Solved >   1Fill in the blanks in each of:1644817 …

1Fill in the blanks in each of the following questions.

a)A procedure for solving a problem in terms of the actions to be executed and the order in which the actions should be executed is called a(n) . ANS: algorithm.

b)Specifying the execution order of statements by the computer is called . ANS: program control.

c)All programs can be written in terms of three types of control statements: ,  and .

d)The selection statement is used to execute one action when a condition is true and another action when that condition is false.

e)Several statements grouped together in braces ({ and }) are called a(n) . ANS: compound statement.

f)The  repetition statement specifies that a statement or group of statements is to be executed repeatedly while some condition remains true. ANS: while.

g)Repetition of a set of instructions a specific number of times is called  repetition.

ANS: counter-controlled.

h)When it is not known in advance how many times a set of statements will be repeated, a(n)  value can be used to terminate the repetition. 2              Write four different C statements that each add 1 to integer variable x.

3Write a single C statement to accomplish each of the following:

a)Multiply the variable product by 2 using the *= operator.

b)Multiply the variable product by 2 using the = and * operators.

c)Test if the value of the variable count is greater than 10. If it is, print “Count is greater than 10.”

d)Calculate the remainder after q is divided by divisor and assign the result to q. Write this statement two different ways.

e)Print the value 124567 with 2 digits of precision. What value is printed?

f)Print the floating-point value 14159 with three digits to the right of the decimal point.

What value is printed?

142 is displayed.

4Write a C statement to accomplish each of the following tasks.

a)Define variables sum and x to be of type int. ANS: int sum, x;

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. ANS: printf( “The sum is: %d\n”, sum );

5 Combine the statements that you wrote in Exercise 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 increment statements. The loop should terminate when the value of x becomes 11.

6Write single C statements that

a)Input unsined integer variable x with scanf. Use the conversion specifier %u.

b)Input unsinged integer variable y with scanf. Use the conversion specifier %u.

c)Set unsinged integer variable i to 1.

d)Set unsined integer variable power to 1.

e)Multiply unsigned integer variable power by x and assign the result to power.

f)Increment variable i by 1.

g)Test i to see if it’s less than or equal to y in the condition of a while statement.

h)Output unsinged integer variable power with printf. Use the conversion specifier %u.

7 Write a C program that uses the statements in Exercise 7 to calculate x raised to the y power. The program should have a while repetition control statement.

8Identify and correct the errors in each of the following:

a)while ( c <= 5 ) {    product *= c;

b)scanf( “%.4f”, &value );

c)if ( gender == 1 )      puts( “Woman” ); else;      puts( “Man” );

9What’s wrong with the following while repetition statement (assume z has value 100), which is supposed to calculate the sum of the integers from 100 down to 1:

while ( z >= 0 )    sum += z;

10Identify 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” ); ANS:

if ( age >= 65 ) // ; removed    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;

}

int x = 1, total = 0; // total not originally initialized while ( x <= 10 ) {    total += x;

++x;

}

c)While ( x <= 100 )    total += x;

while ( x <= 100 ) { // while changed to lowercase    total += x;    ++x;

} // } added

d)while ( y > 0 ) {    printf( “%d\n”, y );

++y;

}

 

 

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