Yu-Gi-Oh! Time Limit: 2000ms Memory Limit: 65536KB This problem will be judged on HDU. Original ID: 538364-bit integer IO format: %I64d      Java class name: Main   "Yu-Gi-Oh!", also known as "Dueling Monsters", is a popular trading ca…

tree Time Limit: 8000ms Memory Limit: 262144KB This problem will be judged on HDU. Original ID: 539064-bit integer IO format: %I64d      Java class name: Main   Given a rooted tree(node 1 is the root) with n nodes. The ithnode has a positive value vi…

The path Time Limit: 2000ms Memory Limit: 65536KB This problem will be judged on HDU. Original ID: 538564-bit integer IO format: %I64d      Java class name: Main Special Judge   You have a connected directed graph.Let d(x) be the length of the shorte…

Boring Class Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 900    Accepted Submission(s): 247 Problem Description Mr. Zstu and Mr. Hdu are taking a boring class , Mr. Zstu comes up with a prob…

RGCDQ Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1652    Accepted Submission(s): 696 Problem Description Mr. Hdu is interested in Greatest Common Divisor (GCD). He wants to find more and mo…

CRB and Apple Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 421    Accepted Submission(s): 131 Problem Description In Codeland there are many apple trees.One day CRB and his girlfriend decide…

CRB and Queries Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 533    Accepted Submission(s): 125 Problem DescriptionThere are N boys in CodeLand.Boy i has his coding skill Ai.CRB wants to k…

Just A String Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 643    Accepted Submission(s): 182 Problem Descriptionsoda has a random string of length n which is generated by the following alg…

Easy Sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 766    Accepted Submission(s): 208 Problem Descriptionsoda has a string containing only two characters -- '(' and ')'. For every c…

Leader in Tree Land Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 447    Accepted Submission(s): 185 Problem DescriptionTree land has n cities, connected by n−1 roads. You can go to any city f…