Why is output coming wrong( its a target sum pairs question)

#1

#include

using namespace std;

int main()
{
int a[10001];
int n{0},key{0};
int* leftptr{0};
int* rightptr{0};
cin>>n;
for(int i=0;i<n;i++){
cin>>a[i];
}
cin>>key;
leftptr=a[0];
rightptr=&a[n-1];

while(leftptr < rightptr){
if((*leftptr) + (*rightptr)==key)
{
cout<<*leftptr<<" and "<<*rightptr<<endl;
leftptr++;
rightptr–;
}
else if((*leftptr)+(*rightptr)>key)
{
rightptr–;
}
else{
leftptr++;
}
}
}

#2

@Shubham_helloworld
Paste your code in coding blocks ide and provide me the link.
(pasting the code directly on discuss alters it somewhat).

#3

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