Posts by Software-engineer
[C] Algorithm : Backjoon 17471 게리맨더링
Baekjoon Problem 17471 is Gerrymandering. Please check the details and pictures of the problem in Baekjonn. For uncomplicated algorithmic problems, it is possible to code the problem ...
In C, Dec 22, 2020![[C] Algorithm : Backjoon 17471 게리맨더링](/assets/images/candcplus.png)
[C] Algorithm : Backjoon 17070 파이프 옮기기 1
Baekjoon Problem 17070 is pipe transfer 1. Please check the details and pictures of the problem in Baekjonn. For uncomplicated algorithmic problems, it is possible to code the problem...
In C, Dec 22, 2020
[C] Algorithm : Backjoon 16637 괄호 추가하기
Baekjoon Problem 16637 is the addition of parentheses. Please check the details and pictures of the problem in Baekjonn. For uncomplicated algorithmic problems, it is possible to code...
In C, Dec 22, 2020
[C] Algorithm : Backjoon 14502 연구소
Baekjoon Problem 14502 is laboratory. Please check the details and pictures of the problem in Baekjonn. For uncomplicated algorithmic problems, it is possible to code the problem righ...
In C, Dec 22, 2020
[C] Algorithm : Backjoon 14501 퇴사
Baekjoon Problem 14501 is resignation. Please check the details and pictures of the problem in Baekjonn. For uncomplicated algorithmic problems, it is possible to code the problem rig...
In C, Dec 22, 2020
[C] Algorithm : Backjoon 14500 테트로미노
Baekjoon Problem 14500 is tetromino. Please check the details and pictures of the problem in Baekjonn. For uncomplicated algorithmic problems, it is possible to code the problem right...
In C, Dec 22, 2020
[C] Algorithm : Backjoon 14499 주사위 굴리기
Baekjoon Problem 14499 is roll the dice. Please check the details and pictures of the problem in Baekjonn. For uncomplicated algorithmic problems, it is possible to code the problem r...
In C, Dec 22, 2020
[C] Algorithm : Backjoon 13458 시험 감독
Baekjoon Problem 13458 is test supervision. Please check the details and pictures of the problem in Baekjonn. For uncomplicated algorithmic problems, it is possible to code the proble...
In C, Dec 22, 2020
[C] BFS(Breadth First Search) 너비 우선 탐색
In this article, I will focus on breadth first search. BFS is a search algorithm that proceeds in the form of an octopus when the list of vertices going from vertex A to B is differen...
In C, Dec 21, 2020
[C] DFS(Depth First Search) 깊이 우선 탐색
When explaining the graph data structure, we learned about the path. The list of vertices that goes through to move from vertex A to B may be different, and thus each may have differe...
In C, Dec 20, 2020
[C] Graph, 그래프
A graph is a nonlinear data structure that expresses the relationship between objects, and expresses a many-to-many relationship. It should be noted that graphs in C language are diff...
In C, Dec 19, 2020
[C] Permutation, Combination, 순열, 조합
The part about permutation and combination is a regular customer who frequently appears in algorithmic problem solving and is a good example to understand recursive calls. In addition...
In C, Dec 18, 2020
[C] Recursive call, 재귀호출
Recursive calls are calling the same function within a function, i.e. itself. Recursive calls call the same function within a function, but behave like other functions because the mem...
In C, Dec 17, 2020
[C] Queue, 큐
Unlike stacks that have a LIFO structure, a queue is a FIFO(first-input-first-output) structure in which the positions of insertion and deletion of data are opposite. In other words, ...
In C, Dec 16, 2020
[C] Stack, 스택
The stack is literally a data structure in the form of stacking data one by one. The stack is also a data structure that is accessed and processed from the top, just as it is impossib...
In C, Dec 15, 2020
[C] Data Structure, 자료구조
Data structure in the dictionary sense is to express, store, and organize data in order to efficiently process data. In designing a software program, selecting an appropriate data str...
In C, Dec 14, 2020
[C] Structure, 구조체
Structures are mainly used when you want to collect and deal with various data types from declaring and using data types one by one. Structures are derived types created by combining ...
In C, Dec 13, 2020
[C] Heap & Dynamic memory allocation 힙 & 동적 메모리 할당
In the previous post, we looked at the array form that is declared and used with a fixed size variable type. However, the static memory allocation method, which uses a certain amount ...
