摘要：
Seasidehttp://acm.hdu.edu.cn/showproblem.php?pid=3665Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 802 Accepted Submission(s): 562 Problem DescriptionXiaoY is living in a big city, there are N towns in it and some towns near the sea. All these 阅读全文
摘要：
Rightmost Digithttp://acm.hdu.edu.cn/showproblem.php?pid=1061Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 21580 Accepted Submission(s): 8242 Problem DescriptionGiven a positive integer N, you should output the most right digit of N^N.InputThe 阅读全文
摘要：
Humble Numbershttp://acm.hdu.edu.cn/showproblem.php?pid=1058Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 10972 Accepted Submission(s): 4780 Problem DescriptionA number whose only prime factors are 2,3,5 or 7 is called a humble number. The sequ 阅读全文
摘要：
六种qsort排序方法<本文中排序都是采用的从小到大排序>一、对int类型数组排序int num[100];Sample:int cmp ( const void *a , const void *b ){ return *(int *)a - *(int *)b;}qsort(num,100,sizeof(num[0]),cmp);二、对char类型数组排序（同int类型）char word[100];Sample:int cmp( const void *a , const void *b ){ return *(char *)a - *(char *)b;}qsort(w.. 阅读全文
摘要：
FatMouse' Tradehttp://acm.hdu.edu.cn/showproblem.php?pid=1009Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 28122 Accepted Submission(s): 9028 Problem DescriptionFatMouse prepared M pounds of cat food, ready to trade with the cats guarding t 阅读全文
摘要：
小陈老师、雪人http://acm.hrbust.edu.cn/index.php?m=ProblemSet&a=showProblem&problem_id=1176Time Limit: 1000 MSMemory Limit: 65536 KTotal Submit: 79(22 users)Total Accepted: 32(14 users)Rating:Special Judge: YesDescription东北的冬季，尤其是过年的时候，小陈老师喜欢去堆雪人。 每个雪人主要由三个雪球构成：大雪球、中雪球、小雪球。 他已经准备好了N个雪球，半径分别等于r1, r2 阅读全文