- 1. Input, print and numbers
- 2. Integer and float numbers
- 3. Conditions: if, then, else
- 4. For loop with range
- 5. Strings
- 6. While loop
- 7. Lists
- 8. Functions and recursion
- 9. Two-dimensional lists (arrays)
- 10. Sets
- 11. Dictionaries
- 12. JavaScript
- 13. HTML5 and CSS
- 14. Responsive Design with Bootstrap
- 15. jQuery
Ad place
Swap the columns
Statement
Given two positive integers \( m \) and \( n \), \( m \) lines of \( n \) elements, giving an \( m \times n \) matrix \( A \), followed by two non-negative integers \( i \) and \( j \) less than \( n \), swap columns \( i \) and \( j \) of \( A \) and print the result. Write a function swap_columns(a, i, j)
and call it to exchange the columns.
In all the problems input the data using input()
and print the result using print()
.
Statement
Given two positive integers \( m \) and \( n \), \( m \) lines of \( n \) elements, giving an \( m \times n \) matrix \( A \), followed by two non-negative integers \( i \) and \( j \) less than \( n \), swap columns \( i \) and \( j \) of \( A \) and print the result.Write a function swap_columns(a, i, j)
and call it to exchange the columns.
In all the problems input the data using input()
and print the result using print()
.