count

[MOHIT0RMAYANK]

how to count the no. in an array or list?

[gpraghuram]

how to count the no. in an array or list?

I cant get you.
Can you explain a bit more clearly

Raghuram

[oler1s]

Are you asking how you would get the length of either of those data structures? Iterate through each node in whatever structure, adding to a counter. At the end, you have the length. In an array, it is just iteration through elements, and in a list, it is iteration through the nodes.

[mschenkelberg]

Any easier way to get the length of an array would be to do


int arr[100];
int size = sizeof(arr)/sizeof(int);

you can do this for any data type

hell, if you're using stl c++ data types like deque, list, or any others, it is simply
list foo;
foo.size();

or stl string type use length

cppreference.co m

[weaknessforcats]

or stl string type use length

std::string::le ngth() is deprecated. You are supposed to use std::string::si ze() like the other STL containers.