[1])

inps = input().split(' ')
H = np.array([int(inps[i]) for i in range(len(inps))])
AB = []
for i in range(M):
    inps = input().split(' ')
    AB.append(set([int(inps[0]), int(inps[1])]))
    
def get_height(els):
    return H[els[0]-1] > H[els[1]-1]

def get_height_sum(arr):
    if not arr:
        return 1
    return np.prod(list(map(get_height, arr)))

def tmp(arr_arr):
    return sum(list(map(get_height_sum, arr_arr)))

connected = [[[i+1] + list(ab - {i+1}) for ab in AB if i+1 in ab] for i in range(N)]

print(int(tmp(connected)))

Fixed submission:
# C
N, M = map(int, input().split())
H = list(map(int, input().split()))

A = [0] * N
for i in range(M):
    a, b = map(int, input().split())
    A[a-1] = max(A[a-1], H[b-1])
    A[b-1] = max(A[b-1], H[a-1])
    
res = sum([H[i] > A[i] for i in range(N)])
print(res)

Buggy python submission (verdict: Runtime Error):
# C
import numpy as np

inp = input().split(' ')
N, M = int(inp[0]), int(inp[1])

inps = input().split(' ')
H = np.array([int(inps[i]) for i in range(len(inps))])
AB = []
for i in range(M):
    inps = input().split(' ')
    AB.append(set([int(inps[0]), int(inps[1])]))
    
def get_height(els):
    return H[els[0]-1] > H[els[1]-1]

def get_height_sum(arr):
    if not arr:
        return 1
    return np.prod(list(map(get_height, arr)))

def tmp(arr_arr):
    return (list(map(get_height_sum, arr_arr)))
    return sum(list(map(get_height_sum, arr_arr)))

connected = [[[i+1] + list(ab - {i+1}) for ab in AB if i+1 in ab] for i in range(N)]

print(int(tmp(connected)))

Fixed submission:
# C
N, M = map(int, input().split())
H = list(map(int, input().split()))

A = [0] * N
for i in range(M):
    a, b = map(int, input().split())
    A[a-1] = max(A[a-1], H[b-1])
    A[b-1] = max(A[b-1], H[a-1])
    
res = sum([H[i] > A[i] for i in range(N)])
print(res)

Buggy python submission (verdict: Runtime Error):
# C
import numpy as np

inp = input().split(' ')
N, M = int(inp[0]), int(inp[1])

inps = input().split(' ')
H = np.array([int(inp) for inp in range(len(inps))])
AB = []
for i in range(M):
    inps = input().split(' ')
    AB.append(set([int(inps[0]), int(inps[1])]))
    
def get_height(els):
    return H[els[0]-1] >= H[els[1]-1]

def get_height_sum(arr):
    return np.prod(list(map(get_height, arr)))

def tmp(arr_arr):
    return (list(map(get_height_sum, arr_arr)))

connected = [[[i+1] + list(ab - {i+1}) for ab in AB if i+1 in ab] for i in range(N)]

print(int(tmp(connected)))

Fixed submission:
# C
N, M = map(int, input().split())
H = list(map(int, input().split()))

A = [0] * N
for i in range(M):
    a, b = map(int, input().split())
    A[a-1] = max(A[a-1], H[b-1])
    A[b-1] = max(A[b-1], H[a-1])
    
res = sum([H[i] > A[i] for i in range(N)])
print(res)