Problem Description Clarke is a patient with multiple personality disorder. One day, Clarke turned into a junior student and took a chemistry exam.  But he did not get full score in this exam. He checked his test paper and found a naive mistake, he w…

由于第一次打,只能在div2打.(这么好的机会还没AK真是丢人) T1 Clarke and chemistry 枚举题不解释(我不会告诉你我上来WA了四发的) T2 Clarke and points 经典题目,计算一下x+y,x-y的最大值和最小值算一下即可. T3 Clarke and MST 按位贪心,从高到低位尽量放1,用并查集判判是否可行. --------------------------------------------------------------------- 因为…

Clarke and chemistry Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 173    Accepted Submission(s): 95 Problem Description Clarke is a patient with multiple personality disorder. One day, Clark…

Clarke and chemistry Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 63    Accepted Submission(s): 33 Problem Description Clarke is a patient with multiple personality disorder. One day, Clarke…

后面的题目补不懂了 暴力 1001 Clarke and chemistry 这题也把我搞死了..枚举系数判断就行了 #include <cstdio> #include <algorithm> #include <cstring> #include <cmath> #include <map> int cnt[3][30]; bool error(void) { for (int i=0; i<2; ++i) { for (int j=0…

hdoj 4336 http://acm.hdu.edu.cn/showproblem.php?pid=4336 这是一道关于概率与期望的问题,其中   期望 =  1 / 概率 容斥原理  P =  - p1Up2    +     p1Up2Up3     +    p1U....p2*x+1    -   p1U....p2*x   (即  奇加 偶减) 关于二进制枚举:两层 for 循环 , 第一层用来枚举集合(一共 1 << x   (即 2^x)个集合),第二层用来枚举集合内的元素…

题目传送门 /* 题意:有n个点,用相同的线段去覆盖,当点在线段的端点才行,还有线段之间不相交 枚举+贪心:有坑点是两个点在同时一条线段的两个端点上,枚举两点之间的距离或者距离一半,尽量往左边放,否则往右边放, 判断一下,取最大值.这题二分的内容少 */ #include <cstdio> #include <algorithm> #include <cstring> #include <cmath> using namespace std; ; const…

Problem Description === Op tech briefing, 2002/11/02 06:42 CST === "The item is locked in a Klein safe behind a painting in the second-floor library. Klein safes are extremely rare; most of them, along with Klein and his factory, were destroyed in Wo…

Problem Description Happy new year to everybody! Now, I want you to guess a minimum number x betwwn 1000 and 9999 to let (1) x % a = 0; (2) (x+1) % b = 0; (3) (x+2) % c = 0; and a, b, c are integers between 1 and 100. Given a,b,c, tell me what is the…

Crazy TankTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5033    Accepted Submission(s): 1017 Problem DescriptionCrazy Tank was a famous game about ten years ago. Every child liked it. Time fli…