So I have this piece of code to access number pairs from a file and sort them in respective arrays:
Input: 10 6 5
Content of fInp.txt:
3 7
4 5
2 7
9 10
1 3
1 8
4 2
7 10
5 3
2 5
8 6
The code:
[m,n,p] = [int(i) for i in input().split()]
with open('fInp.txt') as file:
v = file.readlines()
def inpint(h):
ar = []
for i in v:
q = h
j = [int(j) for j in i.split()]
if j[0] > j[1]:
j = [j[1],j[0]]
ar.append(j)
q+=1
if q == h:
break
v = v[h:]
ar.sort(reverse=False,key=lambda k: k[0])
return ar
a,b = map(inpint,(n,p))
print(a,b)
This piece of code does not invoke any exceptions, however it's logically incorrect since I want the 2 lists to take up diff number pairs. And so I added this line right above 'return' to make the function not iterate the first number pairs twice:
v = v[h:]
The code snippet now provokes an UnboundLocalError. How did this happen and how do I fix it?
