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Competitive Programming-QnA

3 posts

Is competitive programming necessary for freshers?

Last Updated: 23 July 2025

Whether competitive programming is necessary for freshers depends on their career goals and the specific industry they plan to enter. Competitive programming, which involv...read more

Competitive Programming-QnA

Difference between concatenation of strings using (str += s) and (str = str + s)

Last Updated: 23 July 2025

A string is a collection of characters. For example, "GeeksforGeeks" is a string. C++ provides primitive data types to create a string. The string can also be initialized ...read more

Competitive Programming-QnA

Data Structures and Algorithms-QnA

How to avoid overflow in modular multiplication?

Last Updated: 23 July 2025

Consider below simple method to multiply two numbers.C++ #include iostreamusing namespace std;#define ll long long// Function to multiply two numbers modulo mod...read more

Modular Arithmetic

Competitive Programming-QnA

Data Structures and Algorithms-QnA