Skill Test

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1. Which is correct with respect to size of the datatypes?

Char > int > float

Int > char > float

Char < int < double

Double > char > int

char has lesser bytes than int and int has lesser bytes than double in any system

Explanation

char has lesser bytes than int and int has lesser bytes than double in any system

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2. What first name or nickname would you like us to use?

You may optionally provide this to label your report, leaderboard, or certificate.

2. What is the output of this C code?

```
#include 
```
```
    int main()
```
```
    {
```

        enum {ORANGE = 5, MANGO, BANANA = 4, PEACH};

```
        printf("PEACH = %d\n", PEACH);
```
```
    }
```

PEACH = 3

PEACH = 4

PEACH = 5

PEACH = 6

In enum, the value of constant is defined to the recent assignment from left.

Explanation

In enum, the value of constant is defined to the recent assignment from left.

3. What is the output of this C code?

```
    #include 
```
```
    void foo(const int *);
```
```
    int main()
```
```
    {
```
```
        const int i = 10;
```
```
        printf("%d ", i);
```
```
        foo(&i);
```
```
        printf("%d", i);
```
```
 
```
```
    }
```
```
    void foo(const int *i)
```
```
    {
```
```
        *i = 20;
```
```
    }
```

Compile time error

10 20

Undefined value

Cannot change a const type value.

Explanation

Cannot change a const type value.

4. What is the output of this C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        int a = 1, b = 1, d = 1;
```

        printf("%d, %d, %d", ++a + ++a+a++, a++ + ++b, ++d + d++ + a++);

```
    }
```

9, 6, 9

15, 4, 5

9, 3, 5

6, 4, 6

5. Does this compile without error?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        int k;
```
```
        {
```
```
            int k;
```
```
            for (k = 0; k < 10; k++);
```
```
        }
```
```
    }
```

Yes

Depends on the compiler

Depends on the C standard implemented by compilers

There can be blocks inside block and within blocks variables have only block scope.

Explanation

There can be blocks inside block and within blocks variables have only block scope.

6. What is the output of this C code?

```
    #include <stdio.h>
```
```
    void main()
```
```
    {
```
```
        int k;
```
```
        for (k = -3; k < -5; k++)
```
```
            printf("Hello");
```
```
    }
```

Run time error

Infinite hello

Nothing

Hello

7. What is the output of this C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        j = 10;
```
```
        printf("%d\n", j++);
```
```
        return 0;
```
```
    }
```

Compile time error

Variable j is not defined.

Explanation

Variable j is not defined.

8. What is the output of this C code?

```
    #include <stdio.h>
```
```
    void main()
```
```
    {
```
```
        int x = 97;
```
```
        char y = x;
```
```
        printf("%c\n", y);
```
```
    }
```

Run time error

What is the output of this C code?

 #include <stdio.h>

```
    int main()
```
```
    {
```
```
        int var = 010;
```
```
        printf("%d", var);
```
```
    }
```

010 is octal representation of 8.

Explanation

010 is octal representation of 8.

10. Which of the following declaration is not supported by C?

String str;

Char *str;

Float str = 3e2;

Both (a) and (c)

It is legal in Java, not in C.

Explanation

It is legal in Java, not in C.

11. What is the output of this C code?

```
    #include <stdio.h>
```
```
    void main()
```
```
    {
```
```
        int x = 0;
```
```
        if (x = 0)
```
```
            printf("Its zero\n");
```
```
        else
```
```
            printf("Its not zero\n");
```
```
    }
```

Its zero

Run time error

Its not zero

None

12. What is the output of this C code?

