NPTEL Problem Solving Through Programming in C Week 8 Quiz Assignment | NPTEL Swayam Assignment Answers
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Q.1: What will be the output?
#include <stdio.h>
int main( )
{
int a = 70:
{
}
printf("%d", a);
}
return 0:
}
Options are:
a) 70
b) Garbage value
c) Compilation error
d) None
Answer is: (c) Compilation error
Q.2: Which of the following statements are correct in C?
a) A function with the same name cannot have different signatures
b) A function wish the same name cannot have different return types
c) A function with the same name cannot have a different number of parameters
d) All of the mentioned
Options are:
a) Option (a)
b) Option (b)
c) Option (c)
d) Option (d)
Answer is: Option (d) All of the mentioned
Q.3: What will the function return?
int func(int x, int y)
{
if ( y ==0) return 0;
if ( y ==1) return x;
return x+func (x, y - 1) ;
}
Options are:
a) x ^ * y where x and y are integers
b) x ^ * y where x and y are non-negative integers
c) x + y where x and y are integers
d) x + y where x and y are non-negative integers
Answer is: (b) x ^ * y where x and y are non-negative integers
Q.4: What is the output of the following C program?
#include <stdio.h>
void foo(), f():;
int main()
{
f();
return 0;
}
void foo()
{
printf("2");
}
void f()
{
printf("1 ");
foo();
}
Options are:
a) Compiler error as foo() is not declared in main
b) 1 2
c) 2 1
d) Compile time error due to declaration of functions inside main
Answer is: (b) 1 2
Q.5: What will be the output?
#include <stdio.h>
int main()
{
switch(printf("C"))
{
default:
printf("Default");
case 1: printf("Choice1");
break;
case 2: printf("Choice2");
break;
}
return 0;
}
Options are:
a) Choice1
b) CChoice1
c) DefaultChoice1
d) CChoice1Choice2
Answer is: (b) CChoice1
Q.6: What will be the output of the C code?
#include <stdio.h>
int main()
{
char x=0;
for(x=0; x<=127; x++)
{
printf("%d ", x);
}
return 0;
}
Options are:
a) Compilation error
b) 0, 1, 2 …….., 127
c) 0, 1, 2, …….., 127, -128, -127,…infinite loop
d) 1, 2, 3…….,127
Answer is: (c) 0, 1, 2, …….., 127, -128, -127,…infinite loop
Q.7: What is the output of the following C program?
#include <stdio.h>
int fun(int n)
{
int i, j, sum = 0;
for(i = 1; i<=n; i++)
for(j=i; j<=i; j++)
sum = sum + j;
return(sum):
}
int main()
{
printf("%d", fun(10));
return 0;
}
Options are:
a) 55
b) 45
c) 66
d) 10
Answer is: (a) 55
Q.8: Consider the function
find(int x, int y)
{
return((x<y)? 0 : (x-y));
}
Let a and b be two non-negative integers. The call find(a, find(a, b)) can be used to find the
Options are:
a) Maximum of a, b
b) Positive difference between a and b
c) Sum of a and b
d) Minimum of a and b
Answer is: (d) Minimum of a and b
Q.9:
int fibonacci (int n)
{
switch (n)
{
default:
return (fibonacci(n-1)+ fibonacci(n-2));
case 1:
case 2:
}
return 1;
The function above has a flaw that may result in a serious error during some invocations. Which one of the following describes the deficiency illustrated above?
Options are:
(a) For some values of n, the environment will almost certainly exhaust its stack space before the calculation completes.
(b) An error in the algorithm causes unbounded recursion for all values of n.
(c) A break statement should be inserted after each case. Fall-through is not desirable here.
(d) The fibonacci() function includes calls to itself. This is not directly supported by Standard C due to its unreliability.
Answer is: (a) For some values of n, the environment will almost certainly exhaust its stack space before the calculation completes.
Q.10: What is the output of the C code given below
#include <stdio.h>
float func(float age[ ]);
int main()
{
float result, age[] = {23.4, 55, 22.6, 3, 40.5, 18};
result = func(age);
printf("Result is=%0.2f", result):
return 0;
}
float func(float age[ ])
{
int i;
float result, sum = 0.0;
for (i=0; i<6; ++i)
{
sum += age[i];
}
result = (sum/6);
return result;
}
Answer is: 27.08
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