TCS Ninja Loops Quiz-1

Question 1

Time: 00:00:00
The output of the code below is
#include <stdio.h>
int a;
void main()
{
if (a)
printf(“Hello”);
else
printf(“world”);
}

Hello

Hello

World

World

compile time error

compile time error

none

none

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compile time error

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Question 2

Time: 00:00:00
The output of the code below is

#include <stdio.h>
void main()
{
int a = 5;
if (true);
printf(“hello”);
}

It will display hello

It will display hello

It will throw an error

It will throw an error

No Output

No Output

Depends on Compiler

Depends on Compiler

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true is not a keyword in C. So it gives error.

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Question 3

Time: 00:00:00
The output of the code below is
#include <stdio.h>
void main()
{
int a = 0;
if (a == 0)
printf(“hi”);
else
printf(“how are u”);
printf(“hello”);
}

hi

hi

how are you

how are you

hello

hello

hihello

hihello

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Question 4

Time: 00:00:00
The following code ‘for(;;)’ represents an infinite loop. It can be terminated by.

break

break

exit(0)

exit(0)

abort()

abort()

all of the mentioned

all of the mentioned

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Question 5

Time: 00:00:00
The correct syntax for running two variable for loop simultaneously is.

a) for (i = 0; i < n; i++) for (j = 0; j < n; j += 5)

a) for (i = 0; i < n; i++) for (j = 0; j < n; j += 5)

for (i = 0, j = 0;i < n, j < n; i++, j += 5)

for (i = 0, j = 0;i < n, j < n; i++, j += 5)

for (i = 0; i < n;i++){}

for (i = 0; i < n;i++){}

for (j = 0; j < n;j += 5){}

for (j = 0; j < n;j += 5){}

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Question 6

Time: 00:00:00
Which for loop has range of similar indexes of ‘i’ used in for (i = 0;i < n; i++)?

for (i = n; i>0; i–)

for (i = n; i>0; i–)

for (i = n; i >= 0; i–)

for (i = n; i >= 0; i–)

for (i = n-1; i>0; i–)

for (i = n-1; i>0; i–)

for (i = n-1; i>-1; i–)

for (i = n-1; i>-1; i–)

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Question 7

Time: 00:00:00
The output of this C code is?

#include <stdio.h>
void main()
{
int x = 0;
for (x < 3; x++)
printf(“Hello”);
}

Compile time error

Compile time error

Hello is printed thrice

Hello is printed thrice

Nothing

Nothing

Varies

Varies

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Question 8

Time: 00:00:00
The output of this C code is?

#include <stdio.h>
void main()
{
double x = 0;
for (x = 0.0; x < 3.0; x++)
printf(“Hello”);
}

Run time error

Run time error

Hello is printed thrice

Hello is printed thrice

Hello is printed twice

Hello is printed twice

Hello is printed infinitely

Hello is printed infinitely

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Question 9

Time: 00:00:00
The output of this C code is?

#include <stdio.h>
int main()
{
do
printf(“Inside while loop “);
while (0);
printf(“Outside loop\n”);
}

Inside while loop

Inside while loop

Inside while loop Outside loop

Inside while loop Outside loop

Outside loop

Outside loop

Infinite loop

Infinite loop

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Question 10

Time: 00:00:00
The output of this C code is?

#include <stdio.h>
int main()
{
int i = 0;
do {
i++;
printf(“Inside while loop\n”);
} while (i < 3);
}

Inside while loop

Inside while loop

Outside while loop

Outside while loop

Depends on the compiler

Depends on the compiler

Compile time error

Compile time error

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Question 11

Time: 00:00:00
Which of the following cannot be used as LHS of the expression in for (exp1 ;exp2 ; exp3) ?

Variable

Variable

Function

Function

typedef

typedef

macros

macros

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Question 12

Time: 00:00:00
Which keyword can be used for coming out of recursion?

break

break

return

return

exit

exit

Both break and return

Both break and return

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Question 13

Time: 00:00:00
The keyword ‘break’ cannot be simply used within:

do-while

do-while

if else

if else

for

for

while

while

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Question 14

Time: 00:00:00
Which keyword is used to come out of a loop only for single iteration?

break

break

continue

continue

return

return

none

none

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Question 15

Time: 00:00:00
The output of this C code is?

#include <stdio.h>
void main()
{
int i = 0;
if (i == 0)
{
printf(“Hello”);
break;
}
}

Hello is printed infinite times

Hello is printed infinite times

Hello

Hello

Varies

Varies

Compile Time Error

Compile Time Error

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["0","40","60","80","100"]
["Need more practice!","Keep trying!","Not bad!","Good work!","Perfect!"]

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