wow

02/02_33p.c

@@ -12,10 +12,5 @@ int main() {
 
     printf("char: %zu bytes\n", sizeof(char));
 
-    char ch = 'A';
-    printf("\n%c %d", ch, ch);
-    ch += 32;
-    printf("\n%c %d", ch, ch);
-
     return 0;
 }

02/02_55p.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int main() {
+    char str;
+    printf("영문자 입력 : ");
+    scanf("%c", &str);
+
+    printf("입력한 문자는 '%c'이고\n", str);
+    printf("ASCII 코드 값은 %d입니다.\n", str);
+    return 0;
+}

02/02_56p.c

@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <string.h>
+
+int main() {
+    char name[100];
+    char school[100];
+    char department[100];
+
+    printf("이름 : ");
+    scanf("%s", name);
+    getchar(); // consume newline
+    printf("학교 : ");
+    fgets(school, sizeof(school), stdin);
+    school[strcspn(school, "\n")] = '\0'; // remove newline from school
+    printf("학과 : ");
+    scanf("%s", department);
+
+    printf("%s\n%s\n%s님 안녕하세요?\n", school, department, name);
+    
+    return 0;
+}

02/02_57p.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+
+int main() {
+    int A;
+    int B;
+
+    printf("정수 A : ");
+    scanf("%d", &A);
+    printf("정수 B : ");
+    scanf("%d", &B);
+
+    printf("정수 A와 B의\n");
+    printf("합 : %d\n", A + B);
+    printf("평균 : %.f\n", (A + B) / 2.0);
+
+    return 0;
+}

02/02_60p.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main() {
+    char some[20];
+    printf("문자열 입력 : ");
+    scanf("%s", some);
+    printf("[출력결과]\n");
+    for (int i = 0; i < 4; i++) {
+        printf("%c", some[i]);
+    }
+
+    return 0;
+}

02/02_61p.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+int main() {
+    int A, B;
+
+    printf("정수 A : ");
+    scanf("%d", &A);
+    printf("정수 B : ");
+    scanf("%d", &B);
+
+    printf("정수 A / B 결과 출력(지수형)\n");
+    printf("%.2e\n", (double)A / B);
+    
+    return 0;
+}

02/02_62p.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int main() {
+    double yard;
+    printf("야드 (yard) 입력 : ");
+    scanf("%lf", &yard);
+    printf("[출력결과]\n");
+    printf("%.1lfyard=>%.1lfcm\n", yard, yard * 91.44);
+
+    return 0;
+}

02/02_63p.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+#include <string.h>
+
+int main() {
+    int num;
+
+    printf("10진수 입력 : ");
+    scanf("%d", &num);
+
+    printf("\n[출력결과]\n\n");
+    printf("1. 8진수 : %o\n", num);
+    printf("2. 16진수 : %X\n", num);
+
+    return 0;
+}

02/02_68p.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <string.h>
+
+int main() {
+    int a = 1;
+    int b = 2;
+
+    printf("a: %d b: %d\n", a, b);
+
+    int temp = a;
+    a = b;
+    b = temp;
+    
+    printf("a: %d b: %d", a, b);
+
+    return 0;
+}

02/02_69p.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <windows.h>
+
+#define C 1046.502
+#define D 1108.731
+#define E 1318.510
+#define F 1396.913
+#define G 1567.982
+#define A 1760.000
+#define B 1975.533
+
+int main() {
+    int notes[] = {
+        G, G, A, A, G, G, E, G, G, E, E, D,
+        G, G, A, A, G, G, E, G, E, D, E, C
+    };
+    int noteDelays[] = {
+        200, 200, 200, 200, 200, 200, 400, 200, 200, 200, 200, 500,
+        200, 200, 200, 200, 200, 200, 400, 200, 200, 200, 200, 500
+    };
+    int i;
+
+    for (i = 0; i < (int)(sizeof(notes) / sizeof(notes[0])); i++) {
+        Beep(notes[i], 500);
+        Sleep(noteDelays[i]);
+    }
+    
+    system("pause"); 
+    return 0; 
+}