qyliang/CodeNanoFix huggingface dataset:
Buggy code:
M,D=map(int,input().split())

d1=0
d2=0
count=0
for m in range(4,M+1):
    for d in range(22,D+1):
        d1=d%10
        d2=(d-d1)/10
        if d1*d2==m and d2 >= 2:
            print(m,d)
            count+=1

print(count)

Fixed code:
M,D=map(int,input().split())

d1=0
d2=0
count=0
for m in range(1,M+1):
    for d in range(1,D+1):
        d1=d%10
        d2=d//10
        if d1*d2==m and d2 >= 2 and d1 >= 2:
            count+=1

print(count)
Buggy code:
import sys


def main():
    m, d = [int(s) for s in sys.stdin.readline().strip().split()]

    ans = 0
    for month in range(1, m+1):
        for day in range(22, d+1):
            if (day % 10) > 1 and (day // 10) > 1:
                if (day % 10) * (day // 10) == month:
                    print(month, day)
                    ans += 1
    print(ans)


main()


Fixed code:
import sys


def main():
    m, d = [int(s) for s in sys.stdin.readline().strip().split()]

    ans = 0
    for month in range(1, m+1):
        for day in range(22, d+1):
            if (day % 10) > 1 and (day // 10) > 1:
                if (day % 10) * (day // 10) == month:
                    ans += 1
    print(ans)


main()
Buggy code:
M, D = map(int, input().split())
my_list = []
for i in range(1, D + 1): 
    new = []
    number = list(str(i))
    for t in range(0, len(number)):
        new.append(int(number[t]))
    if len(new) == 1:
        continue
    else:
        if new[0] >= 2 and new[1] >= 2:
            for k in range(1, M + 1): 
                if k == (new[0] * new[1]):
                    my_list.append(k)
                    my_list.append(i)
                else:
                    continue
        else:
            continue
print(len(my_list) / 2)


Fixed code:
M, D = map(int, input().split())
my_list = []
for i in range(1, D + 1): 
    new = []
    number = list(str(i))
    for t in range(0, len(number)):
        new.append(int(number[t]))
    if len(new) == 1:
        continue
    else:
        if new[0] >= 2 and new[1] >= 2:
            for k in range(1, M + 1): 
                if k == (new[0] * new[1]):
                    my_list.append(k)
                    my_list.append(i)
                else:
                    continue
        else:
            continue
print(int(len(my_list) / 2))
Buggy code:
M,D = map(int,input().split())
cnt = 0

for i in range(M+1):
    for j in range(D):
        if len(str(j)) >= 2:
            aaa=str(j)[-1]
            bbb=str(j)[-2]
            if int(aaa) >= 2 and int(bbb) >= 2 and int(aaa)*int(bbb) == i :
                print(bbb+aaa)
                cnt +=1
        else:
            pass

Fixed code:
M,D = map(int,input().split())
cnt = 0


for i in range(M+1):
    for j in range(D+1):
        if len(str(j)) >= 2:
            aaa=str(j)[-1]
            bbb=str(j)[-2]
            if int(aaa) >= 2 and int(bbb) >= 2 and int(aaa)*int(bbb) == i :
                cnt +=1
        else:
            pass
print(cnt)
Buggy code:
m,d = map(int,input().split())
c = 0
for i in range(22,d+1):
    if i//10*i%10<=m:
        c+=1
print(c)

Fixed code:
m,d = map(int,input().split())
c = 0
for i in range(22,d+1):
    if i//10*(i%10)<=m and i%10>=2:
        c+=1
print(c)
Buggy code:
M,D= int(input().split())
# print(M,D)

count = 0
for ii in range(1,M+1):
    
    for i in range (22, D + 1):
        #print(i)
        d1 = i % 10
        d2 = i // 10
        
        if d1 < 2 or d2 < 2:
            continue
        
        if ii == d1 * d2:
            count = count + 1
        
        

print(count)

