Submission #334694

#	Time	Username	Problem	Language	Result	Execution time	Memory
334694		blue	말 (IOI15_horses)	C++17	Compilation error	0 ms	0 KiB

horses

int mod = 1e9 + 7;

int N;
int* X;
int* Y;

int answer()
{
    long long product_X[N];
    product_X[0] = X[0];
    for(int i = 1; i < N; i++) product_X[i] = (product_X[i-1] * X[i]) % mod;

    int y = 0;
    int res = 0;
    for(int i = N-1; i >= 0; i--)
    {
        y = max(y, Y[i]);
        res = max(res, (product_X[i] * y) % mod);
    }
    return res;
}

int init(int n, int x[], int y[])
{
    N = n;
    X = x;
    Y = y;

    return answer();
}

int updateX(int pos, int val)
{
    X[pos] = val;
    return answer();
}

int updateY(int pos, int val)
{
    Y[pos] = val;
    return answer();
}

Compilation message (stderr)

horses.cpp: In function 'int answer()':
horses.cpp:17:13: error: 'max' was not declared in this scope
   17 |         y = max(y, Y[i]);
      |             ^~~