Check whether the given number is a triangular number.Input Format:Accept an integer as inputOutput Format:Print the output as "Triangular Number" or "Not a Triangular Number"Constraints:1 <= N <= 10^9Sample Input 1:10Sample Output 1:Triangular NumberSample Input 2:16Sample Output 2:Not a Triangular Number
Question
Check whether the given number is a triangular number.Input Format:Accept an integer as inputOutput Format:Print the output as "Triangular Number" or "Not a Triangular Number"Constraints:1 <= N <= 10^9Sample Input 1:10Sample Output 1:Triangular NumberSample Input 2:16Sample Output 2:Not a Triangular Number
Solution
To check whether a given number is a triangular number or not, we need to follow these steps:
- Accept an integer as input.
- Calculate the value of the triangular number using the formula: T = (n * (n + 1)) / 2, where n is the input number.
- Check if the calculated value is equal to the input number.
- If the calculated value is equal to the input number, print "Triangular Number".
- If the calculated value is not equal to the input number, print "Not a Triangular Number".
Here is the code implementation in Python:
# Step 1: Accept an integer as input
n = int(input())
# Step 2: Calculate the value of the triangular number
triangular_number = (n * (n + 1)) / 2
# Step 3: Check if the calculated value is equal to the input number
if triangular_number == n:
# Step 4: Print "Triangular Number"
print("Triangular Number")
else:
# Step 5: Print "Not a Triangular Number"
print("Not a Triangular Number")
Please note that this code assumes the input is a valid integer within the given constraints.
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