Assignment 5 - Olivier

assignment6.txt

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+Olivier Gabison
+
+1. It will print:
+203 1 23
+
+2. Structures allow you to group variables and mixed data types together in a single
+unit. Enums is a data type where every possible value is defined as a symbolic constant.
+You would use structures when making a bank account, and enums when defining the days of the week.
+
+3. Passing an array directly to an array causes pass by value. While passing a structure containing an array
+causes that object, including the array, to be copied into the function's parameter.

banking.c

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+//Olivier Gabison - Banking System
+
+#include <stdio.h>
+
+struct bank {
+  char name[100];
+  int number;
+  float balance;
+};
+
+struct bank deposit(struct bank bank, float money){
+  printf("Depositing $%f into your account...\n", money);
+  bank.balance += money;
+  printf("Your account now has $%f\n", bank.balance);
+  return bank;
+}
+
+struct bank withdraw(struct bank bank, float money){
+  printf("Withdrawing $%f from your account...\n", money);
+  bank.balance -= money;
+  printf("Your account now has $%f\n", bank.balance);
+  return bank;
+}
+
+int getBal(struct bank bank){
+  printf("%s has $%f\n", bank.name, bank.balance);
+}
+int main(){
+
+  struct bank bank1 = {"Account 1", 1, 100.0};
+  struct bank bank2 = {"Account 2", 2, 1000.0};
+
+  getBal(bank1);
+  bank1 = deposit(bank1, 100);
+  bank1 = withdraw(bank1, 50);
+  getBal(bank1);
+
+  getBal(bank2);
+  bank2 = deposit(bank2, 200);
+  bank2 = withdraw(bank2, 100);
+  getBal(bank2);
+
+
+
+
+  return 0;
+}

complex.c

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+//Olivier Gabison - Add/Subtract/Multiply/Divide with complex numbers
+
+#include <stdio.h>
+
+struct complex {
+  int real;
+  int imag;
+};
+
+struct complex add(struct complex complex1, struct complex complex2){
+  int c_real = complex1.real + complex2.real;
+  int c_imag = complex1.imag + complex2.imag;
+  struct complex complex3 = {c_real, c_imag};
+  return complex3;
+}
+
+struct complex subtract(struct complex complex1, struct complex complex2){
+  int c_real = complex1.real - complex2.real;
+  int c_imag = complex1.imag - complex2.imag;
+  struct complex complex3 = {c_real, c_imag};
+  return complex3;
+}
+
+struct complex multiply(struct complex complex1, struct complex complex2){ //(3 + 2i)(5 + 2i)
+  int c_real = (complex1.real * complex2.real);
+  int c_imag = (complex1.imag * complex2.real) + (complex1.real * complex2.imag) + (-(complex1.imag * complex2.imag));
+  struct complex complex3 = {c_real, c_imag};
+  return complex3;
+}
+
+struct complex divide(struct complex complex1, struct complex complex2){ //I don't know how to divide :(
+  int c_real = (complex1.real * complex2.real);
+  int c_imag = (complex1.imag * complex2.real) + (complex1.real * complex2.imag) + (-(complex1.imag * complex2.imag));
+  struct complex complex3 = {c_real, c_imag};
+  return complex3;
+}
+
+void display(struct complex complex){
+  printf("The sum is: %d + %di\n", complex.real, complex.imag);
+}
+
+int main(){
+
+  printf("Welcome to the complex number calculator.\n");
+  printf("Please pick a choice:\n");
+  printf("[1] Add\n");
+  printf("[2] Subtract\n");
+  printf("[3] Multiply\n");
+  printf("[4] Divide");
+  int choice;
+  int a_real;
+  int a_imag;
+  int b_real;
+  int b_imag;
+  int c_real;
+  int c_imag;
+  scanf("\n%d", &choice);
+  if(choice >= 0 && choice <= 4){
+    printf("Time to make your first complex number...\n");
+    printf("Enter your a (a + bi)");
+    scanf("\n%d", a_real);
+    printf("Enter your b (a + bi)");
+    scanf("\n%d", a_imag);
+
+    printf("\nTime to make your second complex number...\n");
+    printf("Enter your a (a + bi)");
+    scanf("\n%d", b_real);
+    printf("Enter your b (a + bi)");
+    scanf("\n%d", b_imag);
+
+    struct complex complex1 = {a_real, a_imag};
+    struct complex complex2 = {b_real, b_imag};
+    struct complex complex3;
+    if(choice == 1){ //ADDING
+      complex3 = add(complex1, complex2);
+    } else if (choice == 2){ //SUBTRACTING
+      complex3 = subtract(complex1, complex2);
+    } else if (choice == 3){ //MULTIPLY
+      complex3 = multiply(complex1, complex2);
+    } else if (choice == 4){
+      complex3 = divide(complex1, complex2);
+    }
+
+    display(complex3);
+  }
+
+
+  return 0;
+}

students.c

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+//Olivier Gabison - Finds the average of student grades
+
+#include <stdio.h>
+
+struct student {
+  char name[100];
+  int age;
+  int scores[5];
+};
+
+void avg(struct student student){
+  float average = 0;
+
+  for(int i = 0; i < 5; i++){
+    average += student.scores[i];
+  }
+  average /= 5;
+
+  printf("%s's has an average grade of %f", student.name, average);
+}
+
+int main(){
+
+  struct student s1 = {"Alex", 10, {10, 20, 15, 13, 12}};
+  struct student s2 = {"Joe", 12, {15,20,30,45,23}};
+  struct student s3  = {"Bob", 16, {12,70,70,48,25}};
+  struct student s4 = {"Victor", 18, {65,90,80,65,63}};
+  struct student s5 = {"Davis", 12, {75,80,30,65,23}};
+
+  struct student student[] = {s1, s2, s3, s4, s5};
+
+  for(int i = 0; i < 5; i++){
+    avg(student[i]);
+    printf("\n");
+  }
+
+
+}