C. Sonya and Queries 题目连接: http://codeforces.com/contest/714/problem/C Description Today Sonya learned about long integers and invited all her friends to share the fun. Sonya has an initially empty multiset with integers. Friends give her t queries,…

题目链接:http://codeforces.com/contest/714/problem/C C. Sonya and Queries time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Today Sonya learned about long integers and invited all her friends to…

C. Sonya and Queries time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Today Sonya learned about long integers and invited all her friends to share the fun. Sonya has an initially empty multi…

题目链接 分析:01trie树,很容易就看出来了,也没什么好说的.WA了一发是因为没有看见如果数字位数大于01序列的时候01序列也要补全0.我没有晚上爬起来打,白天发现过的人极多. /*****************************************************/ //#pragma comment(linker, "/STACK:1024000000,1024000000") #include <map> #include <set>…

C. Sonya and Problem Wihtout a Legend 题目连接: http://codeforces.com/contest/713/problem/C Description Sonya was unable to think of a story for this problem, so here comes the formal description. You are given the array containing n positive integers. A…

E. Sonya and Problem Wihtout a Legend time limit per test 5 seconds memory limit per test 256 megabytes input standard input output standard output Sonya was unable to think of a story for this problem, so here comes the formal description. You are g…

C - Sonya and Problem Wihtout a Legend 思路:感觉没有做过这种套路题完全不会啊.. 把严格单调递增转换成非严格单调递增,所有可能出现的数字就变成了原数组出现过的数字. #include<bits/stdc++.h> #define LL long long #define fi first #define se second #define mk make_pair #define PII pair<int, int> #define PLI…

A: 题目大意: 在一个multiset中要求支持3种操作: 1.增加一个数 2.删去一个数 3.给出一个01序列,问multiset中有多少这样的数,把它的十进制表示中的奇数改成1,偶数改成0后和给出的01序列相等(比较时如果长度不等各自用0补齐) 题解: 1.我的做法是用Trie数来存储,先将所有数用0补齐成长度为18位,然后就是Trie的操作了. 2.官方题解中更好的做法是,直接将每个数的十进制表示中的奇数改成1,偶数改成0,比如12345,然后把它看成二进制数10101,还原成十进制是2…

题目传送门 /* 递推:用cnt记录前缀值,查询区间时,两个区间相减 */ #include <cstdio> #include <algorithm> #include <cmath> #include <cstring> using namespace std; ; const int INF = 0x3f3f3f3f; char s[MAXN]; int cnt[MAXN]; int main(void) //Codeforces Round #186…

C. Sonya and Queries time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Today Sonya learned about long integers and invited all her friends to share the fun. Sonya has an initially empty multi…