# [C++][Single Number II] short simple code

#1
``````int Solution::singleNumber(const vector<int> &A) {
vector<long> vec(32, 0);
long temp = 0;
for(int i=0; i<31; i++) {
for(auto it : A)
vec[i] += it&(1<<i);
if(vec[i]%3)
temp += 1<<i;
}
return temp;
}``````

#2

Hey! I tried this in python,

``````class Solution:
# @param A : tuple of integers
# @return an integer
def singleNumber(self, A):
A = list(A)
count = 0
temp = 0
for i in range(32):
for item in A:
count += item & (1<<i)
count = count%3
if(count%3):
temp += 1<<1
count = 0
return temp
``````

#3

Hi,

In your code block you have used
`temp += 1<<1`
`temp += 1<<i`

Otherwise, the code works perfectly fine.

``````class Solution:
# @param A : tuple of integers
# @return an integer
def singleNumber(self, A):
A = list(A)
temp = 0
for i in range(31):
count = 0
for item in A:
count += item & (1<<i)
if(count%3):
temp += 1<<i
return temp
``````

PS:
Markdown has a code view format.
Please use it, at-least, for python code.
Indentations are important. : )

Cheers.

#4

I am ashamed . Maybe I should get my eyes checked up. Sorry, I didn’t know there was a feature. I’m a newbie here. Changed it now.