PA1 - úkol 7.2 (Větrné elektrárny, bez bonusu)

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

unsigned int countPrice( vector<unsigned int> v, unsigned int i, unsigned int j )
 {
    if ( i == j )
        return 0;
    unsigned int price, candidate = -1;
    for ( unsigned int k = i; k < j; k++ )
     {
        price = countPrice(v, i, k) + countPrice( v, k + 1, j ) + v.at( i - 1 )*v.at( j ) + v.at( k );
        candidate = candidate < price ? candidate : price;
     }
    return candidate;
 }

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: " << countPrice ( srouby, 1, srouby.size() - 1 ) << endl;
    return 0;
 }