Test cases failing

#1

2 test cases are failing.
one i can guess with 1 input and the key is not that number.

#2

lower_bound doesn’t work in this way

if element not found then lower_bound and upper_bound doesn’t return last index

The lower_bound() method in C++ is used to return an iterator pointing to the first element in the range [first, last) which has a value not less than val. This means that the function returns the index of the next smallest number just greater than or equal to that number.
see these outputs
image

Correct condition will be
// correct one


        if(arr[index]>m){

            cout<<"-1"<<endl;

        }else{

            cout<<index<<endl;

        }

i hope this helps

1 Like
#3

Thank you so much! You can close this thread.

#4

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