i need help with c

I need help with a online c exam on 28th JULY from 8-10 am. 1 coding question(mostly on structure and linked list). i can send practice problems if needed. Exam syllabus is attached below

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General Information · The exam will be posted on Tue, July 28, 8 AM (morning), and due the same day, Tue, July 28, at 10:30 AM (morning · The exam will be posted similar to a class project. You will write code in an a grace directory and submit as usual, except there is no late period submission. · We will pick the highest scoring submission for grading purposes. You can submit as many times as you want before the deadline, but keep in mind you have 8 release tokens. You can release test your code anytime. · All submissions must be done via the submit server (no e-mail). · The exam will be graded based on submit server tests (release and secret) and code inspection (style and requirements). · You can use class resources (lecture notes, lecture/lab examples, videos, etc.), but no other resources (e.g., code from the web). · Submissions will be checked with cheating detection software. · Do not wait until close to the deadline to submit your work. Network problems or submit server overloading are not valid excuses for missing submitting your work. Exam Structure · Short answer questions: This includes for example, multiple choice and true/false. · Code analysis questions: We will give a short segment of code and you may be asked to identify syntax and logical errors, generate code output, etc. · Code Writing: Write a program/code snippets to solve a given problem. You should be prepared to give a complete program/class, but we may also ask you to provide just a single method or a code fragment. We can use a C function that returns a letter in order to implement multiple choice questions. Other questions that cannot be processed by the submit server will be graded manually. Topics · Unix - You must be familiar with the following commands. · cp · ln · ls · cd · pwd · gcc · rm · mv · diff · rmdir · rm -r · scp · How to use grep to find patterns in a file · How to change file / directory permissions (e.g., chmod 700 file) · C Language · Preprocessor directives (e.g., #include, #define, #ifdef) · Expressions · Bitwise Operators. Some sample questions can be found at BitwiseOpWorksheet.pdf. · Conditional statements · Loops · Arrays (one and two dimensional arrays) · Strings - You are responsible for the following string functions: · strlen · strcpy · strcmp · strcat · strstr · memcpy · memmove The following cheat sheet will be provided in the exam String Library Functions Cheat Sheet. · Pointers (including function pointers) · enum · Structures · Unions · Functions · stdin, stderr, stdout · Linkage · Command line arguments · exit · err · perror · Dynamic Memory Allocation (malloc, realloc, free, etc.) · Data Representation · How characters, integers (positive and negative) and floats are represented. · What is the 2's complement representation of a number (representation of signed integers) given a particular number of bits. · What is the range of negative and positive values you can represent using 2's complement and a particular number of bits. · Understand the imprecision associated with real numbers. · Why casting is not the same as getting an address, casting to a type and dereferencing. The casting.c example in Data-Rep-Code provides an example. · You don't need to know how to generate the binary representation for a float value using the IEEE 754 standard; just understand that some bits represent the mantissa, some bits the exponent, and the left most bit the sign. · Reading and writing from files. The cheat sheet Standard IO Cheat Sheet will be provided in the exam. · Memory maps - Please use the style presented by the MemoryMapExample.pdf example. Previous exam solutions consider as correct using a pointer to the first array element in order to describe an array; that is not correct. See the diagram we have provided. · Linked Lists (both singly and doubly linked lists) · Recursion · Makefiles - You need to know how to define makefiles without using implicit rules. The following is an example of the kind of makefile we expect you to write in the exam: makefile_example. You may not use wildcards (except *). · Big Endian vs. Little Endian · gdb · Valgrind · splint · -fmudflapth -lmudflap flags for debugging (see grace file info/gcc2_alias_with_special_flags.txt).

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