Table of Contents
In this program, we will learn to write Python code to find all the pairs in an array whose sum is equal to a given number.
For Example:
Input: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], target sum = 12
Output: [(2, 10), (3, 9), (4, 8), (5, 7)]
Program to find all pairs in Python
def find_pairs(arr, target_sum):
pairs = []
for i in range(len(arr)):
for j in range(i+1, len(arr)):
if arr[i] + arr[j] == target_sum:
pairs.append((arr[i], arr[j]))
return pairs
arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
target_sum = 12
result = find_pairs(arr, target_sum)
print("All pairs Whose sum is equal to ",target_sum," is: \n",result)Output:
All pairs Whose sum is equal to 12 is:
[(2, 10), (3, 9), (4, 8), (5, 7)]What did you think?
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