qyliang/CodeNanoFix huggingface dataset:
Buggy code:
from decimal import *
getcontext().prec = 20
n, k = map(int,input().split())
a = list(map(int,input().split()))
inner = Decimal(0)
outer = Decimal(0)
for i in range(0,n):
    for j in range(0,n):
        if a[i] > a[j]:
            outer += 1
            if i < j:
                inner += 1

print((Decimal(((inner) * (k)) + ((outer) * (Decimal(k) * (k-1)) / 2))%(1000000007)

Fixed code:
from decimal import *
n, k = map(int,input().split())
a = list(map(int,input().split()))
inner = 0
outer = 0
for i in range(0,n):
    for j in range(0,n):
        if a[i] > a[j]:
            outer += 1
            if i < j:
                inner += 1

print((Decimal(((inner) * (k)) + Decimal((outer) * Decimal((k) * (k-1)) / 2))%(1000000007)))
Buggy code:
import sys

def input(): return sys.stdin.readline()[:-1]
def ceil(x, y=1): return int(-(-x // y))
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))
def MATINT(h): return [list(map(int, input().split())) for _ in range(h)]
def MATSTR(h): return [input() for _ in range(h)]
def Yes(): print('Yes')
def No(): print('No')
def YES(): print('YES')
def NO(): print('NO')
sys.setrecursionlimit(10 ** 9)
inf = float('inf')
mod = 10 ** 9 + 7

def main():
    N, K = MAP()
    A = LIST()
    count = 0
    for i in range(N):
        count_all = 0
        count_ = 0
        for j in range(N):
            if A[i] > A[j]:
                count_all += 1
                if i < j:
                    count_ += 1
        count += count_ * K
        count += count_all * (K - 1) * K / 2
    print(int(count) % mod)

if __name__ == '__main__':
    main()


Fixed code:
import sys

def input(): return sys.stdin.readline()[:-1]
def ceil(x, y=1): return int(-(-x // y))
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))
def MATINT(h): return [list(map(int, input().split())) for _ in range(h)]
def MATSTR(h): return [input() for _ in range(h)]
def Yes(): print('Yes')
def No(): print('No')
def YES(): print('YES')
def NO(): print('NO')
sys.setrecursionlimit(10 ** 9)
inf = float('inf')
mod = 10 ** 9 + 7

def main():
    N, K = MAP()
    A = LIST()
    count = 0
    if K % 2 == 0:
        tmp1 = int(K / 2)
        tmp2 = K - 1
    else:
        tmp1 = K
        tmp2 = int((K - 1) / 2)
    for i in range(N):
        count_all = 0
        count_ = 0
        for j in range(N):
            if A[i] > A[j]:
                count_all += 1
                if i < j:
                    count_ += 1
        count += count_ * K % mod
        count += (((tmp1 * tmp2) % mod) * count_all) % mod
        count = count % mod
        # import pdb; pdb.set_trace()
    print(int(count) % mod)

if __name__ == '__main__':
    main()
Buggy code:
n,k=map(int,input().split())
a=list(map(int,input().split()))
mod=10**9+7
srt=sorted(a)
b=[]
for i in range(n):
  b.append(srt.index(a[i]))
print(b)
ans=0
for j in range(n):
  ans+=((b[j]+b[j]*k)*k//2)%mod
res=0
for ii in range(n):
  for ij in range(ii+1):
    if a[ii]>a[ij]:
      res+=1
print((ans-res*k)%mod)

Fixed code:
n,k=map(int,input().split())
a=list(map(int,input().split()))
mod=10**9+7
srt=sorted(a)
b=[]
for i in range(n):
  b.append(srt.index(a[i]))
ans=0
for j in range(n):
  ans+=((b[j]+b[j]*k)*k//2)%mod
res=0
for ii in range(n):
  for ij in range(ii+1):
    if a[ii]>a[ij]:
      res+=1
print((ans-res*k)%mod)
Buggy code:
N,K=map(int,input().split())
 
a=list(map(int,input().split()))
tentou1=0
for i in range(N):
  for j in range(i+1,N):
    if(a[i]>a[j]):
      tentou1+=1
stentou=0
for i in range(N):
  for j in range(N):
    if(a[i]>a[j]):
      stentou+=1
answer=int(tentou1*K + stentou*K*(K-1)/2)
print(answer%1000000007)

