class Main {
/**
* Compute the dot product of two vectors
*
* @param v1
* The first vector
* @param v2
* The second vector
* @return v1 dot v2
**/
public static float dot(float[] v1, float[] v2) {
float res = 0;
for (int i = 0; i < v1.length; i++)
res += v1[i] * v2[i];
return res;
}
}