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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. void rev(stack<int>&x){
  4. 	int sz=x.size(),mytop,mybottom;
  5.     mytop=x.top();
  6.     x.pop();
  7.     int tmp[sz-1],i=0;
  8.     while(!x.empty()){
  9.         mybottom=x.top();
  10.         tmp[i++]=mybottom;
  11.         x.pop();
  12.         } 
  13.     stack<int> returnIt;
  14.     returnIt.push(mybottom);
  15.     for(i=0;i<=sz-3;i++){
  16.         returnIt.push(tmp[i]);
  17.         }
  18.     returnIt.push(mytop);
  19.     while(!returnIt.empty()){
  20.     	int tt=returnIt.top();
  21.     	x.push(tt);
  22.     	returnIt.pop();
  23.     }
  24. 	}
  25. int main() {
  26. 	// your code goes here
  27. 	stack<int>x;
  28. 	x.push(1);
  29. 	x.push(2);
  30. 	x.push(3);
  31. 	x.push(4);
  32. 	x.push(5);
  33. 	stack<int>y=x;
  34. 	cout<<"Before reversing : ";
  35. 	while(!y.empty()){
  36. 		int tt=y.top();
  37. 		cout<<tt;
  38. 		y.pop();
  39. 	}
  40.  
  41. 	rev(x);
  42. 	cout<<"\nAfter reversing : ";
  43. 	while(!x.empty()){
  44. 		cout<<x.top();
  45. 		x.pop();
  46. 	}
  47. 	return 0;
  48. }
Success #stdin #stdout 0s 3416KB
comments (?)
stdin 
Standard input is empty
stdout 
Before reversing : 54321
After reversing : 14325
https://ideone.com/fIBAaT
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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