Fixed code:
N,K=map(int,input().split())
 
a=list(map(int,input().split()))
tentou1=0
for i in range(N):
  for j in range(i+1,N):
    if(a[i]>a[j]):
      tentou1+=1
stentou=0
for i in range(N):
  for j in range(N):
    if(a[i]>a[j]):
      stentou+=1
answer=int(tentou1*K + stentou*K*(K-1)//int(2))
print(answer%1000000007)
Buggy code:
N,K=map(int,input().split())
 
a=list(map(int,input().split()))
tentou1=0
for i in range(N):
  for j in range(i+1,N):
    if a[i]>a[j]:
      tentou1+=1
stentou=0
for i in range(N):
  for j in range(N):
    if a[i]>a[j]:
      stentou+=1
answer= (tentou1*K) + (K*(K-1)/2*stentou)
print(answer%(10**9+7))



Fixed code:
N,K=map(int,input().split())
 
a=list(map(int,input().split()))
tentou1=0
for i in range(N):
  for j in range(i+1,N):
    if a[i]>a[j]:
      tentou1+=1
stentou=0
for i in range(N):
  for j in range(N):
    if a[i]>a[j]:
      stentou+=1
answer= (tentou1*K) + (K*(K-1)//2*stentou)
print(answer%(10**9+7))
Buggy code:

N, K = map(int, input().split())
As = list(map(int, input().split()))
MOD = 10**9 + 7


K_1 = K*(1+K) % MOD
K_1 /= 2
K_2 = (K_1 - K) % MOD

res_next = [0 for i in range(N)]
for i in range(N):
    a = As[i]
    for j in range(i+1, N):
        if a > As[j]:
            res_next[i] += 1

res_prev = [0 for i in range(N)]

for i in range(N):
    a = As[i]
    for j in range(i):
        if a > As[j]:
            res_prev[i] += 1

ans = 0
for i in range(N):
    ans += (res_next[i] * K_1) % MOD
    ans += (res_prev[i] * K_2) % MOD
    ans %= MOD

print(ans)

Fixed code:
from decimal import *
N, K = map(int, input().split())
As = list(map(int, input().split()))
MOD = 10**9 + 7


K_1 = Decimal(K)*Decimal(1+K) / Decimal(2)
K_2 = (K_1 - Decimal(K)) % Decimal(MOD)
K_1 %= Decimal(MOD)

res_next = [0 for i in range(N)]
for i in range(N):
    a = As[i]
    for j in range(i+1, N):
        if a > As[j]:
            res_next[i] += 1

res_prev = [0 for i in range(N)]

for i in range(N):
    a = As[i]
    for j in range(i):
        if a > As[j]:
            res_prev[i] += 1

ans = Decimal(0)

for i in range(N):
    ans += (Decimal(res_next[i]) * K_1) % Decimal(MOD)
    ans %= Decimal(MOD)
    ans += (Decimal(res_prev[i]) * K_2) % Decimal(MOD)
    ans %= Decimal(MOD)

print(int(ans))
Buggy code:
import numpy as np

n, k = map(int, input().split())
a = list(map(int, input().split()))

a = np.array(a)
c = np.sort(a)[::-1]
MOD = 10 ** 9 + 7
count = 1
ans = 0
for i in a:
    b = a[count:n]
    d = len(c[c < i])
    e = len(b[b < i])
    ans += (e * k + k*(k-1)/2 * d)
    ans %= MOD
    count += 1


print(int(ans))

Fixed code:
import numpy as np

n, k = map(int, input().split())
a = list(map(int, input().split()))

a = np.array(a)
c = np.sort(a)[::-1]
MOD = 10 ** 9 + 7
count = 1
ans = 0
d = 0
e = 0
for i in a:
    b = a[count:n]
    d += len(c[c < i])
    e += len(b[b < i])
    count += 1

ans = (e * k + k*(k-1)//2 * d)
ans %= MOD

print(int(ans))
Buggy code:
data = input().split(" ")
n = int(data[0])
k = int(data[1]) 
a = list(map(int, input().split(" ")))
print(a)
left = 0
right = 0
for i in range(0, n):
	for j in range(0, i):
		if a[j] < a[i]:
			left += 1
	for j in range(i+1, n):
		if a[j] < a[i]:
			right += 1

rt = ((k + 1) * k // 2) % 1000000007
lt = ((k - 1) * k // 2) % 1000000007
ans = (right * rt + left * lt) % 1000000007
print(ans)

