What happens when you attempt to compile and run the following code?
# include <iostream>
# include <set>
# include <vector>
using namespace std;
int main(){
int myints[] ={ 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 };
vector<int>v(myints, myints+10);
set<int> s1(v.begin(),v.end());
set<int, greater<int> > s2(v.begin(), v.end());
for(set<int>::iterator i=s1.begin();i!= s1.end(); i++) {
cout<<*i<<" ";
}
for(set<int, greater<int> >::iterator i=s2.begin();i!= s2.end(); i++) { cout<<*i<<" ";
}
cout<<endl;
return 0;
}
What happens when you attempt to compile and run the following code?
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
void print(int v) { cout<<v<<" "; }
struct Sequence {
int start;
Sequence(int start):start(start){}
int operator()() {
return 10*(1+(start++ %3));
}
};
int main() {
vector<int> v1(10);
generate_n(v1.begin(), 10, Sequence(1));
remove(v1.begin(), v1.end(), 10);
for_each(v1.begin(), v1.end(), print);cout<<endl;
return 0;
}
Program outputs:
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
struct Compare {
bool operator ()(int a) {
if (a >5) return true;
return false;
}
};
int main () {
int t[] = {1,2,3,2,3,5,1,2,7,3,2,1,10, 4,4,5};
vector<int> v (t,t+15);
int number = count(v.begin(), v.end(), Compare());
cout<< number<<endl;
return 0;
}
Program outputs:
What happens when you attempt to compile and run the following code?
#include <vector>
#include <iostream>
#include <algorithm>
#include <functional>
using namespace std;
template<class T>struct Out {
ostream & out;
Out(ostream & o): out(o){}
void operator() (const T & val ) { out<<val<<" "; } };
int main() {
int t[]={3,2,4,1,5,6,10,8,7,9};
vector<int> v1(t, t+10);
for_each(v1.begin(), v1.end(), bind1st(plus<int>(), 1));
for_each(v1.rbegin(), v1.rend(), Out<int>(cout));cout<<endl;
return 0;
}
Program outputs:
What happens when you attempt to compile and run the following code?
#include <vector>
#include <set>
#include <iostream>
#include <algorithm>
using namespace std;
template<class T>struct Out {
ostream & out;
Out(ostream & o): out(o){}
void operator() (const T & val ) { out<<val<<" "; } };
bool Greater(int v1, int v2) { return v1<v2; }
int main() {
int t[]={8, 10, 5, 1, 4, 6, 2, 7, 9, 3};
vector<int> v1(t, t+10);
sort(v1.begin(), v1.end(), Greater);
for_each(v1.begin(), v1.end(), Out<int>(cout));cout<<endl;
return 0;
}
Program outputs:
