Question: using c++ Change the array of integers to an array of names (unsorted). Enter a name to search for. Document if the name is found
using c++
- Change the array of integers to an array of names (unsorted). Enter a name to search for. Document if the name is found correctly.
- Add a sort routine, of your choice, to your binary search program. Enter a name to search for. Document if the name is found correctly.
- the program is below
#include
int binarySearch(int[], int, int); // function prototype const int SIZE = 16;
int main() { int found, value;
int array[] = { 34, 19, 19, 18, 17, 13, 12, 12, 12, 11, 9, 5, 3, 2, 2, 0 }; // array to be searched
cout << "Enter an integer to search for:" << endl; cin >> value;
found = binarySearch(array, SIZE, value); // function call to perform the binary search // on array looking for an occurrence of value
if (found == -1) cout << "The value " << value << " is not in the list" << endl; else cout << "The value " << value << " is in position number " << found + 1 << " of the list" << endl;
return 0; }
//******************************************************************* // binarySearch // // task: This searches an array for a particular value // data in: List of values in an orderd array, the number of // elements in the array, and the value searched for // in the array // data returned: Position in the array of the value or -1 if value // not found // //*******************************************************************
int binarySearch(int array[], int numElems, int value) // function heading { int first = 0; // First element of list int last = numElems - 1; // last element of the list int middle; // variable containing the current // middle value of the list
while (first <= last) { middle = first + (last - first) / 2;
if (array[middle] == value) return middle; // if value is in the middle, we are done
else if (array[middle] else first = middle + 1; // toss out the first remaining half of // the array and search the second } return -1; // indicates that value is not in the array }
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