Here we keep track of C problems in a category based manner. Any sort of contribution to the list is very much appriciated.
Contents:
- Introduction
- Algorithm
- Calculation and IO
- Decision making
- Loop and Array
- Function
- Pointer
- Struct
- File
| Description | Difficulty | Occurrences | Link |
|---|---|---|---|
| Description | Difficulty | Occurrences | Link |
|---|---|---|---|
| Greatest Common Divisor | 4 | Fall2016-hw1, Fall2019-hw1 |
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| Prime Number Check | 3 | Fall2016-hw1 |
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| Double Zeros | 5 | Fall2016-hw1, Fall2019-hw1 |
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| Number System Conversion | 4 | Fall2016-hw1 |
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| Random Generator in Specified Range | 5 | Fall2016-hw1 |
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| Sum Multi-digit Numbers by Single Digits | 4 | Fall2016-hw1 |
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| Find Poisonous Mug | 8 | Fall2016-hw1, Fall2019-hw1, Fall2020-hw2 |
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| Cash Greedy | 5 | Fall2018-hw5 |
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| Reverse digits | 4 | Fall2019-hw1 |
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| Least Common Multiple of Series of n | 4 | Fall2019-hw1 |
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| Palindrome Multiple of 2-digit Numbers | 4 | Fall2019-hw1 |
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| Sum & Squared Sum of Series of n | 4 | Fall2019-hw1 |
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| Sieve of Eratosthenes | 5 | Fall2019-hw1 |
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| Path Number from top-left to bottom-right | 7 | Fall2019-hw1 |
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| Numbers Divisible By All Their Digits | 6 | Spring2020-hw1 |
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| Maximum Possible Number on Panels | 6 | Spring2020-hw1 |
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| Numbers are Less than Sum of Their Divisors | 5 | Spring2020-hw1 |
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| Zero Maker Calculator | 5 | Spring2020-hw1 |
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| Numbers are Equal with Sum of Power 5 of Their digits | 6 | Spring2020-hw1 |
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| Greatest Pandigital Prime Number | 6 | Spring2020-hw1 |
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| Least Multiple of n with Reminder in Specified Range | 4 | Fall2020-hw2 |
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| Prime Numbers in Series of n | 4 | Fall2020-hw2 |
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| Voting System | 5 | Fall2020-hw2 |
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| Irregular Triangular Triplets | 6 | Fall2020-hw2 |
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| Prime Numbers with Just Digit '1' in Binary | 5 | Fall2020-hw2 |
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| Description | Difficulty | Occurrences | Link |
|---|---|---|---|
| Weighted Average Scores | 2 | Fall2015-hw3 , Fall2016-hw3 |
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| Time Conflict | 6 | Fall2016-hw2 |
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| Time Conflict 2 | 6 | Fall2020-hw3 |
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| Print Random Even Numbers | 4 | Fall2019-hw2 |
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| Print Random Even Numbers 2 | 4 | Fall2016-hw2 |
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| Print Random Even Numbers 3 | 4 | Fall2017-hw2 , Fall2018-hw2 |
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| Perimeter, Area, Angles Of Diamond | 4 | Fall2016-hw2 |
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| Calculate Geometric Features Of Square | 5 | Fall2017-hw2 |
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| Calculate Mathematic Formula | 3 | Spring2019-hw2 |
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| Calculate Mathematic Formula 2 | 3 | Fall2017-hw4 |
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| Calculate Mathematic Formula 3 | 3 | Fall2017-hw2 |
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| Calculate Mathematic Formula 4 | 3 | Fall2016-hw2 |
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| Calculate Mathematic Formula 5 | 3 | Fall2018-hw2 , Fall2019-hw2 |
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| Calculate Mathematic Formula 6 | 3 | Spring2020-hw2 |
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| Calculate Mathematic Formula 7 | 3 | Fall2020-hw2 |
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| Passenger Waiting For Next Train Arrival | 6 | Spring2019-hw2 |
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| Parallelogram Area | 4 | Spring2019-hw2 |
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| Create Numbers By Operators | 4 | Fall2017-hw2 , Spring2019-hw2 |
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| Game Table | 1 | Spring2019-hw2 |
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| Postage Cost | 5 | Fall2018-hw2 |
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| Perimeter , Area Of Trapezium | 5 | Fall2018-hw2 |
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| Create Triangle With Random Vertices | 5 | Fall2019-hw2 |
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| Calculate BMI | 3 | Spring2020-hw2 |
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| Make Fruit Compote | 5 | Spring2020-hw2 |
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| Location , Movements Number Of Rabbits | 5 | Spring2020-hw2 |
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| Exchange Variables | 4 | Spring2020-hw2 |
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| Calculate Number Of Excel Columns | 8 | Spring2020-hw2 |
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| Estimate Match Result | 6 | Fall2020-hw3 |
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| Last Point Coordinates Of Rectangle | 4 | Fall2020-hw3 |
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| Colorful Rings | 7 | Fall2019-hw2 |
