USACO Silver 2017 February - Why Did the Cow Cross the Road I

Official Analysis

There is more than one possible greedy strategy (though all of them involve sorting the animals by time). Here, we follow the approach described by the analysis.

#include <bits/stdc++.h>
using namespace std;
 
using ll = long long;
using ld = long double;
using db = double; 
using str = string; // yay python!

using pi = pair<int,int>;
using pl = pair<ll,ll>;