Fixed code:
data = input().split(" ")
n = int(data[0])
k = int(data[1]) 
a = list(map(int, input().split(" ")))
left = 0
right = 0
for i in range(0, n):
	for j in range(0, i):
		if a[j] < a[i]:
			left += 1
	for j in range(i+1, n):
		if a[j] < a[i]:
			right += 1

rt = ((k + 1) * k // 2) % 1000000007
lt = ((k - 1) * k // 2) % 1000000007
ans = (right * rt + left * lt) % 1000000007
print(ans)
Buggy code:
N, K = map(int, input().split())
A = [int(x) for x in input().split()]
ans_base = 0
ans_base_rev = 0
ans = 0
big = (10**9)+7
for i in range(N-1):
    for k in range(i + 1, N):
        if A[i] > A[k]:
            ans_base += 1
        if A[i] < A[k]:
            ans_base_rev += 1
#ans_base %= big
val_p = (K * (K + 1)) / 2
val_m = (K * (K - 1)) / 2
#val_m %= big
#val_p %= big
ans = ans_base * val_p+ans_base_rev * val_m
ans %= big
print(int(ans))


Fixed code:
N, K = map(int, input().split())
A = [int(x) for x in input().split()]
ans_base = 0
ans_base_rev = 0
big = (10**9)+7
for i in range(N-1):
    for k in range(i + 1, N):
        if A[i] > A[k]:
            ans_base += 1
        elif A[i] < A[k]:
            ans_base_rev += 1

#ans_base = ans_base % big
#ans_base_rev = ans_base_rev % big
val_p = (K * (K + 1)) // 2
val_m = (K * (K - 1)) // 2
#val_m = val_m % big
#val_p = val_p % big
ans = ans_base * val_p + ans_base_rev * val_m
ans = ans % big
print(int(ans))
Buggy code:
n, k = map(int, input().split())
A = list(map(int, input().split()))
mod = 10**9 + 7
length = len(A)
R_down = [0]*length
L_down = [0]*length

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

    R_down[i] = count

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

    L_down[i] = count

R = sum(R_down)*k*(k+1)/2 % mod
L = sum(L_down)*(k-1)*k/2 % mod
ans = (R + L) % mod
print(int(ans))


Fixed code:
n, k = map(int, input().split())
A = list(map(int, input().split()))
mod = 10**9 + 7
length = len(A)
R_down = [0]*length
L_down = [0]*length

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

    R_down[i] = count

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

    L_down[i] = count

R = sum(R_down)*k*(k+1)//2
L = sum(L_down)*(k-1)*k//2
ans = (R + L) % mod
print(int(ans))
Buggy code:
I=lambda:input()
L=lambda:list(map(int,I().split()))
n,k=L()
a=L()
m=10**9+7
kk=(k*(k+1)//2)%m
k=(k*(k-1)//2)%m
from bisect import bisect_right
x=0
for i in range(n):
  if i!=0:
    l=a[:i]
    l.sort()
    b=bisect_right(l,a[i])
    x+=(b*k)%m
  if i!=n-1:
    l=a[i+1:]
    l.sort()
    b=bisect_right(l,a[i])
    x+=(b*kk)%m
  x%=m
print(x)

Fixed code:
I=lambda:input()
L=lambda:list(map(int,I().split()))
n,k=L()
a=L()
m=10**9+7
kk=(k*(k+1)//2)%m
k=(k*(k-1)//2)%m
from bisect import bisect_left
x=0
for i in range(n):
  if i!=0:
    l=a[:i]
    l.sort()
    b=bisect_left(l,a[i])
    x+=(b*k)%m
  if i!=n-1:
    l=a[i+1:]
    l.sort()
    b=bisect_left(l,a[i])
    x+=(b*kk)%m
  x%=m
print(x)
Buggy code:
N , K = map(int, input().split())
A = list(map(int, input().split()))

whole = 0
right = 0
whole_list = []
right_list = []

for i in range(N):
    for j in range(N):
        if A[i] > A[j]:
            whole += 1
            if i < j:
                right += 1
    else:
        whole_list.append(whole)
        whole = 0
        right_list.append(right)
        right = 0

mod = 10 ** 9 + 7
ans = sum(right_list) * K % mod
ans += sum(whole_list) * (K - 1) * K * 0.5 % mod

print(ans)

