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  1. /*#include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main(){
  5. 	int n,i,x,y;
  6. 	scanf("%d%d%d",&n,&x,&y);
  7. 	int a[n+1],b[n+1],who[n+1],howmuch[n+1];
  8. 	for(i=1;i<=n;i++){
  9. 		scanf("%d",&a[i]);
  10. 		}
  11. 	for(i=1;i<=n;i++){
  12. 		scanf("%d",&b[i]);
  13. 		}
  14. 	int one=0,two=0;
  15. 	vector<pair<int,pair<int ,int> > >vp;
  16. 	for(i=1;i<=n;i++){
  17. 		//~ if(a[i]>=b[i]){
  18. 			//~ who[i]=1;
  19. 			//~ one++;
  20. 			//~ howmuch[i]=a[i];
  21. 			//~ vp.push_back(make_pair(a[i],1));
  22. 			//~ }
  23. 		//~ else {
  24. 			//~ who[i]=2;
  25. 			//~ two++;
  26. 			//~ howmuch[i]=b[i];
  27. 			//~ vp.push_back(make_pair(b[i],2));
  28. 			//~ }
  29. 		vp.push_back(make_pair(abs(a[i]-b[i]),make_pair(a[i],b[i])));
  30. 		}
  31. 	int ans=0;
  32. 	sort(vp,vp+sizeof(vp));
  33. 	for(i=1;i<=n;i++){
  34. 		if(vp[i].second.first > vp[i].second.second && x>0){
  35. 			x--;
  36. 			ans+=vp[i].second.first;
  37. 			}
  38. 		else if(y>0){
  39. 			y--;
  40. 			ans+=vp[i].second.second;
  41. 			}
  42. 		}
  43. 	printf("%d",ans);
  44. 	return 0;
  45. 	}
  46. */
  47.  
  48.  
  49. #include <bits/stdc++.h>
  50. using namespace std;
  51. #define maxi 1001
  52. class Stack
  53. {
  54. public:
  55.     int data[maxi];
  56.     int top,length;
  57.     Stack(int);
  58.     //~Stack();
  59.  
  60.     void push(int);
  61.     int pop();
  62.     int func();
  63.     void display();
  64.     void Swap(Stack &);
  65.     bool isEmpty();
  66.     bool isFull();
  67. };
  68.  
  69. Stack::Stack(int size)
  70. {
  71.     top=-1;
  72.     length=size;
  73. }
  74.  
  75. //Stack::~Stack(){
  76. //    delete [] data;
  77. //}
  78.  
  79. void Stack::push(int elem)
  80. {
  81.  
  82.     if(top==(length-1))     //If the top reaches to the maximum stack size
  83.     {
  84.         cout<<"\nCannot push "<<elem<<", Stack full"<<endl;
  85.         return;
  86.     }
  87.     else
  88.     {
  89.         //for(int i=0;i<length;i++){
  90.         //cin>>elem;
  91.         top++;
  92.         data[top]=elem;
  93.         //}
  94.     }
  95. }
  96. int Stack::pop()
  97. {
  98.     if(top==-1)
  99.     {
  100.         cout<<"Stack empty!";
  101.         return -1;
  102.     }
  103.     int ret=data[top];
  104.     top--;
  105.     return ret;
  106. }
  107.  
  108. void Stack::display()
  109. {
  110.     for(int i = 0; i <= top; i++)
  111.         cout<<data[i]<<" ";
  112.     cout<<endl;
  113. }
  114.  
  115. bool Stack::isEmpty()
  116. {
  117.     if(top==-1){return 1;}
  118.     else return 0;
  119. }
  120. bool Stack::isFull()
  121. {
  122.     if (top==length){return 1;}
  123.     else return 0;
  124. }
  125.  
  126. void Stack ::Swap(Stack &x){
  127. 	int sz=x.length,mytop,mybottom;
  128.     mytop=x.pop();
  129.     int tmp[sz-1],i=0;
  130.     while(!x.isEmpty()){
  131.         mybottom=x.pop();
  132.         tmp[i++]=mybottom;
  133.         }
  134.     Stack returnIt(sz);
  135.     returnIt.push(mybottom);
  136.     for(i=0;i<=sz-3;i++){
  137.         returnIt.push(tmp[i]);
  138.         }
  139.     returnIt.push(mytop);
  140.     x.length=sz;
  141.     x.top=-1;
  142.     while(!returnIt.isEmpty()){
  143.     	int tt=returnIt.pop();
  144.     	x.push(tt);
  145.     }
  146. 	}
  147. int main()
  148. {
  149. 	int len;
  150.     cout<<"Enter length of stack : ";
  151.     cin>>len;
  152.     Stack s1(len);
  153.     for(int i=0;i<len;i++){
  154. 		int element;
  155. 		cout<<"Enter element to push into stack : ";
  156. 		cin>>element;
  157. 		s1.push(element);
  158. 		}
  159.     //s1.push(1);
  160.     //s1.push(2);
  161.     //s1.push(3);
  162.     //s1.push(4);
  163.     //s1.push(5);
  164.     //s1.push(6);
  165.     //s1.push(7);
  166.     //s1.push(8);
  167.     //s1.push(9);
  168.     cout<<"\nStack before swapping : ";
  169.     s1.display();
  170.     s1.Swap(s1);
  171.     cout<<"\nStack after swapping : ";
  172.     s1.display();
  173. }
  174.  
Success #stdin #stdout 0s 3420KB
comments (?)
stdin 
4
1 2 3 4
stdout 
Enter length of stack : Enter element to push into stack : Enter element to push into stack : Enter element to push into stack : Enter element to push into stack : 
Stack before swapping : 1 2 3 4 

Stack after swapping : 4 2 3 1
https://ideone.com/DZUrsC
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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