题意: 给定三种操作 1. add x 向序列中添加x,添加之后序列还保持有序 2. del x 删除序列中值为x的元素 3. sum 求下边模5等于3的元素和 思路: 直接暴力也可以过,就是看暴力写的好不好了.用数组直接暴力可过. 暴力代码: #include <cstdio> #include <cstring> #include <algorithm> using namespace std; ; typedef long long ll; int a[max…
题意: 刚开始有一个空集合.有三种操作: 1.往集合中加入一个集合中不存在的数 x 2.从集合中删除一个已经存在的数 x 3.计算集合的digest sum并输出. digest sum求法:将集合中所有数从小到大排序,得到a1<a2<...<an. digest sum = sum(ai) where i mod 5 = 3 数据范围: N ( 1 <= N <= 105 ) 1 <= x <= 109. For any "add x&qu…
Coder Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4838 Accepted Submission(s): 1853 Problem Description In mathematics and computer science, an algorithm describes a set of procedures…
Attack Time Limit: 5000/3000 MS (Java/Others) Memory Limit: 65768/65768 K (Java/Others)Total Submission(s): 2496 Accepted Submission(s): 788 Problem Description Today is the 10th Annual of “September 11 attacks”, the Al Qaeda is about to attack…
Man Down Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2030 Accepted Submission(s): 743 Problem Description The Game “Man Down 100 floors” is an famous and interesting game.You can enjoy t…
Problem Description In mathematics and computer science, an algorithm describes a set of procedures or instructions that define a procedure. The term has become increasing popular since the advent of cheap and reliable computers. Many companies now e…