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

whole = 0
right = 0
whole_list = []
right_list = []

for i in range(N):
    for j in range(N):
        if A[i] > A[j]:
            whole += 1
            if i < j:
                right += 1
    else:
        whole_list.append(whole)
        whole = 0
        right_list.append(right)
        right = 0

mod = 10 ** 9 + 7
ans = sum(right_list) * K
ans += sum(whole_list) * (K - 1) * K // 2

print(ans % mod)
Buggy code:
n, k = map(int, input().split())
a_lst = list(map(int, input().split()))
m = 10**9+7
p, q = 0, 0

for i in range(n):
    for j in range(i + 1, n):
        if a_lst[i] > a_lst[j]:
            p += 1

for i in range(n):
    for j in range(n):
        if not i == j:
            if a_lst[i] > a_lst[j]:
                q += 1

print(int((p*k + (q*k*(k-1) / 2)) % m))

Fixed code:
n, k = map(int, input().split())
a = list(map(int, input().split()))
m = 10**9+7
p, q = 0, 0

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

print((p*k + (q*k*(k-1) // 2)) % m)
Buggy code:
import numpy as np
n, k = map(int, input().split())
a = list(map(int, input().split()))
num = [[0, 0] for _ in range(n)]
for i in range(n):
    for j in range(n):
        if a[i] > a[j]:
            num[i][1] += 1
        if (i < j) and (a[i] > a[j]):
            num[i][0] += 1
num_np = np.array(num)
if k % 2 == 0:
    ks = ((k / 2) % (10*9 + 7))
ks = k * (k - 1) / 2 % (10*9 + 7)
sum_left = sum(num_np[:,0])
sum_right = sum(num_np[:,1])
output = (sum_left * k) % (10*9 + 7) + (sum_right * int(ks)) % (10*9 + 7)
print(output % (10*9 + 7))

Fixed code:
import numpy as np
n, k = map(int, input().split())
a = list(map(int, input().split()))
num = [[0, 0] for _ in range(n)]
for i in range(n):
    for j in range(n):
        if a[i] > a[j]:
            num[i][1] += 1
        if (i < j) and (a[i] > a[j]):
            num[i][0] += 1
num_np = np.array(num)
ks = k * (k - 1) // 2 % 1000000007
sum_left = sum(num_np[:,0])
sum_right = sum(num_np[:,1])
output = (sum_left * k) % 1000000007 + (sum_right * ks) % 1000000007
print(output % 1000000007)
Buggy code:
import numpy as np
n, k = map(int, input().split())
a = list(map(int, input().split()))
x, y = 0, 0
for i in range(n):
    for j in range(n):
        if a[i] > a[j]:
            x += 1
        if (i < j) and (a[i] > a[j]):
            y += 1
output = (x * k) % 1000000007 + (y * k * (k - 1) // 2) % 1000000007
print(output % 1000000007)

Fixed code:
import numpy as np
n, k = map(int, input().split())
a = list(map(int, input().split()))
x, y = 0, 0
for i in range(n):
    for j in range(n):
        if a[i] > a[j]:
            x += 1
        if (i < j) and (a[i] > a[j]):
            y += 1

output = ((x * k * (k - 1) // 2) + (y * k)) % 1000000007
print(output)
Buggy code:
N,K = map(int,input().split())
A = list(map(int,input().split()))
mod = 1000000007
ans = 0
list = [[0,0] for i in range(N)]
I = 0
J = 0
for i in range(N):
  for j in range(i):
    if A[j] < A[i]:
      list[i][0] += 1
      I += 1
      J += 1
  for k in range(i+1,N):
    if A[k] < A[i]:
      list[i][1] += 1
      J += 1
print(list)
for i in range(N):
  ans += int(K*list[i][1] + K*(K-1)*(list[i][0]+list[i][1])//2)                      
print(ans%mod)
                                  
         


