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Problem Solving Through Programming In C NPTEL Assignment Answers Week 2
Q1. A function is
a. Block of statements to perform some specific task
b. It is a fundamental modular unit to perform some task
c. It has a name and can be used multiple times
d. All of the above
Answer: d. All of the above
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Q2. If an integer needs two bytes of storage, then the minimum value of a signed integer in C would be
a. -(216-1)
b. 0
c. -(215-1)
d. -215
Answer:- d. -215
Q3. Which of the following statements is correct?
i. Keywords are those words whose meaning is already defined by Compiler.
ii. Keywords cannot be used as variable names.
iii. There are 32 keywords in C
iv. C keywords are also called reserved words
a. (i) and (ii)
b. (ii) and (iii)
c. (i), (ii), and (iv)
d. All of the above
Answer: d. All of the above
Q4. What will be the output?
#include <stdio.h>
int main() {
int x = 1, y = 3;
int t=x;
x=y;
y=t;
printf("%d %d",x,y);
return 0;
}a. 1 3
b. 3 1
c. 1 1
d. 3 3
Answer: b. 3 1
Q5. When executed the following code will print _______.
#include <stdio.h>
int main() {
int sum=3+6/2+6*2;
printf("%d",sum);
return 0;
}Answer: 18
Q6. Which of the following are not standard header files in C?
a. stdio.h
b. conio.h
c. string.h
d. All are standard header file
Answer: d. All are standard header file
Q7. What is the output of the following code?
#include <stdio.h>
#define fun(x) (x*x-x)
void main(){
float i;
i=37.0/fun(2);
printf("%.2f",i);
}Answer: 18.50
Q8. Which of the following is not a C variable?
a. Var123
b. Var_123
c. 123Var
d. X_123_Var
Answer: c. 123Var
Q9. What is the output of the following program?
#include <stdio.h>
#define a 6
int main()
{
int a=3;
a=a+1;
printf("%d",a);
return 0;
}a. 6
b. 3
c. 4
d. Compilation error
Answer: d. Compilation error
Q10. The following C program swaps the value of two numbers without using any third variable. What are the correct operations that need to be inserted inside the blanks?
#include <stdio.h>
int main()
{
int a=2, b=3;
printf("The values before swapping a = %d, b=%d", a, b);
______; _______; _______;
printf("The values after swapping a=%d, b=%d", a, b);
return 0;
}a. a=a-b; b=a-b; a=a+b;
b. a=a%b; b=a+b; a=a/b;
c. a=a+b; b=a-b; a=a-b;
d. None of the above
Answer: c. a=a+b; b=a-b; a=a-b;
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Problem Solving Through Programming In C NPTEL Assignment Answers Week 1
