codeforces 589H - Tourist Guide（dfs）

B - Layer Cake **Time Limit:**6000MS **Memory Limit:**524288KB 64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 589B Description Dasha decided to bake a big and tasty layer cake. In order to do that she went shopping and bought n rectangular cake layers. The length and the width of the i-th cake layer were a__i and b__i respectively, while the height of each cake layer was equal to one.

M - Bounty hunter **Time Limit:**5000MS **Memory Limit:**65536KB 64bit IO Format:%lld & %llu Submit Status Description Bounty hunter is a hero who always moves along cities to earn money by his power. One day he decides to N cities one by one