rt300@34: //
rt300@34: //  algorithms.mm
rt300@34: //  riftathon
rt300@34: //
rt300@34: //  Created by Robert Tubb on 26/11/2014.
rt300@34: //
rt300@34: //
rt300@34: 
rt300@34: #include <stdio.h>
rt300@34: #include "algorithms.h"
rt300@34: float euclideanDistance(vector<int> v1, vector<int> v2) {
rt300@34:     if (v1.size() != v2.size()){
rt300@34:         cout << "ERROR ERROR: vectors must be same length for Mr Euclid";
rt300@34:         return 0.;
rt300@34:     }
rt300@34:     vector<float> diff;
rt300@34:     
rt300@34:     std::transform(v1.begin(), v1.end(), v2.begin(), v1.begin(), difference<float>());
rt300@34:     // sqr diff
rt300@34:     
rt300@34:     std::transform(v1.begin(), v1.end(), v1.begin(),squared<float>());
rt300@34:     float ans = std::accumulate(v1.begin(),v1.end(),0.0);
rt300@34:     
rt300@34:     return sqrt(ans);
rt300@34:     
rt300@34: };