#loading library 
import numpy as np

# Create a random vector of coordinates
vec = np.random.rand(5, 2)

# Create an empty array to store the distances
distances = np.zeros((5, 5))

# Calculate the distances between all pairs of points using nested loops
for i in range(100):
    for j in range(i+1, 5):
        distances[i, j] = np.sqrt(((vec[i] - vec[j]) ** 2).sum())
        distances[j, i] = distances[i, j]

#printing result