Python_Easy_Beats_100%
IntuitionApproachUse pd.concat([],axis=0) , here axis=0 means adding the dataframe by rowComplexity
Time complexity:
o(1)
Space complexity:
o(1)Code
# Intuition
<!-- Describe your first thoughts on how to solve this problem. -->

# Approach
<!-- Describe your approach to solving the problem. -->
Use pd.concat([],axis=0) , here axis=0 means adding the dataframe by row
# Complexity
- Time complexity:
<!-- Add your time complexity here, e.g. $$O(n)$$ -->
o(1)
- Space complexity:
<!-- Add your space complexity here, e.g. $$O(n)$$ -->
o(1)
# Code
```pythondata []
import pandas as pd

def concatenateTables(df1: pd.DataFrame, df2: pd.DataFrame) -> pd.DataFrame:
    df3 = pd.concat([df1,df2],axis=0)
    return df3
```
['Pandas']