摘要： Stockbroker Grapevine Time Limit: 1000MSMemory Limit: 10000K Total Submissions: 15458Accepted: 8348 Description Stockbrokers are known to overreact to rumours. You have been contracted to develop a method of spreading disinformation amongst the stockbrokers to give your employer the tactical edge in 阅读全文

摘要： DNA Sorting Time Limit: 1000MSMemory Limit: 10000K Total Submissions: 52558Accepted: 20563 Description One measure of ``unsortedness'' in a sequence is the number of pairs of entries that are out of order with respect to each other. For instance, in the letter sequence ``DAABEC'', th 阅读全文

摘要： 487-3279 Time Limit: 2000MSMemory Limit: 65536K Total Submissions: 152444Accepted: 26004 Description Businesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word or phrase. For example, you can call the University of Waterloo 阅读全文

摘要： Frogger Time Limit: 1000MSMemory Limit: 65536K Total Submissions: 11751Accepted: 3932 Description Freddy Frog is sitting on a stone in the middle of a lake. Suddenly he notices Fiona Frog who is sitting on another stone. He plans to visit her, but since the water is dirty and full of tourists' s 阅读全文

摘要： Currency Exchange Time Limit: 1000MSMemory Limit: 30000K Total Submissions: 8399Accepted: 2758 Description Several currency exchange points are working in our city. Let us suppose that each point specializes in two particular currencies and performs exchange operations only with these currencies. Th 阅读全文

摘要： Word Amalgamation Time Limit: 1000MSMemory Limit: 10000K Total Submissions: 4967Accepted: 2608 Description In millions of newspapers across the United States there is a word game called Jumble. The object of this game is to solve a riddle, but in order to find the letters that appear in the answer i 阅读全文

摘要： Wormholes Time Limit: 2000MSMemory Limit: 65536K Total Submissions: 11918Accepted: 4178 Description While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-way path that delivers you to its destination at a time that i 阅读全文

摘要： 昂贵的聘礼 Time Limit: 1000MSMemory Limit: 10000K Total Submissions: 18289 Accepted: 4880 Description 年轻的探险家来到了一个印第安部落里。在那里他和酋长的女儿相爱了，于是便向酋长去求亲。酋长要他用10000个金币作为聘礼才答应把女儿嫁给他。探险家拿不出这么多金币，便请求酋长降低要求。酋长说："嗯，如果你能够替我弄到大祭司的皮袄，我可以只要8000金币。如果你能够弄来他的水晶球，那么只要5000金币就行了。"探险家就跑到大祭司那里，向他要求皮袄或水晶球，大祭司要他用金币来换，或者替他弄 阅读全文