A sequence of k strings s1, s2, ..., sk is called beautiful, if the concatenation of these strings is string q(formally, s1 + s2 + ... + sk = q) and the first characters of these strings are distinct. Find any beautiful sequence of strings or determine ...
1/*2题意:一个字符串分割成k段,每段开头字母不相同3水题:记录每个字母出现的次数,每一次分割把首字母的次数降为0,最后一段直接全部输出4*/5#include <cstdio>6#include <iostream>7#include <cstring>8#include <string>9#include <algorithm>10usingnamespacestd;1112constintMAXN = 1e2 +10;13constint...
strings x13956 2110A Fashionable Array implementation, sortings x17276 2109F Penguin Steps binary search, dfs and similar, flows, graphs, shortest paths x98 2109E Binary String Wowee combinatorics, dp, strings x740 2109D D/D/D dfs and similar, graphs, greedy, shortest...
ou should processmqueries over a setDof strings. Each query is one of three kinds: Add a stringsto the setD. It is guaranteed that the stringswas not added before. Delete a stringsfrom the setD. It is guaranteed that the stringsis in the setD. For the given stringsfind the number o...
CodeForces - 710F:String Set Queries (二进制分组 处理 在线AC自动机),oushouldprocessmqueriesoverasetDofstrings.Eachqueryisoneofthreekinds:Notethatyoushouldsolvetheprobleminonlinemode.Itmeans
Add a stringsto the setD. It is guaranteed that the stringswas not added before. Delete a stringsfrom the setD. It is guaranteed that the stringsis in the setD. For the given stringsfind the number of occurrences of the strings from the setD. If some stringpfromDhas several occurrences...
A sequence of k strings s1, s2, ..., sk is called beautiful, if the concatenation of these strings is string q (formally, s1 + s2 + ... + sk = q) and the first characters of these strings are distinct. Find any beautiful sequence of strings or determine ...
URL:http://codeforces.com/contest/722/problem/C 代码: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #include<bits/stdc++.h> #define ll long long #define N 100005 using namespace std; int n; ll s[N]; set< pair<int,int> > seg; multiset<ll> sum; void erase(int p){ set< ...
In brief, on the contests held by Codeforces rules you write solutions to the problems that are tested during the contest on a very small number of tests. Those who have passed that set of solution tests, their authors can block (refuse to resend the solutions of this task in future even...
The second line contains a non-empty string s, consisting of lowercase Latin letters, at most 100 characters long. The third line contains an integer n (0 ≤ n ≤ 20000)— the number of username changes. Each of the next n lines contains the actual changes, one per line. The...