Fixed code:
M,D=map(int,input().split())
# print(M,D)
 
count = 0
for ii in range(1,M+1):
    
    for i in range (22, D + 1):
        #print(i)
        d1 = i % 10
        d2 = i // 10
        
        if d1 < 2 or d2 < 2:
            continue
        
        if ii == d1 * d2:
            count = count + 1
        
        
 
print(count)
Buggy code:
# -*- coding: utf-8 -*-

if __name__ == '__main__':
    M, D = map(int, input().split())
    #D10 = int(D[0])
    #D1 = int(D[1])

    count = 0
    for m in range(1,M+1):
        for d in range(1,D+1):
            if d>=10:
                d_ = str(d)
                D10 = int(d_[0])
                D1 = int(d_[1])
                D_ = D10 * D1
                if m == D_ and D10>=2 and D1>=2:
                    print(d_,m)
                    count += 1
                else:
                    D_ = 0

    print(count)


Fixed code:
# -*- coding: utf-8 -*-

if __name__ == '__main__':
    M, D = map(int, input().split())
    #D10 = int(D[0])
    #D1 = int(D[1])

    count = 0
    for m in range(1,M+1):
        for d in range(1,D+1):
            if d>=10:
                d_ = str(d)
                D10 = int(d_[0])
                D1 = int(d_[1])
                D_ = D10 * D1
                if m == D_ and D10>=2 and D1>=2:
                    count += 1
                else:
                    D_ = 0

    print(count)
Buggy code:
m, d = map(int, input().split())
if m < 4 or d < 22:
  print("0")
else:
  res=0
  for i in range(22, d+1):
    d1, d2 = int(d/10), d%10
    res += 1 if d1*d2<=m else 0
   print(res)

Fixed code:
m, d = map(int, input().split())
if m < 4 or d < 22:
  print("0")
else:
  res=0
  for i in range(22, d+1):
    d1, d2 = int(i/10), i%10
    if d2 < 2:
      continue
    res += 1 if d1*d2<=m else 0
  print(res)
Buggy code:
m,d=map(int,input().split())
if d<22:
  print(0)
else:
  ans=0
  for M in range(m+1)[1:]:
    for D in range(d+1)[23:]:
      q=D%10
      r=(D-q)//10
      if r>=2 and q>=2 and M==q*r:
        ans += 1
  print(ans)

Fixed code:
m,d=map(int,input().split())
if d<22:
  print(0)
else:
  ans=0
  for M in range(m+1)[1:]:
    for D in range(d+1)[22:]:
      q=D%10
      r=(D-q)//10
      if r>=2 and q>=2 and M==q*r:
        ans += 1
  print(ans)
Buggy code:
m,d=input().strip().split(' ')
m,d=[int(m),int(d)]
c=0
for i in range(22,d+1):
  d1=str(d)
  if int(d1[1])>=2 and int(d1[1]*d1[0])<=m:
    c+=1
print c

Fixed code:
m,d=input().strip().split(' ')
m,d=[int(m),int(d)]
c=0
for i in range(22,d+1):
  d1=str(i)
  if int(d1[1])>=2 and int(d1[1])*int(d1[0])<=m:
    c+=1
print (c)
Buggy code:
N, K = map(int, input().split())
A_LIST = list(map(int, input().split()))
MOD = 10 ** 9 + 7
t = 0
tr = 0
ans = 0
for i in range(N):
    for j in range(i + 1, N):
        if A_LIST[i] > A_LIST[j]:
            t += 1
    for j in range(N):
        if A_LIST[i] > A_LIST[j]:
            tr += 1
ans += t * K % MOD
ans += tr * (K - 1) * K % MOD
print(ans % MOD)


Fixed code:
N, K = map(int, input().split())
A_LIST = list(map(int, input().split()))
MOD = 10 ** 9 + 7
t = 0
tr = 0
ans = 0
for i in range(N):
    for j in range(i + 1, N):
        if A_LIST[i] > A_LIST[j]:
            t += 1
    for k in range(N):
        if A_LIST[i] > A_LIST[k]:
            tr += 1
ans += t * K % MOD
ans += tr * (K - 1) * K // 2 % MOD
print(ans % MOD)
Buggy code:
n,k = map(int, input().split())
a = list(map(int, input().split()))
MOD = 10 ** 9 + 7

cnt = 0
for i in range(n-1):
    for j in range(i+1,n):
        if a[i] > a[j]: cnt += 1

y = 0
for a1 in a:
    for a2 in a:
        print(a1,a2)
        if a1 > a2: y += 1

ans = (cnt * k + y * k * (k-1)//2)%MOD
print(ans)

