# ---
# title: 1360. Number of Days Between Two Dates
# id: problem1360
# author: Tian Jun
# date: 2020-10-31
# difficulty: Easy
# categories: 
# link: <https://leetcode.com/problems/number-of-days-between-two-dates/description/>
# hidden: true
# ---
# 
# Write a program to count the number of days between two dates.
# 
# The two dates are given as strings, their format is `YYYY-MM-DD` as shown in
# the examples.
# 
# 
# 
# **Example 1:**
# 
#     
#     
#     Input: date1 = "2019-06-29", date2 = "2019-06-30"
#     Output: 1
#     
# 
# **Example 2:**
# 
#     
#     
#     Input: date1 = "2020-01-15", date2 = "2019-12-31"
#     Output: 15
#     
# 
# 
# 
# **Constraints:**
# 
#   * The given dates are valid dates between the years `1971` and `2100`.
# 
# 
## @lc code=start
using LeetCode

## add your code here:
## @lc code=end
