Solved C programming exercises (step by step)

Collection of C exercises focused on real practice: pointers, data structures, dynamic memory, files, and more.

What you will find

Practical exercises

Real class, interview, and project problems with code you can compile and run immediately.

Step-by-step explanation

Each solution walks from statement to implementation so you understand the reasoning, not just the output.

Progressive difficulty

Every exercise includes a difficulty badge so you can move from fundamentals to advanced topics.

If you want the full path with 100 structured exercises by difficulty, see Programming in C in 100 Solved Exercises.

2026

Shell sort in C: solved exercise step by stepMedium 2 min 03-01

Circular linked list in C: solved insert and traversal exerciseAdvanced 2 min 02-28

Merge sort in C: solved exercise with divide and conquerAdvanced 4 min 02-26

Binary tree in C: solved insertion and search exerciseAdvanced 2 min 02-24

fread and fwrite in C: solved binary file exerciseAdvanced 2 min 02-22

Struct in C: solved exercise with arrays of structsEasy 2 min 02-20

Strings in C: solved exercises with strlen, strcpy, and strcmpMedium 2 min 02-19

Pointer to pointer in C: solved exercise with reference updateAdvanced 2 min 02-18

Malloc and free in C: solved dynamic memory exerciseAdvanced 2 min 02-17

Quicksort in C: solved exercise with Lomuto partitionAdvanced 2 min 02-15

Bubble sort in C: solved exercise step by stepMedium 2 min 02-14

Binary search in C: solved exercise on sorted arraysMedium 2 min 02-13

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