QUESTION: 33

What will happen when you attempt to compile and run the following code?

#include <iostream>
#include <set>
#include <vector>
using namespace std;
int main(){
int t[] = { 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 };
vector<int> v(t, t+10);
set<int> s1(v.begin(),v.end());
s1.insert(v.begin(),v.end());
bool found = s1.find(7);
if (found){
cout<<"Element found!\n";
}else {
cout<<"Element not found!\n";
}
return 0;
}

program will display "Element found!"
program will display "Element not found!\n"
code will not compile
changing type of variable found to int will make this code compile

Answer(s): C

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QUESTION: 34

What happens when you attempt to compile and run the following code?

#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
using namespace std;

void myfunction(int i) {
cout << " " << i;
}
bool classifier(int v) {
return v%2==0;
}
int main() {
int t[] = { 1, 5, 2, 5, 2, 4, 4, 3, 3, 1 };
vector<int> v1(t, t+10);
set<int> s1(t, t+10);
replace(v1.begin(), v1.end(),classifier, 10);
for_each(v1.begin(), v1.end(), myfunction);
return 0;
}

Program outputs:

1 5 10 5 10 10 10 3 3 1
1 5 2 5 2 4 4 3 3 1
compilation error
10 10 2 10 2 4 4 10 10 10

Answer(s): C

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QUESTION: 35

What happens when you attempt to compile and run the following code?

#include <deque>
#include <list>
#include <iostream>
using namespace std;
int main ()
{
list<int> l1;
deque<int> d1;
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;
}

program displays 4 4 3 3 2 2 1 1 0 0 0 0 1 1 2 2 3 3 4 4
runtime exception
compilation error due to line 11
compilation error due to line 12
compilation error due to line 16

Answer(s): E

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QUESTION: 36

What happens when you attempt to compile and run the following code?

#include <deque>
#include <vector>
#include <iostream>
using namespace std;

int main ()
{
int t[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
vector<int> v1(t, t + 10);
deque<int> d1(v1.begin(), v1.end());
deque<int> d2;
d2 = d1;
d2.insert(d1.rbegin(), 10);
for(int i = 0; i<d1.size(); i++)
{
cout<<d1[i]<<" ";
}
return 0;
}

program outputs: 0 1 2 3 4 5 6 7 8 9 10
program outputs: 10 0 1 2 3 4 5 6 7 8 9
program outputs: 0 1 2 3 4 5 6 7 8 9
compilation error

Answer(s): D

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