chapter5

DeitelC/Chapter5/currencyConversion.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+
+void usdToEuro(double);
+void usdToYen(double);
+
+int main(void) {
+	double usd = 1;
+	usdToEuro(usd);
+	usdToYen(usd);
+	return 0;
+}
+
+void usdToEuro(double usd) {
+	double euro = usd * 0.92;
+	printf("%3s\t%s\n", "USD", "EURO");
+	printf("%3.2f\t%3.2f\n", usd, euro);
+}
+
+void usdToYen(double usd) {
+	double yen = usd * 118.87;
+	printf("%3s\t%s\n", "USD", "YEN");
+	printf("%3.2f\t%3.2f\n", usd, yen);
+}

DeitelC/Chapter5/hypotenuse.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include <math.h>
+
+double hypotenuse (double side1, double side2);
+
+int main (void) {
+    double side1, side2;
+    printf("Enter side 1 and side 2\n");
+    scanf("%lf%lf", &side1, &side2);
+    printf("%3s%3.2lf\n", "Hypotenuse: ", hypotenuse(side1, side2));
+}
+
+double hypotenuse (double side1, double side2) {
+    double hypo = (side1 * side1) + (side2 * side2);
+    return sqrt(hypo);
+}

DeitelC/Chapter5/isEven.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int isEven (int num);
+
+int isEven (int num) {
+    if (num % 2 == 0) {
+        return 1;
+    } else {
+        return 0;
+    }
+}

DeitelC/Chapter5/isEvenCheck.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+#include "isEven.c"
+
+int main (void) {
+    int a = isEven(2);
+    printf("%d\n", a);
+}

DeitelC/Chapter5/randExample.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main (void) {
+    printf("%d\n", 1 + rand() % 6);
+    printf("%d\n", 100 + rand() % 900);
+    printf("%d\n", rand() % 19);
+    printf("%d\n", 1000 + rand() % 1222);
+    printf("%d\n", -1 + rand() % 2);
+    printf("%d\n", -3 + rand() % 15);
+    printf("%d\n", 3 * (1 + rand() % 10));
+    printf("%d\n", 3 + 2 * (rand() % 9));
+    printf("%d\n", 3 + 5 * (rand() % 7));
+}

DeitelC/Chapter5/rectangleOfAnyChar.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+void rectangleOfAnyChar (int side1, int side2, char a);
+
+
+void rectangleOfAnyChar (int side1, int side2, char a) {
+    for(int i = 0; i < side1; i++) {
+        for(int j = 0; j < side2; j++) {
+            printf("%c", a);
+        }
+        printf("\n");
+    }
+}

DeitelC/Chapter5/rectangleOfAsteriks.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+void rectangleOfAsteriks(int side1, int side2);
+
+void rectangleOfAsteriks(int side1, int side2)
+{
+	for (int i = 0; i < side1; i++) {
+		for (int j = 0; j < side2; j++) {
+			printf("*");
+		}
+		printf("\n");
+	}
+}

DeitelC/Chapter5/rectangleOfAsteriks.c~

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+void rectangleOfAsteriks (int side1, int side2);
+
+
+void rectangleOfAsteriks (int side1, int side2) {
+    for(int i = 0; i < side1; i++) {
+        for(int j = 0; j < side2; j++) {
+            printf("*");
+        }
+        printf("\n");
+    }
+}

DeitelC/Chapter5/rectangleOfAsteriksDemo.c

@@ -0,0 +1,6 @@
+#include <stdio.h>
+#include "rectangleOfAsteriks.c"
+
+int main (void) {
+    rectangleOfAsteriks(4,5);
+}

DeitelC/Chapter5/rectangleOfDemo.c

@@ -0,0 +1,6 @@
+#include <stdio.h>
+#include "rectangleOfAnyChar.c"
+
+int main (void) {
+    rectangleOfAnyChar(4,5,'@');
+}

