Victor and Proposition Time Limit: 6000ms Memory Limit: 524288KB This problem will be judged on HDU. Original ID: 542064-bit integer IO format: %I64d      Java class name: Main At the very beginning, Victor has a proposition, then this proposition pr…

HDU 5418 Victor and World Time Limit:2000MS     Memory Limit:131072KB     64bit IO Format:%I64d & %I64u After trying hard for many years, Victor has finally received a pilot license. To have a celebration, he intends to buy himself an airplane and fl…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5417 Problem Description Victor has a machine. When the machine starts up, it will pop out a ball immediately. After that, the machine will pop out a ball every w seconds. However, the machine has some f…

题目链接: hdu: http://acm.hdu.edu.cn/showproblem.php?pid=5418 bestcoder(中文): http://bestcoder.hdu.edu.cn/contests/contest_chineseproblem.php?cid=619&pid=1002 Victor and World  Accepts: 99  Submissions: 644  Time Limit: 4000/2000 MS (Java/Others)  Memory…

Victor and World Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 262144/131072 K (Java/Others) Total Submission(s): 1463    Accepted Submission(s): 682 Problem Description After trying hard for many years, Victor has finally received a pilot…

Victor and String Time Limit: 1000ms Memory Limit: 262144KB This problem will be judged on HDU. Original ID: 542164-bit integer IO format: %I64d      Java class name: Main Victor loves to play with string. He thinks a string is charming as the string…

http://acm.hdu.edu.cn/showproblem.php?pid=5419 题意 n个物品,标号1-n,物品i有权值wi.现在有m个区间[l,r],从中任意选三个区间i,j,k,求物品编号在区间[ max{li,lj,lk},min{ri,rj,rk} ]的权值和,问总期望是多少. 分析 选择区间的总情况数为C(m,3)=m*(m-1)*(m-2)/6.对于物品,其存在贡献的地方一定是包含它的区间,那么先求出包含每个物品的区间数,用区间覆盖的思想,假设有num个区间包含权值为w…

Victor and String Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 524288/262144 K (Java/Others) Total Submission(s): 163    Accepted Submission(s): 78 Problem Description Victor loves to play with string. He thinks a string is charming as the…

Victor and Toys Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/131072 K (Java/Others)Total Submission(s): 654    Accepted Submission(s): 219 Problem Description Victor has n toys, numbered from 1 to n. The beauty of the i-th toy is wi…

Victor and World Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 262144/131072 K (Java/Others)Total Submission(s): 891    Accepted Submission(s): 399 Problem Description After trying hard for many years, Victor has finally received a pilot li…