Help... runtime error in my maxheap sort program Post: 302511238

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Top Forums Programming Help... runtime error in my maxheap sort program Post 302511238 by poonam.gaigole on Wednesday 6th of April 2011 09:27:07 AM

04-06-2011

Registered User

Error in my heapsort program.

:
#include<iostream>
using namespace std;
int a[100],size,heapsize;
void maxheap(int *a,int j)
{
int l,r,largest,temp;
l=2*j;
r=(2*j)+1;
for(j=0;j<size;++j)
{
if(l<=heapsize && a[l]>a[j])
largest=l;
else
largest=j;
if(r<=heapsize && a[r]>a[largest])
largest=r;
if(largest!=j)
{
a[temp]=a[j];
a[j]=a[largest];
a[largest]=a[temp];
maxheap(a,largest);
}
}
}
void buildmax(int *a)
{
heapsize=size;
int n=size/2;
for(int i=heapsize;i<n;--i)
maxheap(a,i);
}
void heapsort(int *a)
{
int tempo;
buildmax(a);
for(int i=size;i>0;--i)
{
tempo=a[0];
a[0]=a[i];
a[i]=tempo;
--heapsize;
maxheap(a,0);
}
}
int main()
{
cout<<"\nEnter the number of elements you want to enter in the array: ";
cin>>size;
cout<<"\nEnter an array of elements: ";
for(int i=0;i<size;++i)
cin>>a[i];
heapsort((int *)a[size]);
cout<<"\nThe corresponding array is: ";
for(int i=0;i<size;++i)
cout<<a[i];
buildmax((int *)a[size]);
cout<<"\nThe sorted array is: ";
for(int i=0;i<size;++i)
cout<<a[i];
return 0;
}

---------- Post updated at 06:57 PM ---------- Previous update was at 06:50 PM ----------

Why is my code tags not working when I'm trying to post a code?

Last edited by poonam.gaigole; 04-06-2011 at 10:25 AM..

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__gnu_profile::__trace_vector_to_list

__gnu_profile::__trace_vector_to_list(3)		     Library Functions Manual			  __gnu_profile::__trace_vector_to_list(3)

NAME

       __gnu_profile::__trace_vector_to_list -

SYNOPSIS

       Inherits __gnu_profile::__trace_base< __vector2list_info, __vector2list_stack_info >.

   Public Member Functions
       void __add_object (__object_t object, __vector2list_info__info)
       void __collect_warnings (__warning_vector_t &__warnings)
       void __destruct (const void *__obj)
       __vector2list_info * __find (const void *__obj)
       __vector2list_info * __get_object_info (__object_t __object)
       void __insert (__object_t __obj, __stack_t __stack)
       void __invalid_operator (const void *__obj)
       float __list_cost (std::size_t __shift, std::size_t __iterate, std::size_t __resize)
       void __opr_find (const void *__obj, std::size_t __size)
       void __opr_insert (const void *__obj, std::size_t __pos, std::size_t __num)
       void __opr_iterate (const void *__obj, std::size_t __num)
       void __resize (const void *__obj, std::size_t __from, std::size_t __to)
       void __retire_object (__object_t __object)
       float __vector_cost (std::size_t __shift, std::size_t __iterate, std::size_t __resize)
       void __write (FILE *__f)

   Protected Attributes
       const char * __id

Detailed Description
       Vector-to-list instrumentation producer.

       Definition at line 158 of file profiler_vector_to_list.h.

Author
       Generated automatically by Doxygen for libstdc++ from the source code.

libstdc++							  Tue Jun 10 2014			  __gnu_profile::__trace_vector_to_list(3)