Fixed code:
n,k = map(int, input().split())
a = list(map(int, input().split()))
MOD = 10 ** 9 + 7

cnt = 0
for i in range(n-1):
    for j in range(i+1,n):
        if a[i] > a[j]: cnt += 1

y = 0
for a1 in a:
    for a2 in a:
        if a1 > a2: y += 1

ans = (cnt * k + y * k * (k-1)//2)%MOD
print(ans)
Buggy code:
n,k=map(int,input().split())
A=list(map(int,input().split()))

cnt=0
a=0

if n==1:print(0)
else:
  for i in range(n-1):
    for j in range(i+1,n):
      if A[i]>A[j]:
        cnt+=1

  for i in range(n):
    for j in range(n):
      if A[i]>A[j]:
        a+=1

      
print((cnt*k+a*k*(k-1)/2)%(10**9+7))


Fixed code:
n,k=map(int,input().split())
A=list(map(int,input().split()))

cnt=0
a=0

if n==1:print(0)
else:
  for i in range(n-1):
    for j in range(i+1,n):
      if A[i]>A[j]:
        cnt+=1

  for i in range(n):
    for j in range(n):
      if A[i]>A[j]:
        a+=1

      
  print(int(cnt*k+a*(k*(k-1)//2))%(10**9+7))
Buggy code:
N, K = map(int, input().split())
A = list(map(int, input().split()))

# count inv in A
cnt = 0
for i in range(N):
    for j in range(i, N):
        if A[i] > A[j]:
            cnt += 1

cmb_cnt = 0
for a in A:
   cmb_cnt += len([x for x in A if x < a]) 

kC2 = (K*(K-1))//2
ans = (cnt*K)+(cmb_cnt*kC2)
print(cnt)
print(cmb_cnt)
print(ans%(10**9+7))


Fixed code:
N, K = map(int, input().split())
A = list(map(int, input().split()))

cnt = 0
for i in range(N):
    for j in range(i, N):
        if A[i] > A[j]:
            cnt += 1

cmb_cnt = 0
for a in A:
   cmb_cnt += len([x for x in A if x < a]) 

kC2 = (K*(K-1))//2
ans = (cnt*K)+(cmb_cnt*kC2)
print(ans%(10**9+7))
Buggy code:
n,k=map(int,input().split())
*a,=map(int,input().split())
p=10**9+7
cnt=0
ans1=0
for i in range(n):
    x=[j for j in a[:i] if j>a[i]]
    ans1+=len(x)
un=(n*(n-1))//2
k%=p
ans=ans1*k+(k*(k-1)//2)*un
print(ans%p)

Fixed code:
n,k=map(int,input().split())
*a,=map(int,input().split())
p=10**9+7
cnt=0
ans1=0
for i in range(n):
    x=[j for j in a[:i] if j>a[i]]
    ans1+=len(x)
a=sorted(a)
un=0
for i in range(n):
  y=[j for j in a[i+1:] if j>a[i]]
  un+=len(y)
k%=p
ans=ans1*k+(k*(k-1)//2)*un
print(ans%p)
Buggy code:
N, K = map(int, input().split())
A_list = list(map(int, input().split()))
same = 0
diff = 0

for i in range(N):
  for j in range(N):
    if N[i] > N[j]:
      if i < j:
        same += 1
        diff += 1
      elif i>j:
        diff += 1

ans = (same*K) + (diff*((K * (K-1))//2))
print(ans%(10**9 + 7))
        

Fixed code:
N, K = map(int, input().split())
A_list = list(map(int, input().split()))
same = 0
diff = 0
 
for i in range(N):
  for j in range(N):
    if A_list[i] > A_list[j]:
      if i < j:
        same += 1
        diff += 1
      elif i>j:
        diff += 1
 
ans = (same*K) + (diff*((K * (K-1))//2))
print(ans%(10**9 + 7))
Buggy code:
from sys import stdin
from collections import defaultdict, deque, Counter
import sys
from bisect import bisect_left
import heapq
import math

sys.setrecursionlimit(1000000000)
MIN = -10 ** 9
MOD = 10 ** 9 + 7
INF = float("inf")
IINF = 10 ** 18

