Functions
- Which keyword is used to declare the min and max functions?
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NA
Correct Option: B
Algorithm header file contain the supporting files needed for the execution of these functions.
- How many parameters does a operator() in a function object shoud take?
-
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NA
Correct Option: C
In the case of binary function objects, this operator() member function will take two parameters.
- Which are instances of a class with member function operator() when it is defined?
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NA
Correct Option: B
Function objects are instances of a class with member function operator() defined. This member function allows the object to be used with the same syntax as a regular function call.
- What is the output of this program?
#include <iostream>
#include <functional>
#include <algorithm>
using namespace std;
int main ()
{
int num[] = {11, -22, -33, 44, -55, 66, -1};
int Calculate;
Calculate = count_if ( num, num + 7, bind2nd(less<int>(), 0) );
cout << Calculate;
return 0;
}
-
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NA
Correct Option: B
In this program, We are calculating the number of negative elements present in the program by using function objects.
- What is the output of this program?
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
bool mygreater (int i,int j)
{
return (i > j);
}
int main ()
{
int Numbers[] = {45, 55, 55, 45, 65, 45, 55, 65};
vector<int> num(Numbers, Numbers + 8);
pair<vector<int> :: iterator, vector<int> :: iterator> Bound;
sort (num.begin(), num.end());
Bound = equal_range (num.begin(), num.end(), 65);
cout << (Bound.first - num.begin());
cout << " And " << (Bound.second - num.begin());
return 0;
}
-
View Hint View Answer Discuss in Forum
NA
Correct Option: C
In this program, We are finding out the equal range in the vector.
