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

Hello is printed infinite times

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

Segmentation fault/runtime crash

void * malloc(size_t n) returns

Pointer to n bytes of uninitialized storage

NULL if the request cannot be satisfied

C -Program Test-VAC-28.10.23

Quiz

•

Computers

•

University

•

Practice Problem

•

Hard

Vasu Devan

Used 1+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

#include <stdio.h>
int main()
    {
        int a[5] = {1, 2, 3, 4, 5};
        int i;
        for (i = 0; i < 5; i++)
            if ((char)a[i] == '5')
                printf("%d\n", a[i]);
            else
                printf("FAIL\n");
    }

The compiler will flag an error

Program will compile and print the output 5

Program will compile and print the ASCII value of 5

Program will compile and print FAIL for 5 times

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

    #include <stdio.h>
    int main()
    {
        printf("%d ", 1);
        l1:l2:
        printf("%d ", 2);
        printf("%d\n", 3);
    }

Compilation error

123

12

13

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The format identifier ‘%i’ is also used for _____ data type?

char

int

float

double

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

#include <stdio.h>
    int main()
    {
        enum {ORANGE = 5, MANGO, BANANA = 4, PEACH};
        printf("PEACH = %d\n", PEACH);
    }

PEACH = 3

PEACH = 4

PEACH = 5

PEACH = 6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

.     #include <stdio.h>
void main()
    {
        float x = 0.1;
        if (x == 0.1)
            printf("Sanfoundry");
        else
            printf("Advanced C Classes");
    }

Advanced C Classes

Sanfoundry

Run time error

compile time error

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

#include <stdio.h>
    void main()
    {
        float x;
        int y;
        printf("enter two numbers \n", x);
        scanf("%f %f", &x, &y);
        printf("%f, %d", x, y);
    }
a) 7.000000, 7
b) Run time error
c) 7.000000, junk
d) Varies

7.000000, 7

Run time error

7.000000, junk

Varies

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

#include <stdio.h>
    void main()
    {
        int x = 97;
        char y = x;
        printf("%c\n", y);
    }
a) a
b) b
c) 97
d) Run time error

a

b

97

Run time error

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C -Program Test-VAC-28.10.23

25 questions

#include <stdio.h>
int main()
    {
        int a[5] = {1, 2, 3, 4, 5};
        int i;
        for (i = 0; i < 5; i++)
            if ((char)a[i] == '5')
                printf("%d\n", a[i]);
            else
                printf("FAIL\n");
    }

#include <stdio.h>
    int main()
    {
        printf("%d ", 1);
        l1:l2:
        printf("%d ", 2);
        printf("%d\n", 3);
    }

The format identifier ‘%i’ is also used for _____ data type?

#include <stdio.h>
    int main()
    {
        enum {ORANGE = 5, MANGO, BANANA = 4, PEACH};
        printf("PEACH = %d\n", PEACH);
    }

.     #include <stdio.h>
void main()
    {
        float x = 0.1;
        if (x == 0.1)
            printf("Sanfoundry");
        else
            printf("Advanced C Classes");
    }

#include <stdio.h>
    void main()
    {
        float x;
        int y;
        printf("enter two numbers \n", x);
        scanf("%f %f", &x, &y);
        printf("%f, %d", x, y);
    }
a) 7.000000, 7
b) Run time error
c) 7.000000, junk
d) Varies

#include <stdio.h>
    void main()
    {
        int x = 97;
        char y = x;
        printf("%c\n", y);
    }
a) a
b) b
c) 97
d) Run time error

.     #include <stdio.h>
    void main()
    {
        m();
        printf("%d", x);
    }
    int x;
    void m()
    {
        x = 4;
    }
a) 4
b) Compile time error
c) 0
d) Undefined

.     #include <stdio.h>
    #define SYSTEM 20
    int main()
    {
        int a = 20;
        #if SYSTEM == a
        printf("HELLO ");
        #endif
        #if SYSTEM == 20
        printf("WORLD\n");
        #endif
    }
a) HELLO
b) WORLD
c) HELLO WORLD
d) No Output

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

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C -Program Test-VAC-28.10.23

25 questions

#include <stdio.h>int main() { int a[5] = {1, 2, 3, 4, 5}; int i; for (i = 0; i < 5; i++) if ((char)a[i] == '5') printf("%d\n", a[i]); else printf("FAIL\n"); }

#include <stdio.h> int main() { printf("%d ", 1); l1:l2: printf("%d ", 2); printf("%d\n", 3); }

The format identifier ‘%i’ is also used for _____ data type?

#include <stdio.h> int main() { enum {ORANGE = 5, MANGO, BANANA = 4, PEACH}; printf("PEACH = %d\n", PEACH); }

. #include <stdio.h>void main() { float x = 0.1; if (x == 0.1) printf("Sanfoundry"); else printf("Advanced C Classes"); }

#include <stdio.h> void main() { float x; int y; printf("enter two numbers \n", x); scanf("%f %f", &x, &y); printf("%f, %d", x, y); }a) 7.000000, 7b) Run time errorc) 7.000000, junkd) Varies

#include <stdio.h> void main() { int x = 97; char y = x; printf("%c\n", y); }a) ab) bc) 97d) Run time error

. #include <stdio.h> void main() { m(); printf("%d", x); } int x; void m() { x = 4; }a) 4b) Compile time errorc) 0d) Undefined

. #include <stdio.h> #define SYSTEM 20 int main() { int a = 20; #if SYSTEM == a printf("HELLO "); #endif #if SYSTEM == 20 printf("WORLD\n"); #endif }a) HELLOb) WORLDc) HELLO WORLDd) No Output

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

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#include <stdio.h>
int main()
{
int a[5] = {1, 2, 3, 4, 5};
int i;
for (i = 0; i < 5; i++)
if ((char)a[i] == '5')
printf("%d\n", a[i]);
else
printf("FAIL\n");
}

#include <stdio.h>
int main()
{
printf("%d ", 1);
l1:l2:
printf("%d ", 2);
printf("%d\n", 3);
}

#include <stdio.h>
int main()
{
enum {ORANGE = 5, MANGO, BANANA = 4, PEACH};
printf("PEACH = %d\n", PEACH);
}

. #include <stdio.h>
void main()
{
float x = 0.1;
if (x == 0.1)
printf("Sanfoundry");
else
printf("Advanced C Classes");
}

#include <stdio.h>
void main()
{
float x;
int y;
printf("enter two numbers \n", x);
scanf("%f %f", &x, &y);
printf("%f, %d", x, y);
}
a) 7.000000, 7
b) Run time error
c) 7.000000, junk
d) Varies

#include <stdio.h>
void main()
{
int x = 97;
char y = x;
printf("%c\n", y);
}
a) a
b) b
c) 97
d) Run time error

. #include <stdio.h>
void main()
{
m();
printf("%d", x);
}
int x;
void m()
{
x = 4;
}
a) 4
b) Compile time error
c) 0
d) Undefined

. #include <stdio.h>
#define SYSTEM 20
int main()
{
int a = 20;
#if SYSTEM == a
printf("HELLO ");
#endif
#if SYSTEM == 20
printf("WORLD\n");
#endif
}
a) HELLO
b) WORLD
c) HELLO WORLD
d) No Output

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