C++ Exercises: Counts the number of combinations where the sum of the digits equals to given number
Digit Combinations with Given Sum
Write a C++ program that reads n digits chosen from 0 to 9 and counts the number of combinations where the sum of the digits equals the given number. Do not use the same digits in a combination.
For example, the combinations where n = 2 and s = 5 are as follows:
0 + 5 = 5
1 + 4 = 5
3 + 2 = 5
Visual Presentation:

Sample Solution:
C++ Code :
Sample Output:
Sample Input: 2 5 Number of digits 2 and Sum = 5 Number of pairs: 3
Flowchart:

For more Practice: Solve these Related Problems:
- Write a C++ program to count all unique combinations of n digits (0-9) that sum to a given value without repetition.
- Write a C++ program that generates and prints all digit combinations where the sum of digits equals a specified value, ensuring no digit repeats.
- Write a C++ program to determine the number of unique combinations of digits that add up to a target sum using backtracking.
- Write a C++ program that accepts n and s, then finds and displays each combination of distinct digits that sum to s using recursion.
C++ Code Editor:
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