3.4 Write a C statement to accomplish each of the following tasks. a) Define var

Question

3.4 Write a C statement to accomplish each of the following tasks. a) Define variables sum and x to be of type int. b) Set variable x to 1. c) Set variable sum to 0. d) Add variable x to variable sum and assign the result to variable sum. e) Print " The sum is: " followed by the value of variable sum. 3.10 (or 3.11 for 6th edition) Identify and correct the errors in each of the following. [ Note: There may be more than one error in each piece of code.] a) if ( age >= 65 ); puts( " Age is greater than or equal to 65" ); else puts( " Age is less than 65" ); b) int x = 1, total; while ( x <= 10 ) { total += x; ++ x; } c) While ( x <= 100 ) total += x; ++ x; d) while ( y > 0 ) { printf( "% d n", y ); ++ y; } Program: 3.5: Combine the statements that you wrote in Exercise 3.4 into a program that calculates the sum of the integers from 1 to 10. Use the while statement to loop through the calculation and in-crement statements. The loop should terminate when the value of x becomes 11.

Explanation / Answer

3.4)
   #include<stdio.h>
  
   int main (int argc, char *argv[])
   {
      //a
      int sum, x;
      //b
      x = 1;
      //c
      sum = 0;
      //d
      sum = sum + x;
      //e
      printf("The sum is: %d ", sum);
  
      return 0;
   }

3.10)

   #include<stdio.h>
  
   int main (int argc, char *argv[])
   {
      //a)
      if ( age >= 65 );
           puts( " Age is greater than or equal to 65" );
      else
       puts( " Age is less than 65" );
  
      //b)
      int x = 1, total = 0;
      while ( x <= 10 ) { // here is problem, total is not initialized, so initially it contains garbage value
          total += x;        // so it will not produce correct result
          ++ x;
       }
      
      //c)
      While ( x <= 100 ) {
       total += x;
       ++ x;   // here is problem, ++x, this is not part of while loop, so value of x will not increase and end with infinite loop
       }
      //d)
      while ( y > 0 ) {
       printf( "% d n", y );
       ++ y;
       }
  
      return 0;
   }

3.5)

   #include<stdio.h>
  
   int main (int argc, char *argv[])
   {
      //a
      int sum, x;
      //b
      x = 1;
      //c
      sum = 0;
      //d
      while(x <= 10){ // code to sum upto x=10
       sum = sum + x;
       x++;
       }
      //e
      printf("The sum is: %d ", sum);
  
      return 0;
   }

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.