C++ Institute Related Exams
CPP Exam
What will happen when you attempt to compile and run the following code?
#include
#include
using namespace std;
int main ()
{
float f = 10.126;
cout.unsetf(ios::floatfield);
cout<<scientific< return 0; } What will be a mantissa part of the numbers displayed:
What happens when you attempt to compile and run the following code?
#include
#include
#include
using namespace std;
class B { int val;
public:
B(int v=0):val(v){}
int getV() const {return val;}
operator int () const { return val;} };
template
ostream & out;
Out(ostream & o): out(o){}
void operator() (const T & val ) { out< struct Add { B operator()(B & a, B & b) { return a+b; }}; int main() { int t[]={1,2,3,4,5,6,7,8,9,10}; vector v1(t, t+10); vector v2(10); transform(v1.begin(), v1.end(), v2.begin(), bind1st(Add(),1)); for_each(v2.rbegin(), v2.rend(), Out(cout));cout<<endl; return 0; } Program outputs:
Which changes introduced independently will allow the code to compile and display 0 0 1 1 8 8 9 9 (choose all that apply)?
#include
#include
#include
using namespace std;
class A {
int a;
public:
A(int a):a(a){}
int getA() const { return a;}
/* Insert Code Here 1 */
};
/* Insert Code Here 2*/
int main(){
A t[] ={ 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 };
sets(t, t+10);/* Replace Code Here 3 */
multiset s1(s.begin(),s.end());/* Replace Code Here 4 */
s1.insert(s.begin(),s.end());
s1.erase(s1.lower_bound(2),s1.upper_bound(7));
multiset::iterator i=s1.begin();/* Replace Code Here 5 */
for( ;i!= s1.end(); i++)
{
cout<<i?>getA()<<" ";
}
cout<<endl;
return 0;
}