poj1651

dp

#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <cstring>
using namespace std;

#define maxn 105
#define inf 0x3f3f3f3f

int n;
int f[maxn];
int g[maxn][maxn];

int main()
{
    //freopen("t.txt", "r", stdin);
    scanf("%d", &n);
    for (int i = 0; i < n; i++)
        scanf("%d", &f[i]);
    memset(g, 0, sizeof(g));
    for (int i = 2; i < n; i++)
        for (int j = 0; j + i < n; j++)
        {
            g[j][j + i] = inf;
            for (int k = j + 1; k < j + i; k++)
                g[j][j + i] = min(g[j][j + i], g[j][k] + g[k][j + i] + f[k] * f[j] * f[j + i]);
        }
    printf("%d\n", g[0][n - 1]);
    return 0;
}