Insertion Sort code compatible with Codeblocks IDE

InsertionSortCodeBlocks.cpp

#include<iostream>
using namespace std;
int main()
{
int size,arr[50],j=0,store;
cout<<"\n\nEnter the size of the Array";
cin>>size;
cout<<"\n\nEnter the array";
for(int i=1;i<=size;i++)
{
cin>>arr[i];
}
for(i=1;i<=size;i++)
{
store=arr[i];
j=i-1;
while(store<arr[j])
{
arr[j+1]=arr[j];
j--;
}
arr[j+1]=store;
}
for(i=1;i<=size;i++)
cout<<arr[i];
return 0;
}