Added files from first programming course at OSU

OSU Coursework/CS 161 - Intro to Programming I/Labs/Lab 4/division.c

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+/*
+ * Original Author: Corwin A. Perren (perrenc)
+ * File: division.c
+ * Created: 2012 February 8, 16:58 by perrenc
+ * Last Modified: 2012 February 8, 23:15 by perrenc
+ *
+ * Has the user enter two integers, swaps them if the second one entered is larger than
+ * the first one, then divides the first by the second, first mod second, and the first
+ * by the second as doubles. It then prints out these values along with the equation.
+ */
+ 
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+
+	int userint1; //User input 1
+	int userint2; //User input 2
+	int swap; //Used for swapping input 1 and 2 if 2 is larger than 1
+	double double1; //Used for making a double of userint1
+	double double2; //Used for making a double of userint2
+
+//Clears the screen, and asks the user to enter the two integers
+	system("clear");
+	printf("Please enter an integer: ");
+	scanf("%d", &userint1);
+	printf("Please enter a second integer: ");
+	scanf("%d", &userint2);
+
+//Swaps userint1 and userint2 if userint2 is larger than userint1
+	if(userint2 > userint1){
+		swap = userint1;
+		userint1 = userint2;
+		userint2 = swap;
+	}
+	
+//Prints and error and ends the program if you try and divide by zero	
+	if(userint2 == 0){
+		printf("\nYou cannot divide by zero, program ending...\n\n");
+		return(1);
+	}	
+
+//Prints userint1/userint2 and userint1 mod userint2
+	printf("\n%d / %d = %d\n", userint1, userint2, (userint1 / userint2));
+	printf("%d %% %d = %d\n", userint1, userint2, (userint1 % userint2));
+
+//Converts userint1 and 2 to doubles
+	double1 = userint1;
+	double2 = userint2;
+
+//Prints double1/double2
+	printf("%lf / %lf = %lf\n\n", double1, double2, (double1 / double2));
+	
+}

OSU Coursework/CS 161 - Intro to Programming I/Labs/Lab 4/lab4_1.c

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+/*
+ * Original Author: Corwin A. Perren (perrenc)
+ * File: lab4_1.c
+ * Created: 2012 February 6, 15:10 by perrenc
+ * Last Modified: 2012 February 8, 23:00 by perrenc
+ * 
+ * Asks the user for five floating point values, and prints them
+ * if all are entered correctly, else it ends the program.
+ */
+ 
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+
+	double f1 = -1.0; //First user float value
+	double f2 = -1.0; //Second user float value
+	double f3 = -1.0; //Third user float value
+	double f4 = -1.0; //Fourth user float value
+	double f5 = -1.0; //Fifth user float value
+
+// Clears the screen, then explains what needs to be entered, and what will be printed.
+	system("clear");
+	printf("I am going to ask you to enter 5 different positive floating point numbers.\n");
+	printf("I will end the program as soon as you enter a negative value or a repeat number.\n");
+	printf("I will congratulate you and print out the 5 numbers if you successfully complete the task.\n\n");
+
+/* Has the user input five values, and quits the program if an entered number is negative
+ * or if two numbers entered in a row are the same. If the values are entered correctly,
+ * it prints out the five values the user entered.
+ */
+			printf("Please enter your first number. ");
+			scanf("%lf", &f1);
+			if(f1 < 0){
+				return(0);
+			}	
+			printf("Please enter your second number. ");
+			scanf("%lf", &f2);
+			if((f2 == f1) | (f2 < 0)){
+				return(0);
+			}
+			printf("Please enter your third number. ");
+			scanf("%lf", &f3);
+			if((f3 == f2) | (f3 < 0)){
+				return(0);
+			}
+			printf("Please enter your fourth number. ");
+			scanf("%lf", &f4);
+			if((f4 == f3) | (f4 < 0)){
+				return(0);
+			}
+			printf("Please enter your fifth number. ");
+			scanf("%lf", &f5);
+			if((f5 == f4) | (f5 < 0)){
+				return(0);
+			}
+			printf("\nYour numbers were: %lf, %lf, %lf, %lf, %lf\n\n", f1, f2, f3, f4, f5);
+
+}

OSU Coursework/CS 161 - Intro to Programming I/Labs/Lab 4/lab4_2.c

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+/*
+ * Original Author: Corwin A. Perren (perrenc)
+ * File: lab4_2.c
+ * Created: 2012 February 8, 16:58 by perrenc
+ * Last Modified: 2012 February 8, 23:09 by perrenc
+ *
+ * Asks the users for a number between 1 and 20 and prints up to that number from one
+ * and down to one from that number.
+ * It errors if the value is not within this range.
+ */
+ 
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+
+	int userinput; //Variable for user input
+	int loop; //Used for looping
+
+// Clears the screen and asks the user to input an integere between one and twenty
+	system("clear");
+	printf("Please enter an integer between 1 and 20: ");
+	scanf("%d", &userinput);
+
+// Quits the program if an incorrect value has been entered
+	if((1 > userinput) | (userinput > 20)){
+		printf("You have entered an incorrect value, closing program...\n");
+		return(-1);
+	}
+
+//Prints up from one to the user entered value
+	for(loop = 1 ; (loop <= userinput) ; ++loop){
+		printf("%d ", loop);
+	}
+//Prints newline
+	printf("\n");
+
+//Prints down to one from the user entered number
+	for(loop = userinput ; ((loop <= userinput) & (loop != 0)) ; loop--){
+		printf("%d ", loop);
+	}
+//Prints a newline	
+	printf("\n");
+}

OSU Coursework/CS 161 - Intro to Programming I/Labs/Lab 4/lab4_4.c

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+/* Original Author: Corwin Perren (perrenc)
+ * File: lab4_4.c
+ * Created: 2012 February 08, 21:05 by perrenc
+ * Last modified: 2012 February 08, 23:23 by perrenc
+ *
+ * Purposefully used for making and correcting errors
+ */
+
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+
+	/*creates the user input and incrementing variables*/
+	int i;
+	int loop;
+	
+	system("clear");
+	printf("Enter an integer between 1 and 20:\n");
+	scanf("%d", &i);
+
+	/*errors and exits if i is greater than 20 or less than one*/
+	if((1 > i) | (i > 20)){
+		printf("You have entered an incorrect value.\n");
+		return(-1);
+	}
+	/*prints ascending characters from one up to the user entered value*/
+	for (loop = 1; (loop <= i); ++loop){
+		printf("%d ", loop);
+	}
+
+	printf("\n");
+
+	/*prints descending characters from the user entered value down to 1*/
+	for(loop = i; ((loop <= i) & (loop != 0)); loop--){
+		printf("%d ", loop);
+	}
+	printf("\n");
+}
+
+/*error listings
+ * Removed semicolon at line 23: "expected ; before return"
+ * Commented out variable i on line 14: "i undeclared (first use in this function.
+		Each undeclared identifier is reported only once for each function it appears in."
+ * Removed braces from the following if function: "expected } before else"
+
+int extra() {
+	if(x < 3) {
+		printf("x is less than 3.\n");
+		printf("you fart loudly.");
+	else
+		printf("x is not less than 3.\n");
+		printf("et cetera\n");
+}
+}
+ * Removed parentheses from line 27: "expected ( before loop
+									  expected ; before { token"
+ * Passed wrong type to line 28: It compiled, but output was empty.
+ */