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Cod sursa(job #813248)
#include <fstream>
#define nrmare 100000000
using namespace std;
ifstream fin("podm.in");
ofstream fout("podm.out");
long long int mi[501][501],a[501];
int n;
void citire();
void pd();
int minim(int x, int y);
void afisare();
int main()
{
citire();
pd();
afisare();
return 0;
}
void citire()
{
int i;
fin>>n;
for(i=0;i<=n;i++)
fin>>a[i];
fin.close();
}
int minim(int x, int y)
{
if(x>y) return y;
return x;
}
void pd()
{
int i,x,j,k;
for(i=1;i<=n;++i)
{
mi[i][i]=0;
for(i=1;i<=n-1;++i)
{
mi[i][i+1]=a[i-1]*a[i]*a[i+1];
for(x=2;x<=n-1;++x)
{
for(i=1;i<=n-x;++i)
{ j=i+x;
mi[i][j]=nrmare;
for(k=i;k<=j-1;++k)
{
mi[i][j]=min(mi[i][j],mi[i][k]+mi[k+1][j]+a[i-1]*a[k]*a[j]);
}
}
}
}
}
}
void afisare()
{
fout<<mi[1][n]<<'\n';
fout.close();
}