#n = int(stdin.readline().rstrip())
#l = list(map(int, stdin.readline().rstrip().split()))
n,k = map(int, stdin.readline().rstrip().split())
#S = [list(stdin.buffer.readline().decode().rstrip()) for _ in range(h)]
A = list(map(int, stdin.readline().rstrip().split()))

a_tento = 0
for i in range(n-1):
    for j in range(i+1,n):
        if A[i] > A[j]:
            a_tento += 1

a_inten = 0
for i in range(n):
    for j in range(n):
        if A[i] > A[j]:
            a_inten += 1

a_inten = a_inten - a_tento
print(a_inten)

print(int((a_tento*(k*(k+1)/2)+ a_inten*((k*(k-1)/2)))  %MOD))


Fixed code:
from sys import stdin
from collections import defaultdict, deque, Counter
import sys
from bisect import bisect_left
import heapq
import math

sys.setrecursionlimit(10000000)
MIN = -10 ** 9
MOD = 10 ** 9 + 7
INF = float("inf")
IINF = 10 ** 18

#n = int(stdin.readline().rstrip())
#l = list(map(int, stdin.readline().rstrip().split()))
n,k = map(int, stdin.readline().rstrip().split())
#S = [list(stdin.buffer.readline().decode().rstrip()) for _ in range(h)]
A = list(map(int, stdin.readline().rstrip().split()))



ans = 0
for i in range(n):
    right = 0
    left = 0
    for j in range(i):
        if A[i] > A[j]:
            left += 1
    for j in range(i+1, n):
        if A[i] > A[j]:
            right += 1
    ans += int(right*k*(k+1)//2 + left*k*(k-1)//2)

print(ans % MOD)
Buggy code:
N, K = (int(i) for i in input().split())
A = [int(i) for i in input().split()]

numc = 0
numf = 0

for i in range(0, N):
    for j in range(0,i):
        if A[j] > A[i]:
            numc += 1
        if A[i] > A[j]:
            numf += 1
numbers = numc*K*(K+1)+ numf*K*(K-1)
 
ans = numbers % (10**9 + 7) / 2
print(ans)

Fixed code:
N, K = (int(i) for i in input().split())
A = [int(i) for i in input().split()]
numc = 0
numf = 0

for i in range(0, N):
    for j in range(0,i):
        if A[j] > A[i]:
            numc += 1
        if A[i] > A[j]:
            numf += 1
numbers = numc*K*(K+1) + numf*K*(K-1)
 
ans = int(numbers//2 % (10**9 + 7))
print(ans)
Buggy code:
import numpy as np
N,K = map(int,input().split())
Alist = np.array(list(map(int,input().split())))
counter = 0
for i,A in enumerate(Alist,0):
    fir_tenti = np.count_nonzero(A>Alist[i:])
    print(fir_tenti)
    counter += (K*(fir_tenti*(K+1)))/2
    second_tenti = np.count_nonzero(A>Alist)
    print(second_tenti)
    counter += second_tenti*K**2-(2*second_tenti*K)+second_tenti/2
print(int(counter%(10**9+7)))

Fixed code:
import numpy as np
N,K = map(int,input().split())
Alist = np.array(list(map(int,input().split())))
counter = 0
for i,A in enumerate(Alist,0):
    fir_tenti = np.count_nonzero(A>Alist[i:])
    counter += (K*fir_tenti*(K+1))//2
    second_tenti = np.count_nonzero(A>Alist[:i+1])
    counter += (second_tenti*K**2-second_tenti*K)//2

print(int(counter%1000000007))
Buggy code:
n,k=map(int, input().split())
a=list(map(int, input().split()))
ans=0
for i in range(n-1):
  for j in range(i+1,n):
    if a[i]>a[j]:
      ans+=1
print(10**9+7)
x=(ans*k*(k+1))//2
y=(n*(n-1))//2
z=(k*(k-1))//2
print((x+(y-ans)*z)%(10**9+7))

