Q. What is the following is invalid header file in C?
✅ Correct Answer: (B)
mathio.h
Programming for Problem Solving MCQs | Page - 4
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Q. What is storage class for variable A in below code?
int main()
{
int A;
A = 10;
printf("%d", A);
return 0;
}
int main()
{
int A;
A = 10;
printf("%d", A);
return 0;
}
✅ Correct Answer: (B)
auto
Q. #include "stdio.h"
int main()
{
int a@ = 10;
printf("%d", a@);
return 0;
}
int main()
{
int a@ = 10;
printf("%d", a@);
return 0;
}
✅ Correct Answer: (D)
[Error] stray '@' in program
Q. #include "stdio.h"
int main()
{
int a = 10;
printf("%d", a);
int a = 20;
printf("%d",a);
return 0;
}
int main()
{
int a = 10;
printf("%d", a);
int a = 20;
printf("%d",a);
return 0;
}
✅ Correct Answer: (B)
Error: Redeclartion of a
Q. #include "stdio.h"
int a = 20;
int main()
{
int a = 10;
printf("%d", ::a);
return 0;
}
int a = 20;
int main()
{
int a = 10;
printf("%d", ::a);
return 0;
}
✅ Correct Answer: (B)
20
Q. #include "stdio.h"
int main()
{
int a = 10, b = 20;
if(a=b)
{
printf("Easy");
}
else
{
printf("Hard");
}
return 0;
}
int main()
{
int a = 10, b = 20;
if(a=b)
{
printf("Easy");
}
else
{
printf("Hard");
}
return 0;
}
✅ Correct Answer: (A)
Easy
Q. Which gcc flag is used to enable all Compiler warnings?
✅ Correct Answer: (C)
gcc -Wall
Q. Which gcc flag is used to generate maximum debug information?
✅ Correct Answer: (D)
gcc –g3
Q. Which macro is used to insert assembly code in C program (VC++ compiler)?
✅ Correct Answer: (C)
__asm
Q. Which macro is used to insert assembly code in C program (GCC compiler)?
✅ Correct Answer: (A)
__asm__
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