https://github.com/rdbo/universal-combinations

Universal Combinations Algorithm in C
https://github.com/rdbo/universal-combinations

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Universal Combinations Algorithm in C

• Host: GitHub
• URL: https://github.com/rdbo/universal-combinations
• Owner: rdbo
• Created: 2021-11-11T00:00:18.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2021-11-11T00:02:34.000Z (over 4 years ago)
• Last Synced: 2025-07-21T05:42:40.835Z (about 1 year ago)
• Language: C
• Size: 1.95 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Universal Combinations Algorithm in C

```c

int main()

{

	char carr[] = { 'a', 'b', 'c', 'd' };

	int iarr[] = { 1, 2, 3, 4, 5, 6, 7 };

	size_t n;

	n = 2;

	combinations(carr, ITEMSIZE(carr), ARRLEN(carr), n, callback_char, (void *)&n);

	printf("--------------------\n");

	n = 6;

	combinations(iarr, ITEMSIZE(iarr), ARRLEN(iarr), n, callback_int, (void *)&n);

	return 0;

}

```

Result:

```

{ 'a' 'b' }

{ 'a' 'c' }

{ 'a' 'd' }

{ 'b' 'c' }

{ 'b' 'd' }

{ 'c' 'd' }

--------------------

{ 1 2 3 4 5 6 }

{ 1 2 3 4 5 7 }

{ 1 2 3 4 6 7 }

{ 1 2 3 5 6 7 }

{ 1 2 4 5 6 7 }

{ 1 3 4 5 6 7 }

{ 2 3 4 5 6 7 }

```