题目链接:UVA - 11039 题意描述:建筑师设计房子有两条要求:第一,每一层楼的大小一定比此层楼以上的房子尺寸要大:第二,用蓝色和红色为建筑染色,每相邻的两层楼不能染同一种颜色.现在给出楼层数量和每层楼的尺寸(楼层尺寸的大小没有按照顺序给出),求出满足这样要求的最大楼层数. 算法分析:把楼层尺寸按照从大到小排序,然后遍历一次的同时记录相邻楼层所染颜色不同,把不满足要求的楼层去掉即可. #include<iostream> #include<cstdio> #include&l…

题目 https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=1980 题意 n个数,要求正负相间,绝对值增长,问n个数能组成的这样数列最长多长 思路 明显,分成正负两组,挨个在两组内取最小,直到不能取就行 代码 #include <algorithm> #include <cassert> #include <cma…

UVA 11636 Hello World 二的幂答案就是二进制长度减1,不是二的幂答案就是是二进制长度. #include<cstdio> int main() { ; ){ ; ) r++; printf("Case %d: %d\n",++kas,r); } ; } LA 3602 DNA Consensus String 贪心构造,每一位上选出现次数最多的. #include<bits/stdc++.h> using namespace std; ,ma…

水题一题,按绝对值排序后扫描一片数组(判断是否异号,我是直接相乘注意中间值越界)即可. 感觉是让我练习sort自定义比较函数的. #include<cstdio> #include<cmath> #include<algorithm> using namespace std; const int MAXN=500000+10; int a[MAXN]; bool compare(const int &a,const int &b) { return ab…

题意:给定n个非0绝对值不相同的数,让他们排成一列,符号交替但绝对值递增,求最长的序列长度. 析:我个去简单啊,也就是个水题.首先先把他们的绝对值按递增的顺序排序,然后呢,挨着扫一遍,只有符号不同才计数,easy!!! 代码如下: #include <iostream> #include <cstdio> #include <cmath> #include <algorithm> using namespace std; const int maxn = 5…

题目大意:n个绝对值各不相同的非0整数,选出尽量多的数,排成一个序列,使得正负号交替且绝对值递增. 分析:按照绝对值大小排一次序,然后扫描一次,顺便做个标记即可. #include<cstdio>#include<algorithm>#include<cmath>using namespace std; int cmp(int a,int b){ return abs(a)<abs(b);}int main(){ int cas,a[100000],n; scan…

题目链接 本质上是DP,但是俩变量就搞定了. #include <cstdio> #include <cstring> #include <algorithm> using namespace std; ]; bool cmp(int a,int b) { ) a = -a; ) b = -b; return a < b; } int main() { int t,n,p1,p2,i; scanf("%d",&t); while(t--…

  Building designing  An architect wants to design a very high building. The building will consist of some floors, and each floor has a certain size. The size of a floor must be greater than the size of the floor immediately above it. In addition, th…

UVA11039-Building designing Time limit: 3.000 seconds An architect wants to design a very high building. The building will consist of some floors, and each floor has a certain size. The size of a floor must be greater than the size of the floor immediate…

绝对值排序 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 37570    Accepted Submission(s): 18394 Problem Description 输入n(n<=100)个整数,按照绝对值从大到小排序后输出.题目保证对于每一个测试实例,所有的数的绝对值都不相等.   Input 输入数据有多组,每组占一行,每…