In C, Dec 13, 2020
[C] Pointer application, 포인터 활용
The pointer concept is simple, but the use case is confusing, so let’s look at a few simple functions. The first is when you use an increment operator and a pointer together. Both *a+...
In C, Dec 12, 2020
[C] Pointer, 포인터
Pointers can be understood as literally pointing to, pointing action objects. Regardless of the role of a pointer, since it is also an object, it can be defined and used as a variable...
In C, Dec 11, 2020
[C] Simple sort, 단순 정렬
Of the various algorithms for sorting elements in an array, Simple sort is the simplest. Simple sort is in principle the same as Bubble sort. Basically, it is implemented through a do...
In C, Dec 10, 2020
[C] Selection sort, 선택 정렬
Selective sorting is a sorting algorithm that replaces the largest/smallest value among the comparison targets at a specific position. In the case of ascending order, the minimum valu...
In C, Dec 10, 2020
[C] Bubble sort, 버블 정렬
Bubble sorting performs sorting in the form of comparing and exchanging values of two adjacent elements with the name given to the form performing sorting like bubbling. The differenc...
In C, Dec 10, 2020
[C] Fining max value, 알고리즘 : 최대 값 찾기
To find the maximum value in an array, you can directly find the maximum value or return the index where the maximum value of the array is located. Since the maximum value in the arra...
In C, Dec 10, 2020
[C] Array 배열
In Data type, a data type was declared for one variable and a value was assigned. However, it is very inefficient to declare 100 variables for 100 values. Arrays are used to manipulat...
In C, Dec 07, 2020
[C] If, For, While, and Switch
If statement is composed of conditional decision statement and execution statement. If the conditional expression in If() is true, the subsequent execution statement is executed, and ...
In C, Dec 06, 2020
[C] Declaration of variables and functions 변수와 함수의 선언
When writing code based on the C language, variables or functions are used. These are declared with definitions, and they need to be understood because they have different behaviors d...
In C, Dec 05, 2020
[C] Relational, logical, and ternary operators 관계, 논리, 그리고 삼항연산자
In c language, True / False corresponds to non-zero and zero, respectively. Conditional expressions that judge true/false through operators are mainly used in if, for, and while state...
In C, Dec 05, 2020
[C] Four arithmetic operations 사칙연산
In order to correctly perform the four arithmetic operations in the c language, it is necessary to understand the data types, operators, and operation precedence. Data types were disc...
In C, Dec 04, 2020
[C] scanf
scanf function also has a letter f ,formatted as printf meaning that it can specify the format. scanf function accepts input and is a standard library function like printf, so when us...
In C, Dec 03, 2020
[C] ASCII, String 문자열
ASCII is easy to understand if you think of it as a code assignment table for letters. Each letter is assigned a numeric value and uses 1B (8 bit) memory. If this is expressed in hexa...
In C, Dec 03, 2020
[C] Data Type 자료형
Data type means the type of variables. Variables refer to an object to transfer or store a value as the code proceeds. In particular, since C is a programming language that can access...
In C, Dec 03, 2020
[C] Numeral System 기수법
Before introducing the representative data types used in the C language, one thing to look at is numeral system. Numeral system is a method of expressing numbers. In addition to the d...
In C, Dec 03, 2020
[C] printf, format specifier 서식 지정자
The letter f in printf stands for formatted, meaning that you can format the output. The output format can be specified by inserting the format specifier content between “ “. Represen...
In C, Dec 02, 2020
[C] Hello World
The first thing you do learning a programming language is to print Hello World. It is a representative learning stage so ther is a HelloWorld series for each programming language. The...
In C, Dec 02, 2020
Markdown mathematic formulars 마크다운 수식
In articles which follow the Markdown format, mathematical formulars are expressed within the text or in block form. The basic form of expressing formulars are to place them between t...
In Markdown, Sep 28, 2020
Post settings for jekyll blog 지킬 블로그 게시글 설정
Jekyll theme blog declares prior information about the article at the heading of the document. The pre-declaration information includes layout, title, author, categories, and represen...
In Jekyll, Sep 27, 2020
Markdown 마크다운
Posts using the Jekyll like this blog are converted to html accroading to the _post template. Articles are written based on the _post template and the Markdown extension document. The...
In Markdown, Sep 24, 2020
Markdown syntax 마크다운 문법
This blog has a default layout which includes the stlye of first letter having 3ea. Also it is a gitblog type blog on jekyll structure. Mundana is being used as one of the jekyll theme.
In Markdown, Sep 19, 2020