Answer:
This function is written in C++
void SwapVectorEnds(vector<int>& sortVector){
int vsize = sortVector.size();
sortVector.at(0) = sortVector.at(0) + sortVector.at(vsize - 1);
sortVector.at(vsize - 1) = sortVector.at(0) - sortVector.at(vsize - 1);
sortVector.at(0) = sortVector.at(0) - sortVector.at(vsize - 1);
int i = 0;
while(i<vsize)
{
cout << sortVector.at(i) << " ";
i++;
}
return;
}
Explanation:
This defines the function
void SwapVectorEnds(vector<int>& sortVector){
This gets the size of the vector
int vsize = sortVector.size();
The following swap the value of the first element of the vector with the last without using any temporary variable
sortVector.at(0) = sortVector.at(0) + sortVector.at(vsize - 1);
sortVector.at(vsize - 1) = sortVector.at(0) - sortVector.at(vsize - 1);
sortVector.at(0) = sortVector.at(0) - sortVector.at(vsize - 1);
The following iteration prints the new vector
int i = 0;
while(i<vsize)
{
cout << sortVector.at(i) << " ";
i++;
}
return;
}
To call the function from main, use:
SwapVectorEnds(sortVector);