Fixed code:
n,k=map(int, input().split())
a=list(map(int, input().split()))
ans=0
rev=0
for i in range(n-1):
  for j in range(i+1,n):
    if a[i]>a[j]:
      ans+=1
    if a[i]<a[j]:
      rev+=1
      
x=(ans*k*(k+1))//2
y=(rev*k*(k-1))//2
print((x+y)%(10**9+7))
Buggy code:
N, K = map(int, input().split())
A = list(map(int, input().split()))

result = 0

if K == 1:
    B = A
    for i in range(N):
        for j in range(i+1, N):
            if B[i] > B[j]:
                result += 1
else:
    B = A + A
    for i in range(N):
        C = 0
        D = 0
        E = 0
        for j in range(i+1, N):
            if B[i] > B[j]:
                C += 1
        for j in range(N, N+i+1):
            if B[i] > B[j]:
                D += 1
        E = K * (K * (C + D) + C - D) / 2
        E = E % (10**9 + 7)
        result += E
        result = result % (10**9 + 7)
    result = result % (10**9 + 7)

print(int(result))


Fixed code:
N, K = map(int, input().split())
A = list(map(int, input().split()))

result = 0

if K == 1:
    B = A
    for i in range(N):
        for j in range(i+1, N):
            if B[i] > B[j]:
                result += 1
else:
    B = A + A
    for i in range(N):
        C = 0
        D = 0
        E = 0
        for j in range(i+1, N):
            if B[i] > B[j]:
                C += 1
        for j in range(N, N+i+1):
            if B[i] > B[j]:
                D += 1
        E = K * (K * (C + D) + C - D) // 2
        E = E % (10**9 + 7)
        result += E
    result = result % (10**9 + 7)

print(result)
Buggy code:
n, k = map(int, input().split())
A = list(map(int, input().split()))

Before = []
After = []

for i in range(n):
    now = A[i]
    before = 0
    after = 0
    for j in range(i):
        if now > A[j]:
            before += 1
    for l in range(i,n):
        if now > A[l]:
            after += 1
    Before.append(before)
    After.append(after)

ans = 0
mod = 10**9+7
for i in range(n):
    ans += int(Before[i]*(k-1)*k/2 + After[i]*k*(k+1)/2)
    ans %= mod

print(ans)

Fixed code:
n, k = map(int, input().split())
A = list(map(int, input().split()))

Before = []
After = []

for i in range(n):
    now = A[i]
    before = 0
    after = 0
    for j in range(i):
        if now > A[j]:
            before += 1
    for l in range(i+1,n):
        if now > A[l]:
            after += 1
    Before.append(before)
    After.append(after)

ans = 0
mod = 10**9+7
for i in range(n):
    if k%2 == 0:
        multi_one = int(k/2) * (k-1) % mod
        multi_two = int(k/2) * (k+1) % mod 
    else:
        multi_one = int((k-1)/2) * k % mod
        multi_two = int((k+1)/2) * k % mod
    plus = multi_one*Before[i]%mod + multi_two*After[i]%mod
    ans = (ans + plus) % mod

print(ans)
Buggy code:
[N, K] = [int(i) for i in input().split()]
A = [int(i) for i in input().split()]

B = A * 2
base1 = 0
base2 = 0

for i in range(N):
    count1 = 0
    count2 = 0
    for j in range(i+1, i+N):
        if B[i] > B[j]:
            if j < N:
                count1 += 1
            else:
                count2 += 1
        
    base1 += count1
    base2 += count2

    count1 = 0
    count2 = 0
    
ans = int((1/2)*base1*K*(K+1)) + int((1/2)*base2*(K-1)*(K))
    
divisor = 1000000007

print(ans % divisor)


