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Cod sursa(job #876399)
#include<fstream>
#include <math.h>
#define inf (1LL<<62)
using namespace std;
ifstream cin("podm.in");
ofstream cout("podm.out");
long long i, n, d[100000], a[10000][10000],k,j,l,m;;
int main()
{
cin>>n;
for(i=0;i<=n;i++)
cin>>d[i];
for(i=1;i<n;i++)
a[i][i+1]=d[i-1]*d[i]*d[i+1];
for(l=2;l<n;l++)
for(i=1;i<=n-l;i++)
{
j=i+l;
a[i][j]=inf;
for(k=i;k<j;k++)
{
a[i][j] = min(a[i][j],a[i][k]+a[k+1][j]+d[i-1]*d[j]*d[k]);
}
}
cout<<a[1][n];
return 0;
}