Cod sursa(job #711245)

Utilizator dtoniucDaniel Toniuc dtoniuc Data 11 martie 2012 19:18:47
Problema Energii Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.55 kb
#include <iostream>
#include <fstream>
#define INF 11000
using namespace std;
int nr,w,a[1002][5002];
int min(int a,int b)
{
	if(a<b) return a;
	else return b;
}
int main()
{
	ifstream fin("energii.in");
	ofstream fout("energii.out");
	fin>>nr>>w;
	for(int i=0;i<=w;i++)
		a[0][i]=INF;
	for(int i=1;i<=nr;i++)
	{
		int en,co;
		fin>>en>>co;
		for(int j=1;j<=w;j++)
		{
			if(j<=en) a[i][j]=min(co,a[i-1][j]);
			else a[i][j]=min(a[i-1][j],a[i-1][j-en]+co);
		}
	}
	if(a[nr][w]==INF)
		fout<<-1;
	else
		fout<<a[nr][w];
	return 0;
}