DeitelC/Chapter5/roundingNumbers.c

@@ -1,10 +1,38 @@
 #include <stdio.h>
 #include <math.h>
 
+int roundToInteger(double number);
+int roundToTenths(double number);
+int roundToHundreths(double number);
+int roundToThousandths(double number);
+
+
 int main (void) {
     double num;
     printf("%s\n", "Enter a number!");
     scanf("%lf", &num);
-    int y = floor(num + .5);
-    printf("%3s\t%3lf\t%3s\t%3d\n", "Orginal num:", num, "Rounded: ", y);
+    printf("%3s\t%3lf\t%3s\t%3d\n", "Orginal num:", num, "Rounded: ", roundToInteger(num));
+    printf("%3s\t%3lf\t%3s\t%3d\n", "Orginal num:", num, "Rounded: ", roundToTenths(num));
+    printf("%3s\t%3lf\t%3s\t%3d\n", "Orginal num:", num, "Rounded: ", roundToHundreths(num));
+    printf("%3s\t%3lf\t%3s\t%3d\n", "Orginal num:", num, "Rounded: ", roundToThousandths(num));
+}
+
+int roundToInteger(double number) {
+    int y = floor(number + .5);
+    return y;
+}
+
+int roundToTenths(double number) {
+    int y = floor(number * 10 + .5) / 10;
+    return y;
+}
+
+int roundToHundreths(double number) {
+    int y = floor(number * 100 + .5) / 100;
+    return y;
+}
+
+int roundToThousandths(double number) {
+    int y = floor(number * 1000 + .5) / 1000;
+    return y;
 }

DeitelC/Chapter5/separatingDigits.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+
+int main(void) {
+	puts("Enter integer");
+	int scanV;
+	scanf("%d", &scanV);
+	int rem = 10000;
+	int firstD = 1;
+
+	if(scanV < 32768 && scanV >= 1) {
+		while(rem >= 1) {
+			int digit = scanV / rem;
+			if(!firstD || digit) {
+				printf("%d  ", digit);
+				firstD = 0;
+				scanV = scanV % rem;
+			}
+
+			rem /= 10;
+		}
+		printf("\n");
+	}
+}

DeitelC/Chapter5/sidesOfTriangle.c

@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <math.h>
+
+double sidesOfTriangle (double s1, double s2, double s3);
+
+int main (void) {
+    double s1, s2, s3;
+    printf("%s\n","Enter sides of triangle");
+    scanf("%lf%lf%lf", &s1, &s2, &s3);
+    double area = sidesOfTriangle(s1, s2, s3);
+    if(area >= 0) {
+        printf("%3s%lf\n", "Area: ", area);
+    }
+    return 0;
+}
+
+double sidesOfTriangle (double s1, double s2, double s3) {
+    double perimeter = s1 + s2 + s3;
+    double u = perimeter / 2;
+    if ((s1 < s2 + s3) && (s2 < s1 + s3) && (s3 < s1 + s2)) {
+        return sqrt(u * (u - s1) * (u - s2) * (u - s3));
+    }
+    return -1;
+}

DeitelC/Chapter5/struck12.c

@@ -0,0 +1,26 @@
+#include <stdio.h>
+
+void struck12(int, int, int);
+
+int main(void) {
+	puts("Enter time in 3 integer!(H,M,Sec)");
+	int time1, time2, time3 = 0;
+
+	scanf("%d%d%d", &time1, &time2, &time3);
+	struck12(time1, time2, time3);
+
+	return 0;
+}
+
+void struck12(int i1, int i2, int i3) {
+	int total = (i1*3600) + (i2*60) + i3;
+
+	if(total > 43200) {
+		total -= 43200;
+	}
+		int rem = 43200 - total;
+		int sec = rem % 60;
+		int h = rem / 3600;
+		int m = (rem - (h * 3600) - sec) / 60;
+		printf("%s%d%s%d%s%d%s\n", "Struck 12: ", h, " Hours, ", m, " Min, ", sec, " Secs left. ");
+}