IT1010 - Tutorial 5 - Introduction to Programming  - Solved

Question 1  
  

What is the output of the following statements?  

  

i.               printf( “%.2f\n”, 3.446);  

  

ii.            printf(“%.1f\n”, 3.446);  

  

  

Question 2  
  

Write statements to,  

  

i.                 Print the value 123.4567 with 2 digits precision.  

  

ii.              Print the value 3.14159 with three digits to the right of the decimal point.  

  

iii.            Print the value 333.546372 in a field width of 15 characters with precisions of 1,2,3,4 and 5.  

  

  

Question 3  
  

Draw a flow chart to enter the radius of a circle from the keyboard and display the diameter, the circumference and the area.  

  

Convert the above flow chart into a C program.  

  

Question 4  
  

Draw a flow chart to enter the time duration of an event in seconds and display the hrs, minutes and seconds of the duration separately.  

  

  

  

  

  

  

 

  

  

  

  

Additional Exercises  
  

Question 1  
  

a) What does the following print?  Assume x = 2  and y  = 3.  

  

i.        printf( “*\n**\n***\n****\n*****\n” );  ii.   printf( “%d”, x + x );  iii.     printf( “x = “);  iv.      printf( “x=%d”, x);  

v.       printf( “%d = %d”, x+y, y+x);  vi.     /* printf( “%d”, x+y );  */  vii.  printf(“\n”);  

                   viii.      float z = 45.567; printf(“value is %.2f”, z);  

  

  

Question 2  
  

To travel from home to SLIIT Campus, a particular student needs to take three buses. Draw a flow chart to input the fares of each bus and estimate the traveling expenditure of the student for the entire semester.   

  

Convert the above flow chart into a C program.  

    

(Assume that there are 5 days per week and 13 weeks for the semester).  

  

  

Question 3  
  

The simple interest on a loan is calculated by the formula  

  

                interest = principal * rate * days / 365  

  

  

The preceding formula assumes that  rate is the annual interest rate, and therefore includes the division by 365 (days). Develop a program that will input principal ,rate and days for several loans, and will calculate and display the simple interest for each loan  

  

 

Question 4  
  

The Body Mass Index (BMI) is given by  

  

   

  

  

Create a BMI calculator application that reads the user’s weight then calculates and displays the user’s body mass index.   

  

  

  

  

  

  

Question 5  
  

Write a C program to find the sum of series 1+2+3+4+..+n using the following formula. The program should take the value of n from the key board.  

  

Sum = n * (n+1) * (1/2)  

  

Question 6  
  

Write a program that inputs one five-digit number, separates the number into its individual digits and prints the digits separated from one another.  

Ex: if user types, 42139, the program should print   4    2    1    3    9