PA1 - úkol 7.2 (Větrné elektrárny, s bonusem)

#include <iostream>
#include <vector> // sorry kittens.. earl.hustej.net/files/Every_time_you_PJC.jpg
#include <cstdio>
using namespace std;

int fastCountPrice(vector<unsigned int> p, int n)
{
    unsigned int m[100][100];
    for (int i = 1; i < n; i++)
        m[i][i] = 0;

    for (int L=2; L < n; L++)
     {
        int j;
        for (int i=1; i<=n-L+1; i++)
         {
            j = i+L-1;
            m[i][j] = -1;
            unsigned int price;
            for (int k=i; k<=j-1; k++)
             {
                price = m[i][k] + m[k+1][j] + p[i-1]*p[j]+p[k];
                m[i][j] = m[i][j] < price ? m[i][j] : price;
             }
         }
     }
    return m[1][n-1];
}

int main ( int argc, char * argv[] )
 {
    cout << "Zadejte pocty sroubu pro jednotlive priruby:" << endl;
    vector<unsigned int> srouby;
    try
     {
        int input;
        char c;
        do
         {
            if ( scanf ( "%d%c", &input, &c ) != 2 || input < 1 )
                throw 2;
            srouby.push_back( input );
         } while ( c != '\n' );

        if ( srouby.size() < 2 )
            throw 1;
     }
    catch ( int e )
     {
        cout << "Nespravny vstup." << endl;
        return e;
     }
    cout << "Cena: " << fastCountPrice ( srouby, srouby.size() ) << endl;
    return 0;
 }