Fixed code:
N,K = map(int,input().split())
A = list(map(int,input().split()))
mod = 1000000007
ans = 0
list = [[0,0] for i in range(N)]
I = 0
J = 0
for i in range(N):
  for j in range(i):
    if A[j] < A[i]:
      list[i][0] += 1
      I += 1
      J += 1
  for k in range(i+1,N):
    if A[k] < A[i]:
      list[i][1] += 1
      J += 1
#print(list)
for i in range(N):
  ans += int(K*list[i][1] + K*(K-1)*(list[i][0]+list[i][1])//2)                      
print(ans%mod)
Buggy code:
MOD = 10**9+7
n, k, *a = map(int, open(0).read().split())
s = 0
for i in range(n):
  s += sum(j>i and a[j]<a[i] for j in range(n))
t = 0
for i in range(n):
  t += sum(a[j]<a[i] for j in range(n))
print((s*n + k*~-k//2*t) % MOD)

Fixed code:
MOD = 10**9+7
n, k, *a = map(int, open(0).read().split())
s = t = 0
for i in range(n):
  s += sum(j>i and a[j]<a[i] for j in range(n))
  t += sum(a[j]<a[i] for j in range(n))
print((s*k + k*~-k//2*t) % MOD)
Buggy code:
n,k=map(int,input().split())
List=list(map(int,input().split()))


li = []

for i in range(n):
    count=0
    for j in range(n):
        if List[i]>List[j]:
            count += 1
    li.append(count)

count2=0

for i in range(1,n):
    for j in range(i+1,n+1):
        if int(List[i-1]) > int(List[j-1]):
            count2 += 1

counted = k*count2 + sum(li)*k*(k-1)/2

ans = counted % 1000000007
print(ans)

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


li = []

for i in range(n):
    count=0
    for j in range(n):
        if List[i]>List[j]:
            count += 1
    li.append(count)

count2=0

for i in range(1,n):
    for j in range(i+1,n+1):
        if int(List[i-1]) > int(List[j-1]):
            count2 += 1

counted = k*count2 + (sum(li))*k*(k-1)//2

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

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

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


diff = []
npA = np.array(A)
lenA = len(A)
for a in A:
    temp = list(np.array([a for i in range(lenA)]) - npA)
    diff.append(temp)

D = np.array(diff)

upD = np.triu(D,k=1)

upC = np.count_nonzero(upD>0)

ans = int(K*(2*upC) - dwC)
print(ans%(1000000007))

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


diff = []
npA = np.array(A)
lenA = len(A)
for a in A:
    temp = list(np.array([a for i in range(lenA)]) - npA)
    diff.append(temp)

D = np.array(diff)

upD = np.triu(D,k=1)

upC = np.count_nonzero(upD>0)
dwC = np.count_nonzero(upD<0)

ans = (K*(K+1)//2)*upC + ((K-1)*K//2)*dwC
print(ans%(1000000007))
Buggy code:
N, K = map(int, input().split())
A = list(map(int, input().split()))

AA = A + A

AA_re = list(reversed(AA))
A_re = list(reversed(A))

ans0 = 0
for i in range(N):
    a = A_re[i]
    for j in range(i + 1, N):
        b = A_re[j]
        if a < b:
            ans0 += 1


ans1 = 0
for i in range(N):
    a = AA_re[i]
    for j in range(i + 1, 2 * N):
        b = AA_re[j]
        if a < b:
            ans1 += 1


sa = ans1 - ans0
m = 10 ** 9 + 7


matu = ans0 + sa * (K - 1)
c = ans0 + matu

ans = c / 2 * K

if K == 0:
    print(int(ans0))
    exit()

ans = ans % m


print(int(ans))


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

AA = A + A

AA_re = list(reversed(AA))
A_re = list(reversed(A))

ans0 = 0
for i in range(N):
    a = A_re[i]
    for j in range(i + 1, N):
        b = A_re[j]
        if a < b:
            ans0 += 1


ans1 = 0
for i in range(N):
    a = AA_re[i]
    for j in range(i + 1, 2 * N):
        b = AA_re[j]
        if a < b:
            ans1 += 1


sa = ans1 - ans0
m = 10 ** 9 + 7


matu = ans0 + sa * (K - 1)
c = ans0 + matu

ans = c * K // 2

if K == 0:
    print(int(ans0))
    exit()

ans = ans % m


print(int(ans))
Buggy code:
n,k=map(int,input().split())
a=list(map(int,input().split()))
rcount=0
lcount=0
for i in range(n-1):
  for j in range(i+1,n):
    if a[i]>a[j]:
      rcount+=1

for i in range(n-1):
  for j in range(i+1,n):
    if a[i]<a[j]:
      lcount+=1

#print(count,countlast)
mod=10**9+7

print((k*(k+1)*rcount+k*(k-1)*lcountlast)/2%mod)



