What happens when you attempt to compile and run the following code?
#include
#include
#include
using namespace std;
int main(){
int t[] ={ 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 };
multiset s1(t,t+10);
s1.insert(s1.find(7), 3);
for(multiset::iterator i=s1.begin();i!= s1.end(); i++) {
cout<<*i<<" ";
}
return 0;
}
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Correct Answer:
A
Q: 2
What happens when you attempt to compile and run the following code?
#include
#include
#include
#include
using namespace std;
templatestruct Out {
ostream & out;
Out(ostream & o): out(o){}
void operator() (const T & val ) { out<<val<<" "; } };
struct Add : public binary_function {
int operator() (const int & a, const int & b) const {
return a+b;
}
};
int main() {
int t[]={1,2,3,4,5,6,7,8,9,10};
deque d1(t, t+10);
deque d2(10);
transform(d1.begin(), d1.end(), d2.begin(), bind2nd(Add(), 1));
for_each(d2.rbegin(), d2.rend(), Out(cout));cout<<endl;
return 0;
}
Program outputs:
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Correct Answer:
D
Q: 3
What happens when you attempt to compile and run the following code?
#include
using namespace std;
template
void f(A a)
{
cout<<1<<endl;
}
void f(int a)
{
cout<<2<<endl;
}
int main()
{
int a = 1;
f(a);
return 0;
}
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Correct Answer:
A
Q: 4
What will be output of the program when you attempt to compile and run the following code?
#include
#include
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Correct Answer:
E
Q: 5
What happens when you attempt to compile and run the following code?
#include
#include
#include
#include
using namespace std;
int main() {
int t[] = {1,2,3,2,3,5,1,2,7,3,2,1,10, 4,4,5};
vector v1(t, t + 15);
set s1(t, t + 15);
pair<set::iterator, vector::iterator > resultSet = equal(s1.begin(), s1.end(), v1.begin());
cout<<*resultSet.first<<" "<<*resultSet.second<<endl;
return 0;
}
Program outputs:
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Correct Answer:
D
Q: 6
What happens when you attempt to compile and run the following code?
#include
#include
using namespace std;
template
class A {
T_v;
public:
A() {}
A(T v): _v(v){}
T getV() { return _v; }
void add(T & a) { _v+=a; }
void add(string & a) {
_v.insert(0, a);
}
};
int main()
{
Aa("Hello");
string s(" world!");
a.add(s);
cout << a.getV() <<endl;
return 0;
}
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Correct Answer:
B
Q: 7
What happens when you attempt to compile and run the following code?
#include
#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;} };
ostream & operator <<(ostream & out, const B & v) { out<<v.getV(); return out;}
templatestruct Out {
ostream & out; Out(ostream & o): out(o){}
void operator() (const T & val ) { out<<val<<" "; } };
int main() {
int t[]={20, 30, 10, 20, 30, 10, 20, 30, 10, 20};
deque d1(t, t+10);
sort(d1.begin(), d1.end(), greater());
pair<deque ::iterator, deque::iterator > result = equal_range(d1.begin(), d1.end(), B(20),
greater());
for_each(result.first, result.second, Out(cout));cout<<endl;
return 0;
}
Program outputs:
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Correct Answer:
B
Q: 8
What will happen when you attempt to compile and run the code below, assuming that you enter
the following sequence: 1.1 2.2 3.3?
#include
#include
using namespace std;
int main ()
{
int a,b,c;
cin>>a>>b>>c;
cout<<a<<b<<c<<endl;
return 0;
}
Program will output:
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Correct Answer:
E
Q: 9
What happens when you attempt to compile and run the following code?
#include
#include
#include
using namespace std;
bool compare(int a, int b) { return a == b; }
int main () {
int t[] = {1,2,3,4,5,1,2,3,4,5};
vector v (t,t+10);
vector::iterator it = v.begin();
int m1[] = {1, 2, 3};
while ( (it = find_first_of (it, v.end(), m1, m1+3)) != v.end()) {
cout<<it?v.begin()<<" ";
}
cout<< endl;
return 0;
}
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Correct Answer:
E
Q: 10
What will happen when you attempt to compile and run the following code?
#include
using namespace std;
class C {
public:
int _c;
C():_c(0){}
C(int c) { _c = c;}
C operator+=(C & b) {
C tmp;
tmp._c = _c+b._c;
return tmp;
}
};
template
class A {
T_v;
public:
A() {}
A(T v): _v(v){}
T getV() { return _v; }
void add(T & a) { _v+=a; }
};
int main()
{
A b(2);
Aa (5);
Cc;
a.add(c);
cout << a.getV() <<endl;
return 0;
}
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Correct Answer:
B
Q: 11
What happens when you attempt to compile and run the following code?
