_______

  c1

_______

/* arr_pass.c*/
#define COUNT 31
main()
{
     int temps[COUNT];
     int index, total;
     float celsius;
     total=0.0;
     /*load the array with values */
     for(index=0; index < COUNT; index++)
     {
          printf("Enter temperature #%d:", index);
          scanf("%d",&temps[index]);
     }
     /* pass array to convert */
     convert(temps);
     }
     /*convert function*/
     convert(heat)
     int heat[];
     {
          int index;
          float celsius;
          for(index=0; index <COUNT; index++)
          {
            celsius = (5.0/9.0)*(heat[index]-32); 
            printf("%d\t\t%6.2f\n",heat[index], celsius);
          }
     }/* array1.c*/
main()
{
     int temps[31];
     int index, total;
     float average, celsius;
     total=0.0;
     /*load the array with values */
     for(index=0; index < 31; index++)
     {
          printf("Enter temperature #%d:", index);
          scanf("%d",&temps[index]);
     }

     /* read the values to average */
     for(index=0; index < 31; index++)
          total+=temps[index];
     average=total/31.0;
     printf("average is: %f\n\n", average);
     puts("Fahrenheit\tCelsius\n\n");

     /* read the values to convert */
     for(index=0; index < 31; index++)
     {
                 celsius = (5.0/9.0)*(temps[index]-32); 
                 printf("%d\t\t%6.2f\n",temps[index], celsius);
     }
}
/* ascii.c */
main()
{
     int letter;
     letter=getchar();
     printf("The ASCII code of %c is %d\n",letter,letter);
}

/* average.c */
main()
{
     float number_1, number_2, number_3, average;
     printf("Enter the first number: ");
     scanf("%f", &number_1);
     printf("Enter the second number: ");
     scanf("%f", &number_2);
     printf("Enter the third number: ");
     scanf("%f", &number_3);
     average = number_1 + number_2 + number_3 / 3;
     printf("The average is %f", average);
}

/* average1.c */
main()
{
     float number, total, count, average;
     total = 0.0;
     count = 0.0;
     printf("Enter the first number: ");
     scanf("%f", &number);
     total += number;
     ++count;
     printf("Enter the second number: ");
     scanf("%f", &number);
     total += number;
     ++count;
     printf("Enter the third number: ");
     scanf("%f", &number);
     total += number;
     ++count;
     average = total/ count;
     printf("The average is %f", average);
}

/* brackets.c */
main()
{
     float income;
     printf("Enter your income: ");
     scanf("%f", &income);
     if (income < 20000.00)
          puts("Your tax rate is 15%");
     else
          if (income < 100000.00)
               puts("Your tax rate is 22%");
          else
               puts("Your tax rate is 35%");
}     main()
     {
     char names[20][20], street[20][20], city[20][20];
     char state[20][3], zip[20][6], phone[20][13], lookfor[20];
     int count;
     for(count=0;count<20;count++)
     {
     puts("Enter a name, first name first");
     gets(names[count]);
     puts("Enter the street address");
     gets(street[count]);
     puts("Enter the city");
     gets(city[count]);
     puts("Enter the state");
     gets(state[count]);
     puts("Enter the zipcode");
     gets(zip[count]);
     puts("Enter the phone numnber");
     gets(phone[count]);
     }
     }
     main()
     {
     char names[20][20], street[20][20], city[20][20];
     char state[20][3], zip[20][6], phone[20][13], lookfor[20];
     int count;
     for(count=0;count<20;count++)
     {
     puts("Enter a name, first name first: ");
     gets(names[count]);
     puts("Enter the street address: ");
     gets(street[count]);
     puts("Enter the city: ");
     gets(city[count]);
     puts("Enter the state: ");
     gets(state[count]);
     puts("Enter the zipcode: ");
     gets(zip[count]);
     puts("Enter the phone numnber: ");
     gets(phone[count]);
     }
     puts("Enter name to look for: ");
     gets(lookfor);
     for(count=0; count<20;count++)
     {
     if(strcmp(names[count],lookfor)==0)
          printf("%s %s\n", names[count], phone[count]);
     }
     }
     main()
     {
       char name[25];
       char telephone[12];
       printf("Please enter your name: ");
       gets(name);
       printf("Please enter your telephone number: ");
       gets(telephone);
       printf("Name: %s    Phone number: %s", name, telephone);
     }main()
               {
       int num_1, num_2, num_3;
       printf("Please enter the first integer number: ");
       scanf("%d", &num_1);
       printf("Please enter the second integer number: ");
       scanf("%d", &num_2);
       printf("Please enter the third integer number: ");
       scanf("%d", &num_3);
       printf("3: %d   2: %d   1: %d", num_3, num_2, num_1);
     }
     main()
     {
     char  first[10], last[15];
     char  initial;
     int   age;
     printf("Enter your first name: ");
     gets(first);
     printf("Enter your midle initiall: ");
     initial = getchar();
     putchar('\n');
     printf("Enter your last name: ");
     gets(last);
     printf("Enter your age: ");
     scanf("%d", &age);
     printf("Name: %s %c %s\n", first, initial, last);
     printf("Age: %d", age);
     }

     main()
     {
     int  year, age, togo;
     printf("Enter the year, as in 1993: ");
     scanf("%d", &year);
     printf("Enter your age as a whole number: ");
     scanf("%d", &age);
     togo = 2000 - year + age;
     printf("In the year 2000 you will be %d years old", togo);
     }
     main()
     {
     int number;
     printf("Enter a number: ");
     scanf("%d", &number);
     if(number < 0)
       puts("The number is negative");
       else
        if(number > 0 && number < 51)
        puts("The number is between 0 and 50");
        else
         if(number > 50 && number <= 101)
         puts("The number is between 51 and 100");
         else
           if(number > 101 && number < 151)
           puts("The number is between 101 and 150");
           else
            puts("The number is above 150");
     }