```
    #include 
```
```
    int main()
```
```
    {
```
```
        int x = 0;
```
```
        if (x++)
```
```
            printf("true\n");
```
```
        else if (x == 1)
```
```
            printf("false\n");
```
```
    }
```

Undefined behaviour

Compile time error

False

True

Thank you for your feedback!

Skill Test

1. Which is correct with respect to size of the datatypes?

2.

What first name or nickname would you like us to use?

2. What is the output of this C code?

#include

int main()

{

enum {ORANGE = 5, MANGO, BANANA = 4, PEACH};

printf("PEACH = %d\n", PEACH);

}

3. What is the output of this C code?

#include

void foo(const int );

int main()

{

const int i = 10;

printf("%d ", i);

foo(&i);

printf("%d", i);

}

void foo(const int i)

{

*i = 20;

}

4. What is the output of this C code?

#include <stdio.h>

int main()

{

int a = 1, b = 1, d = 1;

printf("%d, %d, %d", ++a + ++a+a++, a++ + ++b, ++d + d++ + a++);

}

5. Does this compile without error?

#include <stdio.h>

int main()

{

int k;

{

int k;

for (k = 0; k < 10; k++);

}

}

6. What is the output of this C code?

#include <stdio.h>

void main()

{

int k;

for (k = -3; k < -5; k++)

printf("Hello");

}

7. What is the output of this C code?

#include <stdio.h>

int main()

{

j = 10;

printf("%d\n", j++);

return 0;

}

8. What is the output of this C code?

#include <stdio.h>

void main()

{

int x = 97;

char y = x;

printf("%c\n", y);

}

9.

What is the output of this C code? #include <stdio.h>

int main()

{

int var = 010;

printf("%d", var);

}

10. Which of the following declaration is not supported by C?

11. What is the output of this C code?

#include <stdio.h>

void main()

{

int x = 0;

if (x = 0)

printf("Its zero\n");

else

printf("Its not zero\n");

}

12. What is the output of this C code?
#include
int main()
{
int x = 0;
if (x++)
printf("true\n");
else if (x == 1)
printf("false\n");
}

Skill Test

1. Which is correct with respect to size of the datatypes?

2.

What first name or nickname would you like us to use?

2. What is the output of this C code? #include int main() { enum {ORANGE = 5, MANGO, BANANA = 4, PEACH}; printf("PEACH = %d\n", PEACH); }

3. What is the output of this C code? #include void foo(const int *); int main() { const int i = 10; printf("%d ", i); foo(&i); printf("%d", i); } void foo(const int *i) { *i = 20; }

4. What is the output of this C code? #include <stdio.h> int main() { int a = 1, b = 1, d = 1; printf("%d, %d, %d", ++a + ++a+a++, a++ + ++b, ++d + d++ + a++); }

5. Does this compile without error? #include <stdio.h> int main() { int k; { int k; for (k = 0; k < 10; k++); } }

6. What is the output of this C code? #include <stdio.h> void main() { int k; for (k = -3; k < -5; k++) printf("Hello"); }

7. What is the output of this C code? #include <stdio.h> int main() { j = 10; printf("%d\n", j++); return 0; }

8. What is the output of this C code? #include <stdio.h> void main() { int x = 97; char y = x; printf("%c\n", y); }

9. What is the output of this C code? #include <stdio.h> int main() { int var = 010; printf("%d", var); }

10. Which of the following declaration is not supported by C?

11. What is the output of this C code? #include <stdio.h> void main() { int x = 0; if (x = 0) printf("Its zero\n"); else printf("Its not zero\n"); }

12. What is the output of this C code? #include int main() { int x = 0; if (x++) printf("true\n"); else if (x == 1) printf("false\n"); }

2. What is the output of this C code?

#include

int main()

{

enum {ORANGE = 5, MANGO, BANANA = 4, PEACH};

printf("PEACH = %d\n", PEACH);

}

3. What is the output of this C code?

#include

void foo(const int );

int main()

{

const int i = 10;

printf("%d ", i);

foo(&i);

printf("%d", i);

}

void foo(const int i)

{

*i = 20;

}

4. What is the output of this C code?

#include <stdio.h>

int main()

{

int a = 1, b = 1, d = 1;

printf("%d, %d, %d", ++a + ++a+a++, a++ + ++b, ++d + d++ + a++);

}

5. Does this compile without error?

#include <stdio.h>

int main()

{

int k;

{

int k;

for (k = 0; k < 10; k++);

}

}

6. What is the output of this C code?

#include <stdio.h>

void main()

{

int k;

for (k = -3; k < -5; k++)

printf("Hello");

}

7. What is the output of this C code?

#include <stdio.h>

int main()

{

j = 10;

printf("%d\n", j++);

return 0;

}

8. What is the output of this C code?

#include <stdio.h>

void main()

{

int x = 97;

char y = x;

printf("%c\n", y);

}

9.

What is the output of this C code? #include <stdio.h>

int main()

{

int var = 010;

printf("%d", var);

}

11. What is the output of this C code?

#include <stdio.h>

void main()

{

int x = 0;

if (x = 0)

printf("Its zero\n");

else

printf("Its not zero\n");

}

12. What is the output of this C code?
#include
int main()
{
int x = 0;
if (x++)
printf("true\n");
else if (x == 1)
printf("false\n");
}