c step by step beginners guide in mastering c
ions. Basic File Operations Opening a file: ```c FILE fp = fopen("file.txt", "r"); ``` Reading: ```c fscanf(fp, "%d", &number); ``` Writing: ```c fprintf(fp, "Number: %d\n", number); ``` Closing: ```c fclose(fp); ``` Standard Input/Output `printf()` for output `scanf()` for inp