# Output of C++ programs | Set 45

Q.1 What Is The Output Of this program?

```#include <iostream>
using namespace std;
int main()
{
int a = b = c = 10;
a = b = c = 50;
printf("%d %d %d", a, b, c);
return 0;
}
```

Option
a) 50 50 50
b) Three Gaebage Value
c) 10 10 10
d) Compile Time Error

`Ans: d`

Explanation : In this program, b and c are not declared and we can not directly assign the value to them so “Compilation Time” error occurred.

Q.2 What Is The Output Of this program?

```#include <iostream>
using namespace std;
int main()
{
double x = 28;
int k;
k = (int)x % 5;
k = k << 2;
printf("hx=%x", k);
return 0;
}
```

Option
a) hx = a
b) hx = 12
c) hx = c
d) hx= 13

`Ans: C`

Explanation : In this code a double value modulus an integer value is given and further the result is left shifted 2 bits and printed in hexa-decimal form.

Q.3 What Is The Output Of this program?

```#include <iostream>
#define squre(x) x* x
#define squre1(x) (x) * (x)
using namespace std;
int main()
{
printf("%d, ", squre(10 + 2));
printf("%d", squre1(10 + 2));
return 0;
}
```

Option
a) 144, 32
b) 32, 144
c) 100, 12
d) 12, 144

`Ans: B`

Explanation : In this program, #define macro used to replace value and calculated them like this:

```10 + 2 * 10 + 2 = 32
or (10+2)*(10+2) = 144 ```

Q.4 What Is The Output Of this program?

```#include <iostream>
using namespace std;
int main()
{
int i;
i = 0x18 + 0110 + 11;
printf("p= %d", i);
return 0;
}
```

Option
a) p= 101
b) p= 107
c) p= 40
d) Error

`Ans: B`

Explanation : In this program 0x is hexa-decimal notation and 0 is octal, convert these value in decimal and add them.

Q.5 What Is The Output Of this program?

```#include <iostream>
using namespace std;
int main()
{
char* a = "INFO";
a++;
printf("%s", a);
return 0;
}
```

Option
a) Error
b) INFO
c) NFO
d) None of these

`Ans: C`

Explanation : In this program, *a is hard core string that contain a base address of string. When we increment the address, it points to next value of the string.

This article is contributed by Gyayak jain . If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

# GATE CS Corner    Company Wise Coding Practice

Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.
3 Average Difficulty : 3/5.0
Based on 3 vote(s)