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Author SHA1 Message Date
f8c0961b3f
Update project file. 2022-10-21 13:08:46 +01:00
5ca32463d7
w3 q1 2022-10-21 12:46:45 +01:00
453902b44e
w2 q2 2022-10-14 12:41:10 +01:00
4c260479dd
w2 q1 2022-10-14 12:34:58 +01:00
4 changed files with 87 additions and 25 deletions

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@ -33,6 +33,8 @@
<Add option="-fexceptions" />
</Compiler>
<Unit filename="main.cpp" />
<Unit filename="stats.cpp" />
<Unit filename="stats.h" />
<Extensions />
</Project>
</CodeBlocks_project_file>

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@ -1,33 +1,63 @@
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <vector>
#include <iomanip>
#include "stats.h"
using string = std::string;
//Placw in header!
template <typename T>
void printm(T m)
{
std::cout << m;
}
template <typename T>
void printlm(T m)
{
printm(m);
printm("\n");
}
typedef std::vector<double>::size_type vtype;
double promptd(string,bool*);
int main()
{
using std::cout;
using std::cin;
srand(time(nullptr));
int gcount{ 1 };
int n { 20 };
int secret { rand()%n + 1 };
cout << "Guess a number between 1 and " << n << ": ";
int guess;
cin >> guess;
while (guess != secret)
std::setprecision(3);
printlm("Calculate the average and median of scores:");
bool s {};
std::vector<double> v {};
do
{
if (guess > secret)
{
cout << "Number too big ; ";
}
else
{
cout << "Number too small ; ";
}
gcount++;
cout << "Guess again: ";
cin >> guess;
auto d = promptd("Enter a score (Enter a non number to finish entry) : ",&s);
if (s) v.push_back(d);
}
cout << "Correct!\n";
cout << "Took " << gcount << " tries.\n";
while(s);
printm("Score median is: ");
printlm(med(v, false));
printm("Score median (No Extremes) is: ");
printlm(med(v, true));
printm("Score average is: ");
printlm(avg(v, false));
printm("Score average (No Extremes) is: ");
printlm(avg(v, true));
return 0;
}
double promptd(string message, bool *status)
{
double tr {0.0};
*status = false;
std::cout << message;
if (!(std::cin >> tr))
{
std::cin.clear();
std::cin.ignore();
return 0.0;
}
*status = true;
return tr;
}

21
stats.cpp Normal file
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@ -0,0 +1,21 @@
#include "stats.h"
#include <vector>
#include <algorithm>
double med(std::vector<double> &scores,bool ignoreExtremes) {
const auto len = scores.size() - (ignoreExtremes && scores.size() > 2) ? 2 : 0;
sort(scores.begin(), scores.end());
using vec_size = std::vector<double>::size_type;
const vec_size middle = (vec_size) (len / 2);
if (middle%2 == 1)
return scores[middle];
else
return (scores[middle - 1] + scores[middle]) / 2.0;
}
double avg(const std::vector<double> &scores,bool ignoreExtremes) {
auto sum = 0.0;
using vec_size = std::vector<double>::size_type;
for (vec_size i = (ignoreExtremes && scores.size() > 2) ? 1 : 0; i < scores.size() - (ignoreExtremes && scores.size() > 2) ? 1 : 0; i++) sum += scores[i];
return sum / static_cast<double>(scores.size() - (ignoreExtremes && scores.size() > 2) ? 2 : 0);
}

9
stats.h Normal file
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@ -0,0 +1,9 @@
#ifndef STATS_H_INCLUDED
#define STATS_H_INCLUDED
#include <vector>
double med(std::vector<double> &scores,bool ignoreExtremes);
double avg(const std::vector<double> &scores,bool ignoreExtremes);
#endif // STATS_H_INCLUDED