Print Floyd's Triangle

Print Floyd's triangle (consecutive numbers in a right-angled triangle).

PythonBeginner

Python

# Program to print Floyd's triangle

rows = int(input("Enter number of rows: "))

num = 1
for i in range(1, rows + 1):
    for j in range(i):
        print(num, end=" ")
        num += 1
    print()

Output

Enter number of rows: 4
1 
2 3 
4 5 6 
7 8 9 10

We keep a running counter and print increasing numbers row by row.

Print Inverted Pyramid Pattern

Print Pascal's Triangle