Which keyword is used to define a constant in C?
Anonymous Quiz
14%
constant
9%
define
72%
const
5%
static
What are assignment operator ?
Anonymous Quiz
59%
=
9%
& , || , !=
21%
< , > <= , >=
12%
+ , - , * / , %
π3
Which of the following function declarations is invalid in C?
Anonymous Quiz
24%
int func();
19%
int func(int, char);
24%
int func(int a, b);
34%
int func(void);
Which of the following statements is true about static variables in C?
Anonymous Quiz
26%
static variables are automatically initialized to 1.
30%
static variables retain their value between function calls.
32%
static variables can only be declared globally.
12%
static variables cannot be used in recursive functions.
Which of the following is a correct statement about the pointer arithmetic in C?
Anonymous Quiz
31%
ptr++ increments the pointer ptr by the size of the pointer itself.
20%
ptr++ increments the pointer ptr by 1 byte regardless of the data type it points to.
34%
ptr++ increments the pointer ptr by the size of the data type it points to.
15%
ptr++ does not change the pointer ptr.
What is the purpose of the volatile keyword in C?
Anonymous Quiz
31%
To declare a variable whose value may be changed unexpectedly by other parts of the program.
37%
To allocate memory dynamically.
20%
To prevent the compiler from optimizing the code.
12%
To declare a constant value.
Who is the father of C language?
Anonymous Poll
6%
Steve Jobs
22%
James Gosling
69%
Dennis Ritchie
3%
Rasmus Lerdorf
Which of the following declaration is not supported by C language?
Anonymous Quiz
26%
a) String str;
13%
b) char *str;
33%
c) float str = 3e2;
28%
d) Both βString str;β and βfloat str = 3e2;β
In C Language, which of the following is not a valid variable name declaration?
Anonymous Quiz
33%
int __3a;
17%
int __A3;
12%
int __a3;
37%
None of the mentioned
In C language, why do variable names beginning with the underscore is not encouraged?
Anonymous Quiz
18%
It is not standardized
41%
To avoid conflicts since assemblers and loaders use such names
24%
To avoid conflicts since library routines use such names
18%
To avoid conflicts with environment variables of an operating system
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Jo bhi visual studio me c/c++ ka program nhi kar pate hai unke k liye best video hai
Jo bhi visual studio me c/c++ ka program nhi kar pate hai unke k liye best video hai
YouTube
| Best C/C++ compiler | C/C++ compiler without extension | #coding #compiler #codebomb
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Forwarded from πα΄α΄
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α΄
#include <stdio.h>
int main() {
int x = 10;
int *ptr = &x;
*ptr = 20;
printf("%d\n", x);
return 0;
}
Output of above code?
Anonymous Quiz
26%
A) 10
13%
B) Undefined Behavior
52%
C) 20
8%
D) Compilation Error
π2
Program to swap values of two variables.
#include <iostream>
int main() {
int a=1;
int b=2;
int temp;
std::cout << "Before Swapping:\n";
std::cout << "a=" << a <<",b=" << b <<"\n";
temp = a;
a=b;
b=temp;
std::cout << "After Swapping:\n";
std::cout << "a=" << a <<",b=" << b <<"\n";
return 0;
}
π5β€1
C & C++ PROGRAMMING
https://youtu.be/TBQrLkcK1KQ?si=9fGmOTMDKDx8w8Ht
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Program to swap values of two variables.
#include <iostream>
int main() {
int a=1;
int b=2;
int temp;
std::cout << "Before Swapping:\n";
std::cout << "a=" << a <<",b=" << b <<"\n";
temp = a;
a=b;
b=temp;
std::cout << "After Swapping:\n";
std::cout << "a=" << a <<",b=" << b <<"\n";
return 0;
}