如何在python中以这种形式输入？

Question

So, I want to take input of the following -

3
1 2
2 4
3 4

The first line contains an integer n. Each of the following n lines contains a pair of distinct space-separated integers. I want to store the inputs of first column in one array and the second column in another array. I came up with this code, can you tell me where I went wrong and how to do it?

n = int(input())
h = []
g = []
num = 0
for i in range(n):
    m = map(int,input().split("\n"))
    h.append(m)
for j in range(n): 
    ni = map(int,input().split("\n"))
    h.append(ni)

Answer 1

When you read using input you get the entire current line of input as a string, so each of your calls to input after the first will return '1 2' , '2 4' and finally '3 4' .

You need to split those strings on (space) and then convert the values to integers and append them to the h and g lists. For example:

for i in range(n):
    this_h, this_g = map(int, input().split(' '))
    h.append(this_h)
    g.append(this_g)
print(h)
print(g)

Output:

[1, 2, 3]
[2, 4, 4]