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| Number Of Lighted LEDs | 7 | Fall2019-hw3 |
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| Pishmargs Num | 8 | Fall2019-hw3 |
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| Shortest Path | 7 | Spring2020-hw3 |
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| Shortest Sum Of Distances Between Friends | 4 | Spring2020-hw3 |
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| Third Side Length Of Triangle | 5 | Fall2020-hw3 |
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| Calculate Salary | 3 | Fall2020-hw3 |
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| Minimum Squares Number | 3 | Fall2020-hw3 |
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| Calculation Output | 4 | Fall2016-hw2 |
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| Calculation Output 2 | 4 | Fall2017-hw2 |
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| Calculation Output 3 | 4 | Fall2018-hw2 , Fall2019-hw2 |
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| Calculation Output 4 | 4 | Fall2018-hw3 |
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| Calculation Output 5 | 4 | Spring2019-hw2 |
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| Calculation Output And Cast Question | 4 | Fall2020-hw3 |
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| Cast Question | 4 | Fall2016-hw2 |
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| Cast Question 2 | 4 | Fall2018-hw2 |
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| Cast Question 3 | 4 | Spring2019-hw2 |
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| Cast Question 4 | 4 | Fall2019-hw2 |
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| Find Compiling Errors | 4 | Spring2020-hw2 |
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| Find Compiling Errors 2 | 4 | Fall2020-hw2 |
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| The lost robot | 7 | Fall2021-hw3 |
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| Ascending Digits | 7 | Fall2021-hw3 |
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| Description | Difficulty | Occurrences | Link |
|---|---|---|---|
| Sort 6 numbers in descending order | 5 | Fall2015-hw3 |
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| Number of runs in serries | 7 | Fall2015-hw4 |
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| Shape recognition | 5 | Fall2017-hw3, Fall2016-hw3, Fall2015-hw3 |
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| rewrite the code with switch case | 3 | Fall2015-hw3 |
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| sort the input numbers in descending order with minimum comparisons | 7 | Fall2018-hw3, ُSpring2019-hw3, Fall2016-hw5, Fall2015-hw3 |
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| Min and Max of the king's age | 4 | Fall2016-hw3 |
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| Pallindrome number | 3 | Fall2017-hw3, Fall2016-hw3 |
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| Guessing the number game - part1 | 6 | Fall2017-hw5 |
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| Guessing the number game - part2 | 6 | Fall2017-hw5 |
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| Generate all the numbers congruence modulo given n | 5 | Fall2017-hw4 |
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| Common area of 2 rectangles | 7 | Fall2019-hw3, Fall2017-hw3, Fall2020-hw3 |
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| Use the minimum amount of switch cases | 4 | Fall2019-hw3, Spring2019-hw3, Fall2018-hw3 |
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| Use the least number of if-else | 4 | Fall2017-hw3 |
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| Intersection of 3 intervals | 6 | Spring2019-hw3, Fall2018-hw3 |
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| Check the triangle type | 5 | Fall2018-hw3 |
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| Calculate the least number of bills | 5 | Fall2018-hw5 |
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| Check if input is in the given interval | 7 | Fall2018-hw4 |
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| 3 or 4 points on a line and check if they form a rhombus | 5 | Spring2019-hw3 |
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| Check if inputs form a square | 6 | Fall2019-hw3 |
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| Intersection on n intervals | 6 | Fall2019-hw5 |
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| Put same amount of waters in jars | 5 | Fall2021-hw3, Spring2020-hw3 |
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| Check if input is a leap year | 4 | Spring2020-hw3 |
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| Find the value of Z | 5 | Spring2019-hw3 |
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| Find maximum subtraction | 4 | Fall2021-hw3 |
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| Check equality of reminders | 3 | Fall2021-hw3 |
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| Isosceles triangle detection | 5 | Fall2021-hw3 |
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| Description | Difficulty | Occurrences | Link |
|---|---|---|---|
| The Armstrong number | 5 | Fall2021-hw4 |
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| Coordinate snail | 6 | Fall2021-hw4 |
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| Empty library cells | 6 | Fall2021-hw4 |
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| Divisor Printer | 6 | Fall2021-hw4 |
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| Sum of prime divisors | 4 | Fall2021-hw4 |
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| Seating in a row arrangement | 7 | Fall2021-hw4 |
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| Vertices coloring | 6 | Fall2021-hw4 |
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| Description | Difficulty | Occurrences | Link |
|---|---|---|---|
| Binary code furthest ones | 4 | Fall2019-hw5 |
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| Smallest primary and symmetrical number | 4 | Fall2019-hw5 |
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| Calculating a given sequence | 4 | Fall2019-hw5 |
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| Intersection of multiple tuples | 6 | Fall2019-hw5 |
