http://acm.hdu.edu.cn/showproblem.php?pid=6562 题意: q次操作 1.将第l~r个数的左边和和右边都加上一个数d, 使得这个数变成 dsiddsid的形式 2.询问区间和. 题解:对于一个数字x若执行第一个操作则   则若对于一个区间sum(l,r)执行第一个操作则   设  则便可以用线段树去维护这两个东西便可,这里只考虑了d是一位数的情况,但是在线段树下传标记的过程中可能一个区间多次执行第一个操作,那么wrap的d便不是一位数,而且左右两边的d是…

2018 CCPC 吉林站 H Lovers 传送门:https://www.spoj.com/problems/LIS2/en/ 题意: q次操作 1.将第l~r个数的左边和和右边都加上一个数d, 使得这个数变成 \(ds_id\)的形式 2.询问区间和 题解: 线段树题 这个update操作不好维护,我们来冷静分析一下 对于一个数x,他的长度为len,我们在他后面加上一个数d,那么他的长度就变成了len+1,这个数x就变成了\(x*10+d\) 同理,在前面加上一个数,这个数x就变成了\(d…

2018 CCPC 桂林站(upc复现赛)补题 G.Greatest Common Divisor(思维) 求相邻数的差值的gcd,对gcd分解素因子,对所有的素因子做一次遍历,找出最小答案. 几个样例: ans : 0 1 0 2 33 6 91112211 76 #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> #include<cmath> #…

Weak Pair Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 439    Accepted Submission(s): 155 Problem Description You are given a rooted tree of N nodes, labeled from 1 to N. To the ith node a…

Adding New Machine Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1428    Accepted Submission(s): 298 Problem Description Incredible Crazily Progressing Company (ICPC) suffered a lot with the…

Assign the task Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1647    Accepted Submission(s): 753 Problem Description There is a company that has N employees(numbered from 1 to N),every emplo…

Queue-jumpers Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3348    Accepted Submission(s): 904 Problem Description Ponyo and Garfield are waiting outside the box-office for their favorite mo…

Sequence operation Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 7502    Accepted Submission(s): 2233 Problem Description lxhgww got a sequence contains n characters which are all '0's or '1…

Transformation Time Limit: 15000/8000 MS (Java/Others)    Memory Limit: 65535/65536 K (Java/Others) Total Submission(s): 4095    Accepted Submission(s): 1008 Problem Description Yuanfang is puzzled with the question below:  There are n integers, a1,…

威威猫系列故事——晒被子 Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 1592    Accepted Submission(s): 444 Problem Description 因为马拉松初赛中吃鸡腿的题目让不少人抱憾而归,威威猫一直觉得愧对大家,这几天他悄悄搬到直角坐标系里去住了. 生活还要继续,太阳也照常升起,今天,威威猫在…