Function preprocess

Atcoder dp/N - Slimes.cpp:33–42

}

void preprocess(vector<int>& v, int n)
{
    for(int i = 1; i  <= n; i++)
    {
        for(int j = i; j <= n; j++)
        {
            sum[i][j] = v[j] + ((j == i) ? 0 : sum[i][j-1]);
        }
    }
}
int main() {
   int n;
   cin >> n ;