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| Partially remove a string | 5 | Fall2019-hw7 |
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| Capitalize a messy string | 4 | Fall2020-hw4 |
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| Busiest time | 6 | Fall2020-hw5 |
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| Matrix determinant | 6 | Fall2020-hw5 |
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| String containing test | 3 | Fall2020-hw5 |
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| Decode string with shifted letters | 4 | Fall2020-hw5 |
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| Recursive function | 6 | Fall2020-hw5 |
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| Right and left digit check | 2 | Fall2020-Midterm |
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| Number in a series check | 4 | Spring2019-hw4 |
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| Game of calculations | 5 | Spring2019-hw4 |
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| Mth digit of number N | 2 | Spring2019-hw5 |
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| Fibonacci seriese | 5 | Spring2019-hw5 |
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| Simple calculator | 5 | Spring2019-hw5 |
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| Progress stairs | 3 | Spring2020-hw4 |
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| Matrix Determinant 2 | 6 | Spring2020-hw4 |
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| Number base changer | 7 | Spring2020-hw4 |
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| Digit exchanger | 6 | Spring2020-hw4 |
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| Cover with tiles | 7 | Fall2021-hw4 |
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| Description | Difficulty | Occurrences | Link |
|---|---|---|---|
| Dynamic matrix | 5 | Fall2017-hw7 |
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| Find the intersection of two sets | 5 | Fall2018-hw7 |
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| Find repeated letters in a string | 6 | Spring2019-hw7 |
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| Sum of rational numbers | 5 | Spring2019-hw7 |
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| Transpose and multiplication of matrix | 6 | Spring2019-hw7 |
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| Remove a string from another one | 6 | Fall2019-hw7 |
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| Print subsets | 8 | Fall2019-hw7 |
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| Find the smallest missing positive integer | 4 | Fall2019-hw7 |
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| Replace string | 6 | Spring2020-hw6 |
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| Chance game | 6 | Spring2020-hw6 |
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| Sum of distinct numbers | 7 | Spring2020-hw6 |
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| Snail in matrix | 7 | Spring2020-hw6 |
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| Find output | 4 | Fall2015-hw7 |
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| Find output 2 | 4 | Fall2017-hw7 |
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| Find output 3 | 4 | Fall2018-hw7 |
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| Find output 4 | 4 | Spring2019-hw7 |
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| Find output 5 | 4 | Fall2019-hw7 |
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| Find output 6 | 4 | Fall2019-hw7 |
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| Find output 7 | 4 | Fall2019-hw7 |
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| Debug and find output | 5 | Spring2020-hw6 |
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| Description | Difficulty | Occurrences | Link |
|---|---|---|---|
| Sort date with qsort | 8 | Fall2015-hw7 |
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| Remove node with specific value | 5 | Fall2015-hw7 |
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| Sum of rational numbers smaller than x | 7 | Fall2015-hw7,Spring2019-hw6 |
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| Add x before y in linked list | 4 | Fall2017-hw7 |
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| Sort n rational number in descending or ascending form | 7 | Fall2017-hw7 |
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| Count repeat of characters | 6 | Fall2018-hw7 |
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| Remove x with same values and keep the one with smallest y | 7 | Fall2018-hw7 |
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| Sort two ascending linked list in ascending form | 7 | Fall2019-hw8 |
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| Replace two neighbour numbers with each other | 6 | Fall2019-hw8 |
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| check if linked list is symmetrical | 5 | Fall2019-hw8 |
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| Sort students by thier average and student-id | 7 | Fall2019-hw8 |
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| Phonebook for students | 9 | Fall2019-hw8,Spring2019-hw6 |
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| Reverse linked list | 5 | Fall2020-hw6 |
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| Sum of two linked list | 5 | Fall2020-hw6 |
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| Sort two descending linked list in descending form | 7 | Fall2020-hw6 |
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| Place third linkedlist in place of second linked list in first linked list | 5 | Fall2020-hw6 |
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| Linked list with flag and date_or_cnt | 7 | Spring2019-hw6 |
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| Description | Difficulty | Occurrences | Link |
|---|---|---|---|
| Copy file content into another file | 3 | Fall2017-hw7 |
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| Read binary file and place min and max time into the beginning and end of file | 3 | Fall2017-hw7 |
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| Find average, min and max time | 3 | Fall2018-hw7 |
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