알고리즘 1주차

알파벳 정렬

#include

#pragma warning(disable: 4326 4996 6031)

#define N 26

void main()

{

// 다음을 출력하라

for (int i = 0; i < n; i++) {

for (int j = 0; j < N; j++) {

putchar('A' + (i + j) % N);

}

putchar(10);

}

}

/*****

ABCDEFGHIJKLMNOPQRSTUVWXYZ

BCDEFGHIJKLMNOPQRSTUVWXYZA

CDEFGHIJKLMNOPQRSTUVWXYZAB

DEFGHIJKLMNOPQRSTUVWXYZABC

EFGHIJKLMNOPQRSTUVWXYZABCD

FGHIJKLMNOPQRSTUVWXYZABCDE

GHIJKLMNOPQRSTUVWXYZABCDEF

HIJKLMNOPQRSTUVWXYZABCDEFG

IJKLMNOPQRSTUVWXYZABCDEFGH

JKLMNOPQRSTUVWXYZABCDEFGHI

KLMNOPQRSTUVWXYZABCDEFGHIJ

LMNOPQRSTUVWXYZABCDEFGHIJK

MNOPQRSTUVWXYZABCDEFGHIJKL

NOPQRSTUVWXYZABCDEFGHIJKLM

OPQRSTUVWXYZABCDEFGHIJKLMN

PQRSTUVWXYZABCDEFGHIJKLMNO

QRSTUVWXYZABCDEFGHIJKLMNOP

RSTUVWXYZABCDEFGHIJKLMNOPQ

STUVWXYZABCDEFGHIJKLMNOPQR

TUVWXYZABCDEFGHIJKLMNOPQRS

UVWXYZABCDEFGHIJKLMNOPQRST

VWXYZABCDEFGHIJKLMNOPQRSTU

WXYZABCDEFGHIJKLMNOPQRSTUV

XYZABCDEFGHIJKLMNOPQRSTUVW

YZABCDEFGHIJKLMNOPQRSTUVWX

ZABCDEFGHIJKLMNOPQRSTUVWXY

*****/

ㄷㄷ 이렇게도 짤 수 있구나..

// chatGPT를 이용하여 구구단 출력하기

#include

void MultiTblDan(int nDan);

void MultiTblRow(int nDan, int nRow);

void MultiTbl();

void main() {

    MultiTbl();

}

void MultiTblDan(int nDan) {

    for (int i = 2; i <= 9; i++) {

        printf("%d x %d = %2d\n", nDan, i, nDan * i);

    }

}

void MultiTblRow(int nDan, int nRow) {

    for (int i = 2; i <= 9; i += nRow) {

        for (int j = 0; j < nRow && i + j <= 9; j++) {

            printf("%d x %d = %2d\t", nDan, i + j, nDan * (i + j));

        }

        printf("\n");

    }

}

void MultiTbl() {

    for (int i = 2; i <= 9; i++) {

        MultiTblRow(i, 1);

    }

}

구구단 출력하기

#include <stdio.h>

#pragma warning(disable: 4326 4996 6031)

void main()

{

// 아래의 함수들을 사용하여 구구단을 출력하라

// 실행시켜야함

MultiTbl();

}

void MultiTbl()

{

// 2단부터 9단까지 구구단을 출력한다.

void MultitableDan(int nDan);

for (int nDan = 2; nDan <= 9; nDan++) {

MultiTblDan(nDan);

putchar(10);

}

}

void MultiTblDan(int nDan)

{

void MultiTblRow(int nDan, int nRow);

// 구구단의 한 단(nDan)을 출력한다

for (int nRow = 2; nRow <= 9; nRow++) {

MultiTblRow(nDan, nRow);

}

}

void MultiTblRow(int nDan, int nRow)

{

// 구구단의 한 행(nDan의 nRow행)을 출력한다.

printf("%d x %d = %2d\n", nDan, nRow, nDan * nRow);

}

/*****

2 x 2 =  4

2 x 3 =  6

2 x 4 =  8

2 x 5 = 10

2 x 6 = 12

2 x 7 = 14

2 x 8 = 16

2 x 9 = 18

3 x 2 =  6

3 x 3 =  9

3 x 4 = 12

3 x 5 = 15

3 x 6 = 18

3 x 7 = 21

3 x 8 = 24

3 x 9 = 27

4 x 2 =  8

4 x 3 = 12

4 x 4 = 16

4 x 5 = 20

4 x 6 = 24

4 x 7 = 28

4 x 8 = 32

4 x 9 = 36

5 x 2 = 10

5 x 3 = 15

5 x 4 = 20

5 x 5 = 25

5 x 6 = 30

5 x 7 = 35

5 x 8 = 40

5 x 9 = 45

6 x 2 = 12

6 x 3 = 18

6 x 4 = 24

6 x 5 = 30

6 x 6 = 36

6 x 7 = 42

6 x 8 = 48

6 x 9 = 54

7 x 2 = 14

7 x 3 = 21

7 x 4 = 28

7 x 5 = 35

7 x 6 = 42

7 x 7 = 49

7 x 8 = 56

7 x 9 = 63

8 x 2 = 16

8 x 3 = 24

8 x 4 = 32

8 x 5 = 40

8 x 6 = 48

8 x 7 = 56

8 x 8 = 64

8 x 9 = 72

9 x 2 = 18

9 x 3 = 27

9 x 4 = 36

9 x 5 = 45

9 x 6 = 54

9 x 7 = 63

9 x 8 = 72

9 x 9 = 81

*****/