Fixed code:
[N, K] = [int(i) for i in input().split()]
B = [int(i) for i in input().split()]*2

base1 = 0
base2 = 0

for i in range(N):
    count1 = 0
    count2 = 0
    for j in range(i+1, i+1+N):
        if B[i] > B[j]:
            if j < N:
                count1 += 1
            else:
                count2 += 1
        
    base1 += count1
    base2 += count2
    
ans = (base1*K*(K+1)+base2*(K-1)*K)//2
    
divisor = 1000000007

print(ans % divisor)
Buggy code:
import collections

N,K = map(int, input().split())
arr = list(map(int, input().split()))
c = collections.Counter(arr)

counts = list(c.values())[::-1]

if len(counts)==1:
  print(0)
else:
  value = 0
  for i,num in enumerate(arr):
    value += len([1 for x in arr if x<num])
  out_arr = value*K*(K-1)//2
  print(out_arr)
  
  in_arr = 0
  for j,num in enumerate(arr):
    in_arr += len([1 for x in arr[j+1:] if x<num])
  in_arr = in_arr*K
  print((out_arr+in_arr)%1000000007)
  

Fixed code:
import collections

N,K = map(int, input().split())
arr = list(map(int, input().split()))
c = collections.Counter(arr)

counts = list(c.values())[::-1]

if len(counts)==1:
  print(0)
else:
  value = 0
  for num in arr:
    value += len([1 for x in arr if x<num])
  out_arr = value*K*(K-1)//2
  
  in_arr = 0
  for j,num in enumerate(arr):
    in_arr += len([1 for x in arr[j+1:] if x<num])
  in_arr = in_arr*K
  print((out_arr+in_arr)%1000000007)
Buggy code:
N,K = map(int,input().split())
#N,K = map(int,'10 998244353'.split())
Alist = list(map(int,input().split()))
#Alist = list(map(int,'10 9 8 7 5 6 3 4 2 1'.split()))
beforeTnumber = [0]*N
afterTnumber = [0]*N
beforesum = 0
aftersum = 0
mod_num = 10**9+7

for now in range(N):
    for before in range(now):
        if Alist[before] < Alist[now]:
            beforeTnumber[now] += 1
    for after in range(now,N):
        if Alist[after] < Alist[now]:
            afterTnumber[now] += 1
            
for i in range(N):
    beforesum += beforeTnumber[i]
    aftersum += afterTnumber[i]

Ksum = ((K/2)*(K+1))%mod_num

print((((aftersum*(Ksum))%mod_num+(beforesum*(Ksum-1))%mod_num))%mod_num)

Fixed code:
N,K = map(int,input().split())
#N,K = map(int,'10 998244353'.split())
#N,K = map(int,'10 2'.split())
Alist = list(map(int,input().split()))
#Alist = list(map(int,'10 9 8 7 5 6 3 4 2 1'.split()))
beforeTnumber = [0]*N
afterTnumber = [0]*N
beforesum = 0
aftersum = 0
mod_num = 10**9+7

for now in range(N):
    for before in range(now):
        if Alist[before] < Alist[now]:
            beforeTnumber[now] += 1
    for after in range(now,N):
        if Alist[after] < Alist[now]:
            afterTnumber[now] += 1
            
beforesum = sum(beforeTnumber)
aftersum = sum(afterTnumber)

Kaftersum = ((K*(K+1))//2)%mod_num
Kbeforesum = ((K*(K-1))//2)%mod_num

print(int(((aftersum)*(Kaftersum)+(beforesum*Kbeforesum))%mod_num))
Buggy code:
def answer(arr, k):
    _mod = (10**9+7)
    left = 0
    right = 0
    for i in range(len(arr)):
        for j in range(i, len(arr)):
            if arr[i] > arr[j]:
                left += 1
            if arr[i] < arr[j]:
                right += 1
    left = (left * (k*(k+1))/2)%_mod
    right = (right * (k*(k+1))/2)%_mod
    return int((left+right)%_mod)

n, k = map(int, input().split())
arr = list(map(int, input().split()))
print(answer(arr, k))

