# NZEC error

Hello,

I have a problem which I would like to share. When I try to run my code for
the custom input, my code runs fine as shows the output exactly the same as
in the test case. However, when I run the code, it always shows me NZEC
error. Sometimes, my solutions have been accepted even when the code showed
NZEC error during the run. What exactly is the problem during the run?

I am attaching my code for the problem EID2 from LTIME75B. Please look into
it and tell me why isn’t my code getting accepted and about the general
NZEC error. Also, please tell me if there is any other email-id through
which I should write a mail like this. I had only this as the email-id from
Codechef and hence using this to convey. Please excuse me for that.

def interchange(matrix,i,j):
temp=matrix[i][0]
matrix[i][0]=matrix[j][0]
matrix[j][0]=temp

temp=matrix[i][1]
matrix[i][1]=matrix[j][1]
matrix[j][1]=temp

def check(matrix,i,j):
if (matrix[i][0]>=matrix[j][0]):
()
else:
interchange(matrix,i,j)

T=int(input())
for i in range(T):
(A1,A2,A3,C1,C2,C3)=list(map(int,input().split()))
matrix=[[A1,C1],[A2,C2],[A3,C3]]
check(matrix,0,1)
check(matrix,0,2)
check(matrix,1,2)
diff1=matrix[0][1]-matrix[1][1]
diff2=matrix[1][1]-matrix[2][1]
if ((diff1>=0)&(diff2>=0)):
print(‘FAIR’)
else:
print(‘NOT FAIR’)

If I understand you correctly: see e.g. this post.