How to use upper bounnd

#1

vector thefunciton(vector& A, vector& B) {

}

suppose this is function which i have to complete.
and in this fucntion i need to apply upper_bound.
as the upper bound return the address of the element in this case how i will use this?

#2

@gagz23
int a[]= {1 , 2 , 2 , 2 , 2 , 4 ,7};
int n = 7;

int id1 = lower_bound(a , a+n , 2)-a;
int id2 = upper_bound(a , a+n , 2)-a;
cout<<“first occurence of 2 is->”<<id1<<endl; // 1
cout<<“last occurence of 2 is->”<<id2<<endl; // 5
cout<<“Total occurences of 2 ->”<<(id2-id1)<<endl; // 4

int id3 = lower_bound(a , a+n , 3)-a;

int id4 = upper_bound(a , a+n , 3)-a;
cout<<“first occurence of 3 is->”<<id3<<endl; //5
cout<<“last occurence of 3 is->”<<id4<<endl; //5
cout<<“Total occurences of 2 ->”<<(id4-id3)<<endl; //0

#3

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#4

noo i know how to apply upper bound on array or vcetor… but iam asking

#5

vector thefunciton(vector& A, vector& B) { how i will use upper bound here }

#6

vector thefunciton(vector& A, vector& B) { how i will use upper bound here }

#7

hello @gagz23 just confirming how can you apply upper and lower bound in the function calls? right?

#8

yes when arr is passed as &arr

#9

see its the function call you cant do these things there.
you have to do thus inside the function or in main.
while passing the function call or in the function call you cannot perform any operation. it will give you an error.

#10

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