Q&A Discussions
#include <string>
using namespace std;
int main() {
string a = "I am learning C++";
return 0;
} why it has no op?
0 Votes
2 Answers
main(void)
{ court<<"hi";
} //output is hi
what does it mean 1st line in program
&diff b/w above and void main() is..??
pls ans.. me
0 Votes
5 Answers
why output 100?
#include <iostream>
using namespace std;
int main()
{
int x=1;
for(;x<100;x++)
{if(x>5) continue;
x*=x;
}
cout<<x;
}
0 Votes
2 Answers
#include <iostream>
using namespace std;
int calc(int &a,int &b,int c=6)
{
a+=b;
b-=c;
c=a+b;
}
int main()
{
int calc(int,int,int);
int x=2,y=3,z=4; cout<<x<<endl<<y<<endl<<z<<endl;
calc(x,y,z); cout<<x<<endl<<y<<endl<<z<<endl;
calc(5,6,z); cout<<x<<endl<<y<<endl<<z<<endl;
return 0;
}
1 Vote
5 Answers
int main()
{
int a, b;
cout << "Enter a number \n";
cin >> a;
cout << "Enter another number \n";
cin >> b;
0 Votes
4 Answers
Suppose we are using int main() and after that in the last of the program why we are writing that return o;
1 Vote
2 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
#include <iostream>
using namespace std;
int main() {
int a[4]={1,2,3,4};
a[1]=*(a+2);
*(a+2)=a[3]++;
cout<<a[1]+a[2];
}
could someone explain (comment each line) why the output is 7 ?
1 Vote
4 Answers
#include <iostream>
using namespace std;
int main()
{
int num = 1;
int number;
int total = 0;
while (num <= 5)
-2 Votes
2 Answers
Is there a reason the code after int main() doesn't start right below the curly bracket but is rather a few spaces infront?
1 Vote
2 Answers
why this output comes 4 and why not -4;
#include<iostream>
using namespace std;
int main() {
int a=4;
int *p=&a;
p-= 8;
cout<<a;
}
0 Votes
3 Answers
Why do we have to return always 0 in case the return type of the main() is int. What will happen if we return some integer other than 0?
1 Vote
5 Answers
#include <iostream>
using namespace std;
int main()
{
int num = 1;
int number;
int total = 0;
while (num <= 5)
0 Votes
2 Answers
Can Anyone explain me?
0 Votes
2 Answers
what's wrong with this code??
#include <iostream>
using namespace std;
int main() {
int n;
int max=0;
while (n!=0)
{
cin>>n;
if(n>max)
max=n;
}
cout <<max;
return 0;
}
0 Votes
5 Answers
#include <iostream>
using namespace std;
int main() {
int i;
for(i=1;i<=6;i+=3)
{
cout<<i;
}
return 0;
}
hello guys pls tell me the output
0 Votes
2 Answers
why this output 4 not 5;
#include<iostream>
using namespace std;
class A{
public:
int x=3;
A(){x++;}
~A(){x++;}
};
int main() {
A obj;
cout<<obj.x;
}
0 Votes
2 Answerswt is output if a=2.0,b=2.5
#include <iostream>
using namespace std;
int main()
{
int a, b;
int sum;
cout << "Enter a number \n";
cin >> a;
cout << "Enter another number \n";
cin >> b;
sum = a + b;
cout << "Sum is: " << sum << endl;
return 0;
}
0 Votes
21 Answers
If i want a function to get input(s) from the user, how do i store the values into integers inside the int main() function?
0 Votes
1 Answer
int main() {
int b = 5; int arr[b] = {11, 35, 62, 555, 989}; int sum = 0; for (int x = 0; x < 5; x++) {
sum+=arr[x]
0 Votes
4 Answers
Hi { I am a new user }. Whenever I run a code it shows error in main(). I am not able to find why can anybody help me. Please.
0 Votes
3 Answers
what is that output of this program
#include<iostream.h>
using namespace std;
int main()
{
int e1=5, e2=20, e3 = 15;
int *arr[ 3]= {&e1, &e2, &e3};
court<<*arr[*arr[1]-19];
return 0;
}
0 Votes
3 Answerswhy this output is 339 ???
#include<iostream>
using namespace std;
int x(int &a,int &b)
{
a=1;
b=3;
return a*b;
}
int main()
{
int a=3;
int b=4;
int c=x(b,b);
cout<<a<<b<<c;
}
0 Votes
3 Answerswhy this program show compile error?
#include<iostream>
using namespace std;
class a{
public:
int f(){cout<<3;}
int f(int a){cout<<a;}
};
class b:public a
{
public:
int f(){cout<<5;}
};
int main()
{
b obj;
obj.f(7);
}
0 Votes
4 Answers
What is the output and how dose it came ?
#include <iostream>
int main() {
std::cout << (10 & 6) << std::endl;
std::cout << (10 | 6) << std::endl;
return 0;
}
0 Votes
3 Answers
Hi! can anyone help me to write this simple code: #include <iostream>
using namespace std;
int main()
{
if (7 > 4) {
cout << "Yes";
}
return 0;
}
into Microsoft Visual Studio 2015?
0 Votes
4 Answers
ما هو الخطأ فى هذا الكود
0 Votes
2 Answers#include <iostream>
using namespace std;
class employee
int main()
{
private:
double salary;
public:
void getsalary(double sal)
{
salary=sal;
}
void display()
{
cout<<"the salary:"<<salary;
}
};
void main ()
{
employee programmer;
employee manager;
manager.getsalary (60000.0);
programmer.getsalary(40000.0);
manager.display();
programmer.display();
return 0;
}
1 Vote
5 Answers
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