Python: Find the sum of the numbers among the first k with more than 2 digits
Sum of Numbers with 2+ Digits
Write a Python program to find the sum of the numbers in a given list among the first k with more than 2 digits.
Input: [4, 5, 17, 9, 14, 108, -9, 12, 76] Value of K: 4 Output: 0 Input: [4, 5, 17, 9, 14, 108, -9, 12, 76] Value of K: 6 Output: 108 Input: [114, 215, -117, 119, 14, 108, -9, 12, 76] Value of K: 5 Output: 331 Input: [114, 215, -117, 119, 14, 108, -9, 12, 76] Value of K: 1 Output: 114
Visual Presentation:
Sample Solution-1:
Python Code:
# Define a function named 'test' that takes a list of numbers 'nums' and an integer 'k' as input
def test(nums, k):
# Initialize a variable 's' to store the sum of numbers meeting the specified conditions
s = 0
# Iterate through the first 'k' elements in 'nums'
for i in range(len(nums))[:k]:
# Check if the absolute value of the current number has more than 2 digits
if len(str(abs(nums[i]))) > 2:
# Add the current number to the sum 's'
s = s + nums[i]
# Return the final sum 's'
return s
# Assign a specific list of numbers 'nums' to the variable
nums = [4, 5, 17, 9, 14, 108, -9, 12, 76]
# Print a message indicating the operation to be performed
print("Original list:", nums)
# Assign a specific value 'K' to the variable
K = 4
# Print a message indicating the value of 'K'
print("Value of K:", K)
# Print a message indicating the operation to be performed
print("Sum of the numbers among the first k with more than 2 digits:")
# Print the result of the test function applied to 'nums' and 'K'
print(test(nums, K))
# Assign another specific value 'K' to the variable
K = 6
# Print a message indicating the value of 'K'
print("\nOriginal list:", nums)
print("Value of K:", K)
# Print a message indicating the operation to be performed
print("Sum of the numbers among the first k with more than 2 digits:")
# Print the result of the test function applied to 'nums' and 'K'
print(test(nums, K))
# Assign another specific list of numbers 'nums' to the variable
nums = [114, 215, -117, 119, 14, 108, -9, 12, 76]
# Print a message indicating the operation to be performed
print("\nOriginal list:", nums)
# Assign another specific value 'K' to the variable
K = 5
# Print a message indicating the value of 'K'
print("Value of K:", K)
# Print a message indicating the operation to be performed
print("Sum of the numbers among the first k with more than 2 digits:")
# Print the result of the test function applied to 'nums' and 'K'
print(test(nums, K))
# Print an additional message indicating the original list
print("\nOriginal list:", nums)
# Assign another specific value 'K' to the variable
K = 1
# Print a message indicating the value of 'K'
print("Value of K:", K)
# Print a message indicating the operation to be performed
print("Sum of the numbers among the first k with more than 2 digits:")
# Print the result of the test function applied to 'nums' and 'K'
print(test(nums, K))
Sample Output:
Original list: [4, 5, 17, 9, 14, 108, -9, 12, 76] Value of K: 4 sum of the numbers among the first k with more than 2 digits 0 Original list: [4, 5, 17, 9, 14, 108, -9, 12, 76] Value of K: 6 sum of the numbers among the first k with more than 2 digits 108 Original list: [114, 215, -117, 119, 14, 108, -9, 12, 76] Value of K: 5 sum of the numbers among the first k with more than 2 digits 331 Original list: [114, 215, -117, 119, 14, 108, -9, 12, 76] Value of K: 1 sum of the numbers among the first k with more than 2 digits 114
Flowchart:
Sample Solution-2:
Python Code:
#License: https://bit.ly/3oLErEI
# Define a function named 'test' that takes a list of numbers 'nums' and an integer 'k' as input
def test(nums, k):
# Use a generator expression to sum numbers meeting the specified conditions in the first 'k' elements of 'nums'
return sum(n for n in nums[:k] if len(str(abs(n))) > 2)
# Assign a specific list of numbers 'nums' to the variable
nums = [4, 5, 17, 9, 14, 108, -9, 12, 76]
# Print a message indicating the operation to be performed
print("Original list:", nums)
# Assign a specific value 'K' to the variable
K = 4
# Print a message indicating the value of 'K'
print("Value of K:", K)
# Print a message indicating the operation to be performed
print("Sum of the numbers among the first k with more than 2 digits:")
# Print the result of the test function applied to 'nums' and 'K'
print(test(nums, K))
# Assign another specific value 'K' to the variable
K = 6
# Print a message indicating the value of 'K'
print("\nOriginal list:", nums)
print("Value of K:", K)
# Print a message indicating the operation to be performed
print("Sum of the numbers among the first k with more than 2 digits:")
# Print the result of the test function applied to 'nums' and 'K'
print(test(nums, K))
# Assign another specific list of numbers 'nums' to the variable
nums = [114, 215, -117, 119, 14, 108, -9, 12, 76]
# Print a message indicating the operation to be performed
print("\nOriginal list:", nums)
# Assign another specific value 'K' to the variable
K = 5
# Print a message indicating the value of 'K'
print("Value of K:", K)
# Print a message indicating the operation to be performed
print("Sum of the numbers among the first k with more than 2 digits:")
# Print the result of the test function applied to 'nums' and 'K'
print(test(nums, K))
# Print an additional message indicating the original list
print("\nOriginal list:", nums)
# Assign another specific value 'K' to the variable
K = 1
# Print a message indicating the value of 'K'
print("Value of K:", K)
# Print a message indicating the operation to be performed
print("Sum of the numbers among the first k with more than 2 digits:")
# Print the result of the test function applied to 'nums' and 'K'
print(test(nums, K))
Sample Output:
Original list: [4, 5, 17, 9, 14, 108, -9, 12, 76] Value of K: 4 sum of the numbers among the first k with more than 2 digits 0 Original list: [4, 5, 17, 9, 14, 108, -9, 12, 76] Value of K: 6 sum of the numbers among the first k with more than 2 digits 108 Original list: [114, 215, -117, 119, 14, 108, -9, 12, 76] Value of K: 5 sum of the numbers among the first k with more than 2 digits 331 Original list: [114, 215, -117, 119, 14, 108, -9, 12, 76] Value of K: 1 sum of the numbers among the first k with more than 2 digits 114
Flowchart:
For more Practice: Solve these Related Problems:
- Write a Python program to sum numbers among the first k elements of a list that have more than two digits.
- Write a Python program to iterate over the first k elements and sum those numbers whose absolute value has at least two digits.
- Write a Python program to use filtering to select numbers with two or more digits from the first k elements and compute their sum.
- Write a Python program to implement this selection without converting numbers to strings, using arithmetic operations instead.
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Python Code Editor :
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