Check whether a given integer is prime in C using optimized trial division with square root boundaries in standard C11.
When this program is compiled and executed, the terminal outputs:
1 is NOT a Prime number 2 is a Prime number 13 is a Prime number 25 is NOT a Prime number 29 is a Prime number 97 is a Prime number 100 is NOT a Prime number
Practice in our high-performance cloud container IDE with multi-file support, interactive terminal STDIN, real-time memory visualizer, and structured lessons.
Reverse a null-terminated character array (string) in place using two raw memory pointers without allocating secondary buffers.
Demonstrates safe dynamic heap memory allocation in C, resizing buffers with realloc, and avoiding memory leaks with free().
The Fibonacci sequence is a series where each number is the sum of the two preceding ones, starting from 0 and 1. Here we implement iterative generation and generator streaming.