# There are a total of numCourses courses you have to take, labeled from 0 to numCourses-1.

# Some courses may have prerequisites, for example to take course 0 you have to first take course 1, which is expressed as a pair: [0,1]

# Given the total number of courses and a list of prerequisite pairs, is it possible for you to finish all courses?


# Example 1:

# Input: numCourses = 2, prerequisites = [[1,0]]
# Output: true
# Explanation: There are a total of 2 courses to take.
# To take course 1 you should have finished course 0. So it is possible.
# Example 2:

# Input: numCourses = 2, prerequisites = [[1,0],[0,1]]
# Output: false
# Explanation: There are a total of 2 courses to take.
# To take course 1 you should have finished course 0, and to take course 0 you should
# also have finished course 1. So it is impossible.
