Q&A Discussions
hi, me newbie, started last day, right now I wrote a code using "do", the out is 2,4,6, while condition is <5. why or how output is exceeding 5. thanx in advance
int a=2;
do {
cout<<a <<endl;
a+=2;
}
while (a <5);
0 Votes
5 Answers
Guys plz explain me what is int* a and int a* and i have seen these types in lot of codes i dont understand this and plz show an easy example of this to understand more clearly
0 Votes
5 Answers
hello. please help me to understand this code:
int main(){
int i=50, b=20,c=30;
i=c,b;
cout<<i<<endl;
i=(c,b);
cout<<i<<endl;
}
outputs:
30
20
I don't realize, what does the parantheses change (3 and 5 line)
1 Vote
3 Answers
why will:
Var num;
num=42;
cause an error while:
int myAge;
myAge=18;
will not?
Is it that when working with Var we need to write it like this:
Varnum =15;
Varnum;
number=15;
2 Votes
6 Answers
#include<iostream>
#include<conio.h>
#include<stdio.h>
void main()
{
int i;
char str[80];
cout<<"enter any name";
gets(str);
for(i=0;str[i]!='\0';i++)
{cout<<str[i]<<"\n";
}
getch();
}
0 Votes
21 Answers
what if we put return 1 in main function eg
int main ()
{
•
•
•
•
•
•
•
•
return 1;
}
1 Vote
6 Answers
Give and explain the output of the following?
int main ()
{
int i, n = 4;
for (i = 0; i++<n; i++)
cout<<i<<"i";
}
2 Votes
9 Answers
#include<iostream>
using namespace std;
int main ()
{
int a,b;
int sum=a+b;
cout<<"enter a number";
cin>>a;
cout<<"enter another number";
cin b;
cout<<" sum is"<<sum<<endl;
return 0;
}
1 Vote
17 Answers
#include <iostream>
#include <bitset>
int main()
{
int myDecimalNumber;
std::cin >> myDecimalNumber;
std::string binary = std::bitset<8>(myDecimalNumber).to_string(); //to binary
std::cout<<binary<<"\n";
unsigned long decimal = std::bitset<8>(binary).to_long();
std::cout<<decimal<<"\n";
return 0;
}
2 Votes
5 Answers
The output comes x=204.55 and y=10090 but my x is an integer??
int x = 10090;
double y = 204.55;
Console.WriteLine("x = {1}; y = {0}", x, y);
1 Vote
7 Answers
what is output of given code
void func(int x)
{
x+=6;
}
int main()
{
static int x;
func(x);
cout<<x;
return 0;
}
// zero output explanation given below
2 Votes
10 Answers
What happens if I just declare the variable "sum" but don't put the initial value? For instance, if instead of saying "int sum = 0;" , I said " int sum;"
1 Vote
3 Answers
In most of the place i hv seen that the array format is like: int arr [5]; but here you r preferring to use int [5] arr; format. Is it really standard ?
0 Votes
3 Answers
What are the defaults? If you just state a variable int x; What is the default size and is it automatically signed or unsigned?
1 Vote
4 Answers
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