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  1. /*** These are the solutions to the C++ practicals given to us. Feel free to copy and run the code on your systems, but make
  2. sure to choose different values as your input at runtime and if possible interchange the variable names.  
  3.  
  4. Please if you notice any bugs or errors kindly let me know.
  5.  
  6. NB: Will try to finish up the remaining weeks ASAP.
  7.  
  8. Author: Isaac Adepitan Oluwatoyin
  9. Mail: isaacadepitan@gmail.com
  10. ***/
  11.  
  12. Week 1 Solution
  13. //Program to calculate 25% payrise of employees for 7 months
  14. #include <iostream>
  15. using namespace std;
  16. int main ()
  17. {
  18. float asalary, msalary, bdpay, bdpay7;
  19. float payrise = 0.25;
  20.  
  21. cout << "Enter your Total Salary for last year" << endl;
  22. cin >> asalary;
  23.  
  24. msalary = asalary / 12;
  25. cout << "Your monthly salary is: " << msalary << endl;
  26.  
  27. bdpay = msalary * payrise;
  28. cout << "Your total 25% increase per month is: " << bdpay << "%" << endl;
  29.  
  30. bdpay7 = 7 * (msalary + bdpay);
  31. cout << "Your total 25% increase for 7 months is: " << bdpay7 << "%" << endl;
  32.  
  33. return 0;
  34. }
  35.  
  36.  
  37. Week 2 Solution
  38. //Program to Calculate Principal and Interest rate for three years
  39. #include <iostream>
  40. using namespace std;
  41. int main()
  42. {
  43.     float principal, ainterest, interesty1, interesty2, interesty3;
  44.     float arate = 0.1475;
  45.  
  46.     cout << "Enter the principal amount you invested: " << endl;
  47.     cin >> principal;
  48.  
  49.     ainterest = principal * arate;
  50.     cout << "Your Annual interset is: " << ainterest << endl;
  51.  
  52.     interesty1 = principal + ainterest;
  53.     cout << "The Balance for Year 1 is: " << interesty1 << endl;
  54.  
  55.     interesty2 = interesty1 + ainterest;
  56.     cout << "The Balance for Year 2 is: " << interesty2 << endl;
  57.  
  58.     interesty3 = interesty2 + ainterest;
  59.     cout << "The Balance for Year 3 is: " << interesty3 << endl;
  60.  
  61.     cout << "The Amount Invested was: " << principal << endl;
  62.     cout << "The Total Balance for Three Years is: " << interesty3 << endl;
  63.  
  64.     return 0;
  65. }
  66.  
  67.  
  68. Week 5 Solution
  69. //Program to find the sum and product of two numbers
  70. #include <iostream>
  71. using namespace std;
  72. int main()
  73. {
  74.     int a, b, sum, product;
  75.     cout << "Enter First Integer NUmber: ";
  76.     cin >> a;
  77.     cout << "Enter Second Integer NUmber: ";
  78.     cin >> b;
  79.     sum = a + b;
  80.     product = a * b;
  81.     cout << "The Sum of " << a << "+" << b << "=" << sum << endl;
  82.     cout << "The Product " << a << "*" << b << "=" << product << endl;
  83.     return 0;
  84. }
  85.  
  86.  
  87.  
  88. Week 6(a) Solution
  89. //Program to Welcome Lecturer to Class
  90. #include <iostream>
  91. using namespace std;
  92. int main()
  93. {
  94.     cout << "Welcome to Class Mr. Sokunbi" << endl;
  95.  
  96. }
  97.  
  98.  
  99. Week 6(b) Solution
  100. //Program to print Hello World
  101. #include <iostream>
  102. using namespace std;
  103. int main()
  104. {
  105.     cout << "Hello World" << endl;
  106.     return 0;
  107. }
  108.  
  109.  
  110. Week 7(Method 1) Solution
  111. //Program to compute the average of four examination scores
  112. #include <iostream>
  113. using namespace std;
  114. int main()
  115. {
  116.     int a, b, c, d, sum, avg;
  117.     cout << "Enter four exam scores:" << endl;
  118.     cin >> a >> b >> c >> d;
  119.     sum = a + b + c + d;
  120.     avg = sum / 4;
  121.     cout << "The Average Score is: " << avg << endl;
  122.     return 0;
  123. }
  124.  
  125. Week 7(Method 2) Solution
  126. //Program to compute the average of four examination scores
  127. #include <iostream>
  128. using namespace std;
  129. int main()
  130. {
  131.     int i,x, sum = 0; int n = 4;
  132.     int  avg;
  133.  
  134.     for(i=1; i <= n; i++)
  135.     {
  136.         cout << "Enter Exam Score " << i << endl;
  137.         cin >> x;
  138.         sum +=x;
  139.     }
  140.     avg = sum / n;
  141.     cout << "The sum is: " << sum << endl;
  142.     cout << "The Average is: " << avg << endl;
  143.     return 0;
  144.    
  145. }
  146.  
  147.  
  148. Week 8(a) Solution
  149. //Program to compute the distance of the Arch of a circle
  150. #include <iostream>
  151. using namespace std;
  152. int main()
  153. {
  154.     float radius, value, arch_length;
  155.     cout << "Input the Radius: " << endl;
  156.     cin >> radius;
  157.     cout << "Input the Value: " << endl;
  158.     cin >> value;
  159.     arch_length = 6.28 * radius * (value/360);
  160.     cout << "The Length of Arch is: " << arch_length << endl;
  161.     return 0;
  162. }
  163.  
  164. Week 8(b) Solution
  165. //Program to Convert Temperature from Celcuis to Farenheit
  166. #include <iostream>
  167. using namespace std;
  168. int main()
  169. {
  170.     int temp, farenheit;
  171.     cout << "Input Temperature in Celcuis: ";
  172.     cin >> temp;
  173.     farenheit = 1.8 * temp + 32;
  174.     cout << "The Temperature in Farenheit is: " << farenheit << endl;
  175.     return 0;
  176. }
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