Codeforces 1088E - Ehab and a component choosing problem题解链接https://lucien.ink题目链接https://codeforces.com/contest/1088/problem/E题目You're given a tree consisting of $n$ nodes. Every node $u$ has a we...
Codeforces 1082D - Maximum Diameter Graph - 贪心题解链接https://lucien.ink题目链接https://codeforces.com/contest/1082/problem/D题目Graph constructive problems are back! This time the graph you are asked to bui...
Codeforces 1082B - Vova and Trophies题解链接https://lucien.ink题目链接https://codeforces.com/contest/1082/problem/B题目 Vova has won $n$ trophies in different competitions. Each trophy is either g...