Fixed code:
def answer(arr, k):
    _mod = (10**9+7)
    left = 0
    right = 0
    for i in range(len(arr)):
        for j in range(i, len(arr)):
            if arr[i] > arr[j]:
                left += 1
            if arr[i] < arr[j]:
                right += 1
    
    left = (left * (k*(k+1))//2)
    right = (right * (k*(k-1))//2)
    return int((left+right)%_mod)
    
n, k = map(int, input().split())
arr = list(map(int, input().split()))
print(answer(arr, k))
# print(answer2(arr, k))
Buggy code:
import sys
import re
import math
import collections
import decimal
import bisect
import itertools

import copy

# import heapq
# from collections import deque
# import decimal

# sys.setrecursionlimit(100001)
INF = sys.maxsize
MOD = 10 ** 9 + 7

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    n, k = ns()
    a = na()


    total = 0
    for i in range(n):
        for j in range(n):
            if a[i] < a[j]:
                total+=1
                total%=MOD

    ans = total*(k*(k-1)//2) % MOD

    cnt = 0
    for i in range(n):
        for j in range(i + 1, n):
            if a[j - 1] > a[j]:
                a[j - 1], a[j] = a[j], a[j - 1]
                cnt += 1
                cnt %= MOD

    res = (ans + (cnt * k) % MOD) % MOD

    print(res)


if __name__ == '__main__':
    main()


Fixed code:
import sys
import re
import math
import collections
import decimal
import bisect
import itertools

import copy

# import heapq
# from collections import deque
# import decimal

# sys.setrecursionlimit(100001)
INF = sys.maxsize
MOD = 10 ** 9 + 7

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    n, k = ns()
    a = na()

    total = 0
    for i in range(n):
        for j in range(n):
            if a[i] < a[j]:
                total += 1
                total %= MOD

    ans = total * (k * (k - 1) // 2) % MOD

    cnt = 0
    for i in range(n):
        for j in range(i):
            if a[j] > a[i]:
                cnt += 1
                cnt %= MOD
    cnt = cnt * k % MOD

    res = (ans + cnt) % MOD

    print(res)


if __name__ == '__main__':
    main()
Buggy code:
n,k=map(int,input().split())
M=10**9+7
a=list(map(int,input().split()))
cnt=[[0 for i in range(2)] for j in range(n)]
for i in range(n):
    for j in range(n):
        if j<i and a[j]<a[i]:
            cnt[i][0]+=1
        elif i<j and a[j]<a[i]:
            cnt[i][1]+=1
sum=0
for i in range(n):
    s=(1/2)*(k**2)*(cnt[i][0]+cnt[i][1])+(1/2)*(cnt[i][1]-cnt[i][0])*k
    s%=M
    sum+=s
    sum%=M
print(sum)

Fixed code:
n,k=map(int,input().split())
M=10**9+7
a=list(map(int,input().split()))
cnt=[[0 for i in range(2)] for j in range(n)]
for i in range(n):
    for j in range(n):
        if j<i and a[j]<a[i]:
            cnt[i][0]+=1
        elif i<j and a[j]<a[i]:
            cnt[i][1]+=1
sum=0
for i in range(n):
    s=((k*(cnt[i][0]+cnt[i][1])+(cnt[i][1]-cnt[i][0]))*k)//2
    sum+=s
    sum%=M
print(sum)
Buggy code:
import sys
import numpy as np

stdin = sys.stdin

ri = lambda: int(rs())
rl = lambda: list(map(int, stdin.readline().split()))
rs = lambda: stdin.readline().rstrip()  # ignore trailing spaces

N, K = rl()
MOD = 10 ** 9 + 7
A = np.array(rl())
B = np.array([])
answer = 0
for a in A:
    answer += (B > a).sum()
    B = np.append(B, a)
answer *= K
answer += (N-1) * N // 2 * (K-1) * K // 2
print(answer%MOD)
#01

Fixed code:
import sys
import numpy as np

stdin = sys.stdin

ri = lambda: int(rs())
rl = lambda: list(map(int, stdin.readline().split()))
rs = lambda: stdin.readline().rstrip()  # ignore trailing spaces

N, K = rl()
MOD = 10 ** 9 + 7
A = np.array(rl())
B = np.array([])
answer = 0
add = 0
for a in A:
    answer += (B > a).sum()
    add += (A > a).sum()
    B = np.append(B, a)
answer *= K
answer %= MOD
time = (K-1) * K // 2 % MOD
answer += add * time
print(answer%MOD)
#50