Upper bound and lower bound prob

#1

-1 not print in output
#include <bits/stdc++.h>
using namespace std;
int upper_bound(int a[],int n,int key)
{
int s=0;
int e=n-1;
int ans=-1;

  while(s<=e)
  {
      int mid=s+e/2;
  
  if(a[mid]==key)
  {
      ans=mid;
      e=mid-1;

  }
  else if (a[mid]>key)
  {
      e=mid-1;

  }
     else{
     
     s=mid+1;
     }

}
return ans;

}

int lower_bound(int a[],int n,int key)
{
int s=0;
int e=n-1;
int ans=-1;

  while(s<=e)
  {
      int mid=(s+e)/2;
  
  if(a[mid]==key)
  {
      ans=mid;
      s=mid+1;

  }
  else if(a[mid]>key)
  {
      e=mid-1;

  }
     else{
     
     s=mid+1;
     }

}
return ans;

}
int main()
{
int n;
cin>>n;
int a[n];
for(int i=0;i<n;i++)
{
cin>>a[i];
}
int t;
cin>>t;
while(t–)
{
int key;
cin>>key;

int ans = upper_bound(a,n,key);
cout<<ans<<" ";
ans= lower_bound(a,n,key);
cout<<ans;
cout<<endl;
ans=0;
}
return 0;

}

#2

hey @afzalkhan.lma, please share the code saved in coding blocks ide.

#3
#4

hey @afzalkhan.lma, there are some small mistakes in your code, I have made changes to your code.You can check them here. https://ide.codingblocks.com/s/104850

#5

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