Fixed code:
n,k=map(int,input().split())
a=list(map(int,input().split()))
rcount=0
lcount=0
for i in range(n-1):
  for j in range(i+1,n):
    if a[i]>a[j]:
      rcount+=1

for i in range(n-1):
  for j in range(i+1,n):
    if a[i]<a[j]:
      lcount+=1

mod=10**9+7

print((k*(k+1)*rcount+k*(k-1)*lcount)//2%mod)
Buggy code:
n,k = map(int,input().split())
a = list(map(int,input().split()))
ans1 = 0
for i in range(n-1):
    for j in range(i+1,n):
        if a[i]>a[j]:
            ans1+=1
ans2 = n//2*(n-1) - ans1
print((ans1*((1+k)*k)//2+ans2*((1+(k-1))*(k-1))//2)%(10**9+7))

Fixed code:
n,k = map(int,input().split())
a = list(map(int,input().split()))
ans1 = 0
ans3 = 0
for i in range(n-1):
    for j in range(i+1,n):
        if a[i]>a[j]:
            ans1+=1
        elif a[i]==a[j]:
            ans3+=1
ans2 = (n*(n-1))//2 - ans1 - ans3
print((ans1*((1+k)*k)//2+ans2*(k*(k-1))//2)%(10**9+7))
Buggy code:
# -*- coding: utf-8 -*-
"""
Created on Sun May 31 11:25:07 2020

@author: NEC-PCuser
"""

N, K = map(int, input().split())

A = list(map(int, input().split()))

tentosu = 0


for i in range(0, N):
    a = 0
    d = 0
    for j in range(0, N):
        if (i == j):
            continue
        if (i < j and A[i] > A[j]):
            a += 1
        if (A[i] > A[j]):
            d += 1
    tentosu += a*K + (d*K) * (K-1) / 2
    
print(int(tentosu) % 1000000007)

Fixed code:
# -*- coding: utf-8 -*-
"""
Created on Sun May 31 11:25:07 2020

@author: NEC-PCuser
"""

N, K = map(int, input().split())

A = list(map(int, input().split()))

tentosu = 0

MOD = 1000000007

for i in range(0, N):
    a = 0
    d = 0
    """
    for j in range(0, N):
        if (i == j):
            continue
        if (i < j and A[i] > A[j]):
            a += 1
        if (A[i] > A[j]):
            d += 1
    """
    for j in range(0, N):
        if (A[i] > A[j]):
            d += 1
    for j in range(i, N):
        if (A[i] > A[j]):
            a += 1
    
    
    tentosu += a * K + (K - 1) * K * d // 2;
    
print(tentosu % MOD)
Buggy code:
n,k = map(int, input().split())

array = list(map(int, input().split()))
one_tento = 0
for i in range(n-1):
    for j in range(i+1,n):
        if array[i] > array[j]:
            one_tento += 1
two_tento = 0
for i in range(n):
    for j in range(n):
        if array[i] > array[j]:
            two_tento += 1

result =  two_tento*(k*(k-1))/2 + one_tento*k
print(int(result % (7 + (10 ** 9))))

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

one_tento = 0
for i in range(n-1):
    for j in range(i+1,n):
        if array[i] > array[j]:
            one_tento += 1
one_tento = int(one_tento)

two_tento = 0
for i in range(n):
    for j in range(n):
        if array[i] > array[j]:
            two_tento += 1
two_tento = int(two_tento)

result1 = (one_tento * k) % (7 + 10**9)
result2 = ((two_tento % (7 + 10**9)) * ((k * (k - 1) // 2) % (7 + 10**9))) % (7 + 10 **9)
result3 = (result1 + result2) % (7 + 10**9)
print(int(result3))