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  1. #include <iostream>
  2. #include <string.h>
  3. using namespace std;
  4.  
  5. char arr[20] = {0};
  6. int top = -1;
  7.  
  8. void push(char a)
  9. {
  10. 	arr[++top] = a; 
  11. }
  12.  
  13. char pop()
  14. {
  15. 	if(top == -1) return '\0';
  16. 	return arr[top--];
  17. }
  18.  
  19. void insertatbottom(char op)
  20. {
  21. 	char op2 = pop();
  22. 	if(op2 =='\0') { push(op); return ;}
  23. 	insertatbottom(op);
  24. 	push(op2);
  25. }
  26.  
  27. void reverse()
  28. {
  29. 	char op = pop();
  30. 	if(op =='\0') return;
  31. 	reverse();
  32. 	insertatbottom(op);
  33. }
  34.  
  35. int main() {
  36. 	// your code goes here
  37. 	push('a');
  38. 	push('b');
  39. 	push('c');
  40. 	cout<<arr[2]<<arr[1]<<arr[0];
  41.     reverse();
  42. 	cout<<arr[2]<<arr[1]<<arr[0];
  43.     return 0;
  44. }
Success #stdin #stdout 0s 16064KB
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stdin
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Standard input is empty
stdout
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cbaabc
https://ideone.com/1RQZ5r
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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