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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. void multiply(int nr[], int x, int product[]) {
  5. 	int carry = 0;
  6. 	int numDigits = nr[0];
  7. 	product[0] = 0;
  8. 	for (int i = 1; i <= numDigits; ++i) {
  9. 		int nrDigit = nr[i] * x + carry;
  10. 		product[i] = nrDigit % 10;
  11. 		carry = nrDigit / 10;
  12. 	}
  13. 	int currentNum = numDigits + 1;
  14. 	if (carry > 0) {
  15. 		product[currentNum] = carry % 10;
  16. 		carry /= 10;
  17. 		++currentNum;
  18. 	}
  19. }
  20.  
  21. int main() {
  22. 	int nr[] = {5, 1, 2, 2, 5, 8};
  23. 	int x = 3;
  24. 	int product[1000];
  25. 	multiply(nr, x, product);
  26. 	for (int i = product[0]; i >= 1; --i) {
  27. 		cout << product[i] << " ";
  28. 	}
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 5288KB
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https://ideone.com/4fDJE3
language:
C++14 (gcc 8.3)
created:
6 days ago
visibility:
public

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