CPP practice question 7 of 30
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…
Choose your answer, then check it against the explanation.
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):val(v){}
int getV() const {return val;} bool operator < (const B & v) const { return val<v.val;} };
templatestruct Out {
ostream & out;
Out(ostream & o): out(o){}
void operator() (const T & val ) { out<<val<<" "; } };
int main() {
B t1[]={3,2,4,1,5};
B t2[]={5,6,8,2,1};
vector v1(10,0);
sort(t1, t1+5);
sort(t2, t2+5);
set_difference(t1,t1+5,t2,t2+5,v1.begin());
for_each(v1.begin(), v1.end(), Out(cout));cout<<endl;
return 0;
}
Program outputs:
Question 7 of 30
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