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- 2. Integer and float numbers
- 3. Conditions: if, then, else
- 4. For loop with range
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- 8. Functions and recursion
- 9. Two-dimensional lists (arrays)
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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().