Example no. 3, page 92

#include<stdio.h>
#include<conio.h>
#define s scanf
#define p printf
int main()
{
    int m, n;
    for(m =2; m <=4; m++)
    for(n = 5; n >= 3; n--)
    p("%d\n", m + n);
    getch();
    return 0;
}

Example no. 2, page 92 output

#include<stdio.h>
#include<conio.h>
#define s scanf
#define p printf

int main()
{
    int m, n, z, h;
    m= 6;
    n= 0;
    for(h =1; h <= m; h++)
    {
          z = 2 * h ;
          n = n + 3;
          p("H = %d\n", h);
          p("z = %d\n", z);
          p("n = %d\n", n;
         
          }
          getch();
          return 0;
     }

IF Statement (Number 9)

Write a program that will display "IT'S COLD!" if the temperature is less than 20, "IT'S HOT!" if the temperature is greater than 30, "COOL CLIMATE!" otherwise.


     #include<stdio.h>
     #include<conio.h>
     #define p printf
     #define s scanf

     int main()
     {
         int T;
  
         p("Enter temperature: ");
         s("%d",&T);
  
              if ( T < 20 )
                  {
                  p("IT'S COLD!");
                  }
             else
             if ( T > 30 )
                 {
                 p("IT'S HOT!");
                 }
            else
                {
                p("COOL CLIMATE!");
                }
       getch ();
       return 0;
    }  

IF Statement (Number 11)

Write a program to determine the equivalent grade of each student in a class as follows:


      a. Read in the student's name, midterm grade, minor B, and final exam ratings.
      b. Determine the final grade of the student by formula:
          final grade = 0.30 of midterm grade + 0.10 of minor B + 0.60 of final exam.
      c. Determine the equivalent grade for the numerical value obtained by the following grading marks:


                    98 - 100 = 4.00
                    95 - 97 = 3.75
                    92 - 94 = 3.50
                    89 - 91 = 3.25
                    86 - 88 = 3.00
                    83 - 85 = 2.75
                    80 - 82 = 2.50
                    77 - 79 = 2.25
                    74 - 76 = 2.00
                    71 - 73 = 1.75
                    68 - 70 = 1.50                   
                    64 - 67 = 1.25
                    60 - 63 = 1.00                   
                    below 60= 0.00
  
(Solution)


     #include<stdio.h>
     #include<conio.h>
     #define p printf
     #define s scanf


     int main()
     {
         int MidG, MinB, Fin;
         float FG;
         char SN;
  
         p("Enter student's name: ");
         s("%s",&SN);
         p("Enter midterm grade: ");
         s("%d",&MidG);
         p("Enter minor B: ");
         s("%d",&MinB);
         p("Enter final exam: ");
         s("%d",&Fin);
  
         fg = ( MidG * .30 ) + ( MinB * .10 ) + ( Fin * .60 );
         p("Your final grade is %.2f or equivalent to ",FG);
  
              if( FG >= 98 && FG <= 100)
                  {
                  p("4.00");
                  }
              else
              if( FG >= 95 && FG <= 97)
                  {
                  p("3.75");
                  }
              else
              if( FG >= 92 && FG <= 94)
                  {
                  p("3.50");
                  }
              else
              if( FG >= 89 && FG <= 91)
                  {
                  p("3.25");
                  }
              else
              if( FG >= 86 && FG <= 88)
                  {
                  p("3.00");
                  }
              else
              if( FG >= 83 && FG <= 85)
                  {
                  p("2.75");
                  }
              else
              if( FG >= 80 && FG <= 82)
                  {
                  p("2.50");
                  }
              else
              if( FG >= 77 && FG <= 79)
                  {
                  p("2.25");
                  }
              else
              if( FG >= 74 && FG <= 76)
                  {
                  p("2.00");
                  }
              else
              if( FG >= 71 && FG <= 73)
                  {
                  p("1.75");
                  }
              else
              if( FG >= 68 && FG <= 70)
                  {
                  p("1.50");
                  }
              else
              if( FG >= 64 && FG <= 67)
                  {
                  p("1.25");
                  }
              else
              if( FG >= 60 && FG <= 63)
                  {
                  p("1.00");
                  }
              else
                  {
                  p("0.00");
                  }
         getch ();
         return 0;
      }

IF Statement (Age)

Write a program that will display "Pretty Young" if age is lesser than 18,
and will display "You Old" if age is  greater than 18.


(Solution)




#include<stdio.h>
   #include<conio.h>

   int main()
   {
          int AGE;
     
          printf("Enter age:");
          scanf("%d",&AGE);
   
          if ( AGE <= 18 )
         {
               printf("Pretty Young!");
         }
         else    
        {
               printf("Your Old!");
       }
       getch();
       return 0;
}

IF Statement (Number 10)

Write a program that gives discount of 100 pesos to a costumer if shirt bought is XL and the price is greater than 500; a discount of 50 pesos if the shirt bought is large and the price is greater than 400.


 
(Solution)

#include<stdio.h>
#include<conio.h>
#define s scanf
#define p printf

int main()
{
    int PRICE, EKS;

    p("Choices:\n");
    p("1.] XL\n");
    p("2.] L\n");


    p("Enter T-Shirt Size: ");
    s("%d", &EKS);



    switch(EKS)

    {
    case 1:
   
         p("Enter Price: ");
         s("%d", &PRICE);
   
         if(PRICE>= 500)
     
         p("You Have Discount 100!");
   
         break;
   
   
   
   
    case 2:
              p("Enter Price: ");
              s("%d", &PRICE);
         
              if(PRICE >= 400)
         
              p("You have Discount 50!");
         
              break;
         
   
         default:
                  p("thank you!");
             
                  break;
                  }
         getch();
         return 0;
         }

IF Statement(Grade)

Write a program that will input a student's grade and will display
"Congratulations you PASSED!" if the student's grade is greater than or equal 60. Otherwise "Sorry you FAILED!".
 

#include<stdio.h>
#include<conio.h>
#define p printf
#define s scanf
int GRADE;
int main( )
{


    p("Enter Grade of Student:");
    s("%d",&GRADE);
    if(GRADE >= 60)
    p("Congratulations you PASSED!");
    else
    p("Sorry you FAILED!");
    getch();
    return 0;
}

Even numbers being looped(iteraive)

Write a program that asks the user to enter a number n and display the first even numbers. Example: if n=5, the first 5 even numbers are 2, 4, 6, 8 and 10. 


(Solution)

#include<stdio.h>
#include<conio.h>

int main( )
{
   int ONE, TWO;
   printf("Enter Number: ");
   scanf("%d",&TWO);
   for (ONE=0; ONE<=TWO; ONE+=2)
     {
          printf ("%d\n",ONE);
      }

getch( );
return 0;
}

Odd Numbers Being Looped(Iterative)

Write a program that asks the user to enter a number n and display the first odd numbers. Example: if n=5, the first 5 even numbers are 1, 3, 5, 7 and 9.

(Solution)

#include<stdio.h>

#include<conio.h>

#define s scanf

#define p printf

int main( )

{

          int M, N, O;

          p("Enter number amount of odd: ");

          s("%d", &N);

          

          for(M=1; M<=N; M++)

          {

                  O = M + M - 1;

                  p("%d\n", O);

           }

getch( );

}