tasks for today: 1. 110.字符串接龙 2. 105.有向图的完全可达性 3. 106.岛屿的周长 ------------------------------------------------------------------------------------ 1. 110.字符串接龙 the shitty configuration on kc web i
原题: FJ has purchased N (1 <= N <= 2000) yummy treats for the cows who get money for giving vast amounts of milk. FJ sells one treat per day and wants to maximize the money he receives over a given
题目: Some of Farmer John's N cows (1 ≤ N ≤ 80,000) are having a bad hair day! Since each cow is self-conscious about her messy hairstyle, FJ wants to count the number of other cows that can see th