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  1. #include <iostream>
  2.  
  3. void printWithComma(int a) {
  4. 	char s[100];
  5. 	int i = 0;
  6. 	while (a > 0) {
  7. 		s[i++] = a % 10 + 48;
  8. 		a /= 10;
  9. 		if (!((i + 1) % 4))
  10. 			s[i++] = ',';
  11. 	}
  12. 	if (!(i % 4))
  13. 		i--;
  14. 	for (int j = i - 1; j >= 0; j--)
  15. 		std::cout << s[j];
  16. 	std::cout << '\n';
  17. }
  18.  
  19. int main() {
  20. 	printWithComma(1000000000);
  21. 	return 0;
  22. }
  23.  
Success #stdin #stdout 0s 4436KB
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stdin
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Standard input is empty
stdout
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1,000,000,000
https://ideone.com/7SHHfJ
Print with comma
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
secret

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