ACM:SCU 4437 Carries - 水题】的更多相关文章

SCU 4437  Carries Time Limit:0MS     Memory Limit:0KB     64bit IO Format:%lld & %llu  Practice  Description Carries frog has nn integers a1,a2,…,ana1,a2,…,an, and she wants to add them pairwise. Unfortunately, frog is somehow afraid of carries (进位).…
题意:问任意两对ai,aj相加的总进位数为多少.比如5,6,95分为(5,6)(5,95)(6,95),进位数 = 1 + 2 + 2 = 5 思路:显然暴力是会超时的.我们可以知道总进位数等于每一位进位数之和,所以我们可以把10个位数的进位分开算,每次%10^k,排序后用二分找到刚好的位置,然后算总数. 好像是唯一一次写二分一次A的题. 代码: #include<iostream> #include<algorithm> #include<cstdio> #inclu…
ACM小白...非常费劲儿的学习中,我觉得目前我能做出来的都可以划分在水题的范围中...不断做,不断总结,随时更新 POJ: 1004 Financial Management 求平均值 杭电OJ: 1001  Sum Problem 相加1002  A + B Problem II 模拟人工加法-精度计算 1008 Elevator 很水,但是情况要考虑全面…
CSU 1772 漫漫上学路 Time Limit: 1000MS   Memory Limit: 131072KB   64bit IO Format: %lld & %llu Submit Status Description 对于csuxushu来说,能够在CSU(California State University)上学是他一生的荣幸.CSU校园内的道路设计的十分精巧,由n+1条水平道路和n+1条竖直道路等距交错而成,充分体现了校园深厚的文化底蕴.然而不幸的是CS市每到夏季,天降大雨,…
4436: Easy Math Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.scu.edu.cn/soj/problem.action?id=4436 Description Given n integers a1,a2,…,an, check if the sum of their square root a1+a2+…+an is a integer. Input The input consists of multiple…
分析:水题. #include<iostream> using namespace std; #define N 5050 char a[N],b[N],tmp[N]; void Read(char p[]) { getchar(); gets(tmp); while(gets(tmp)) { if(strcmp(tmp,"END")==0) break; if(strlen(tmp)!=0) strcat(p,tmp); strcat(p,"\n");…
Nasty Hacks Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3049    Accepted Submission(s): 2364 Problem Description You are the CEO of Nasty Hacks Inc., a company that creates small pieces of…
最近在尝试做acm试题,刚刚是1001题就把我困住了,这是题目: Problem Description In this problem, your task is to calculate SUM(n) = 1 + 2 + 3 + ... + n.   Input The input will consist of a series of integers n, one integer per line   Output For each case, output SUM(n) in one…
LSS Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 128000/64000 KB (Java/Others) SubmitStatistic Next Problem Problem Description Time flies, four years passed, colleage is over. When I am about to leave, a xuemei ask me an ACM  problem, but…
2558: 游起来吧!超妹! Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 7  Solved: 3[Submit][Status][Web Board] Description 夏天到了,无聊的超妹跑到了落雪湖里抓鱼吃.结果,游到湖的正中 央时被湖边保安看到了,保安要抓住超妹.我们假设落雪湖是一个半径为r的圆形,超妹在圆形的正中心,速度为1.保安由于不会游泳所以只能沿着湖的边缘奔 跑,速度为n.因为超妹在陆地上的速度是很快的,所以我们假设只要超妹…