Check for duplicates in an array in Java
This post will discuss how to check for duplicates in an array in Java.
Tag: Hashing
How to use std::pair as a key to std::map in C++
This post will discuss how to use std::pair as a key to std::map in C++. The std::pair in C++ binds together a pair of values of the same or different types, which can then be accessed through its first and second public members.
Use custom objects as keys to std::map in C++
This post will discuss how to use custom objects as keys to std::map in C++.
Use std::pair as key to std::unordered_map in C++
This post will discuss how to use std::pair as a key to std::unordered_map in C++.
Use struct as key to std::unordered_map in C++
This post will discuss how to use struct as key to std::unordered_map in C++.
Iterate Map in Java using keySet() method
This post will discuss various methods to iterate map using keySet() in Java.
Use std::pair as a key in std::set in C++
This post will discuss how to use std::pair as a key in a std::set in C++ with and without the comparison object.
Use an object as a key in std::set in C++
This post will discuss how to use an object as a key in a std::set in C++.
Use pair as a key in std::unordered_set in C++
This post will discuss how to use std::pair as a key in std::unordered_set in C++.
Iterate Map in Java using entrySet() method
This post will discuss various methods to iterate map in Java using the entrySet() method.
Find all duplicate elements in a limited range array
Find the duplicate numbers in an integer array of size n that contains elements between 1 and n, at least one of which repeats.
Count quadruplets with a zero sum
Given four integer arrays, count the number of quadruplets with a zero sum, including exactly one element from each array.