#include
#include
int main ()
{
std::vectorv1;
for(int i = 10; i>0; i??)
{
v1.push_back(i);
}
std::vector::iterator it = v1.begin();
int sum = 0;
while(it != v1.end())
{
sum+=it++;
}
std::cout<<*v1.erase(v1.begin(),v1.end()?3)<<" "<<sum <<std::endl;
return 0;
}
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Correct Answer:
B
Q: 12
What happens when you attempt to compile and run the following code?
#include
#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;}
};
ostream & operator <<(ostream & out, const B & v) { out<<v.getV(); return out;}
templatestruct Out {
ostream & out;
Out(ostream & o): out(o){}
void operator() (const T & val ) { out<<val<<" "; }
};
int main() {
B t[]={8, 10, 5, 1, 4, 6, 2, 7, 9, 3};
B t1[]={B(1),B(2),B(3),B(4)};
deque d1(t, t+10);
set s1(t, t+10);
sort(d1.begin(), d1.end());
cout<<includes(d1.begin(),d1.end(), t1,t1+4)<<" "<<includes(s1.begin(),s1.end(), t1,t1+4)
<<endl;
return 0;
}
Program outputs:
Options
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Correct Answer:
A
Q: 13
What happens when you attempt to compile and run the following code?
#include
#include
Options
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Correct Answer:
B
Q: 14
What happens when you attempt to compile and run the following code?
#include
#include
Options
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Correct Answer:
B
Q: 15
What happens when you attempt to compile and run the following code?
#include
#include
#include
#include
using namespace std;
bool identical(int a, int b) {
return b == 2*a?true:false;
}
int main() {
int t[] = {1,2,3,2,3,5,1,2,7,3,2,1,10, 4,4,5};
int u[] = {2,4,6,4,6,10,2,4,14,6,4,2,20,8,8,5};
vector v1(t, t + 15);
deque d1(u, u + 15);
pair<deque::iterator, vector::iterator > result;
result = mismatch(d1.begin(), d1.end(), v1.begin(), identical); //Line I
if (result.first == d1.end() && result.second == v1.end()) {//Line II
cout<<"Identical\n";
} else {
cout<<"Not identical\n";
}
return 0;
}
Program outputs:
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Correct Answer:
B
Q: 16
What happens when you attempt to compile and run the following code?
#include
#include
#include
using namespace std;
void print(int v) {
cout<<v<<" ";
}
struct Sequence {
int start;
Sequence(int start):start(start){}
int operator()() {
return start++;
}
};
int main() {
vector v1(10);
generate_n(v1.begin(), 10, Sequence(1));
for_each(v1.begin(), v1.end(), print);
cout<<endl;
return 0;
}
Program outputs:
Options
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Correct Answer:
A
Q: 17
What happens when you attempt to compile and run the following code?
#include
#include
#include
using namespace std;
template void print(T start, T end) {
while (start != end) {
std::cout << *start << " "; start++;
}
}
int main(){
vectorv;
multiset s;
for(int i=10; i>0; i??) {
v.push_back(i); s.push_back(i);
}
print(v.begin(), v.end()); print(s.begin(), s.end());cout<<endl;
return 0;
}
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Correct Answer:
D
Q: 18
What happens when you attempt to compile and run the following code? Choose all that apply.
#include
#include
using namespace std;
int main ()
{
vectorv1(10, 3);
v1.push_back(3);
cout<<v1.capacity()<<" "<< v1.size()<<endl;
return 0;
}
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Correct Answer:
C, D
Q: 19
What happens when you attempt to compile and run the following code?
#include
#include
#include
using namespace std;
int main ()
{
listl1;
dequed1;
for(int i=0; i<5; i++)
{
l1.push_back(i);l1.push_front(i);
d1.push_back(i);d1.push_front(i);
}
for(int i=0; i<d1.size(); i++)
{
cout<<d1[i]<<" "<<l1[i]<<" ";
}
cout<<endl;
return 0;
}
Options
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Correct Answer:
E
Q: 20
What happens when you attempt to compile and run the following code?
#include
#include
#include
using namespace std;
int main(){
int t[] ={ 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 };
vectorv(t, t+10);
multiset s1(v.begin(),v.end());
s1.insert(v.begin(),v.end());
pair<multiset::iterator,multiset::iterator> range;
range = s1.equal_range(6);
while (range.first != range.second) {
cout<<*range.first<<" "; range.first++;
}
return 0;
}
