I wrote this program in my python IDLE and after executing this it gave me a weird output.
t = int(input())
for i in range(t):
n = int(input())
rev = 0
while(n > 0):
a = n % 10
rev = rev * 10 + a
n = n / 10
print(rev)
Input:
4
12345
24658
2756
76
Output:
inf
inf
inf
inf
This is a code for the problem FLOW007
t = int(input())
for i in range(t):
n = int(input())
rev = 0
while(n > 0):
a = n % 10
rev = rev * 10 + a
n = n / / 10
print(rev)
I know why my submission got WA. But I can’t figure out that why my code gives me these weird output. What is the meaning of inf. Does it mean infinity?
The // is integer division operator in python and / is floating point division.
1 Like
ok. But why the output for / is inf? what does inf means? Please explain.
I feel you get info because of using % of a floating point - which should have issued an exception ideally.
1 Like
The inf comes because the integer n never reaches 0 as you are dividing by / and non //. So it continues. If you print n inside loop, you can observe the output-
t = int(input())
for i in range(t):
n = int(input())
rev = 0
while(n > 0):
a = n % 10
rev = rev * 10 + a
n = n / 10
print(n)
#print(rev)
Output
12.3
2 Likes
s_king
March 9, 2020, 1:17pm
6
Because / is floating point division in python and after the number being a float, using % operator on it will throw some kind of error.
1 Like
oh, I see. That’s a great help. thanks.
1 Like
