1
0

Add heap tester.

This commit is contained in:
Captain ALM 2022-10-28 09:43:51 +01:00
parent 17c38c219f
commit 52edc7807a
3 changed files with 58 additions and 26 deletions

View File

@ -1,11 +1,9 @@
#include <iostream>
#include <vector>
#include <algorithm>
#include <iomanip>
using string = std::string;
//Placw in header!
//Place in header!
template <typename T>
void printm(T m){
std::cout << m;
@ -17,37 +15,71 @@ void printlm(T m){
printm("\n");
}
double promptd(string,bool*);
class Heap {
int pos {0};
int length {0};
int size;
int* storage;
public:
Heap(int sz) {
size = sz;
storage = new int[sz];
}
~Heap() {
delete[] storage;
}
bool isEmpty() {
return length == 0;
}
void add(int item) {
if (length + 1 > size) return;
pos = length;
while (pos > 0 && storage[(pos-1)/2] < item) {
storage[pos] = storage[(pos-1)/2];
pos = (pos-1)/2;
}
storage[pos] = item;
++length;
}
int extractMax() {
int max {storage[0]};
storage[0] = storage[--length];
int first {0};
while ((2*first)+1 <= length - 1) {
int largest {(2*first)+1};
if ((2*first)+2 <= length - 1 && storage[largest] < storage[(2*first)+2]) largest = (2*first)+2;
if (storage[first] >= storage[largest]) break;
int swap = storage[first];
storage[first] = storage[largest];
storage[largest] = swap;
first = largest;
}
return max;
}
};
int prompti(string,bool*);
int main() {
std::setprecision(3);
printlm("Calculate median and average from sequence:");
std::vector<double> v{};
printlm("Create Heap:");
Heap h{16};
bool s {};
int i {0};
do {
auto d = promptd("Enter a number (Enter non-number to complete entry) : ",&s);
if (s) v.push_back(d);
auto d = prompti("Enter a number: ",&s);
if (s) {
h.add(d);
++i;
}
}
while(s);
sort(v.begin(), v.end());
printm("The count is: ");
printlm(v.size());
printm("The median is: ");
int halfway {static_cast<int>(v.size()) / 2};
if (static_cast<int>(v.size())%2 == 1)
printlm(v.at(halfway));
else
printlm((v.at(halfway - 1) + v.at(halfway)) / 2.0);
double avg {};
for (int i = 0; i < static_cast<int>(v.size()); ++i) avg += v.at(i);
avg /= static_cast<int>(v.size());
printm("The average is: ");
printlm(avg);
while(s && i < 16);
printlm("Output Heap:");
while (!h.isEmpty()) printlm(h.extractMax());
return 0;
}
double promptd(string message, bool *status) {
double tr {};
int prompti(string message, bool *status) {
int tr {};
*status = false;
std::cout << message;
if (!(std::cin >> tr)){

BIN
main.o

Binary file not shown.

BIN
t

Binary file not shown.