qq_40760291的博客

去掉字符串中重复字符 #include<iostream> #include<string> using namespace std; int main() { string s; cin >> s; int len = s.size(); int tmp[500] = { 0,0 }; for (int i = 0; i < len; i++) { tmp[s[i]]++; } int i = 0, j = 0; for (int i

#include<iostream> #include<string> #include<stack> using namespace std; bool isVaild(string str) { int len = str.size(); stack<char> stacktmp; if (str.size() % 2 == 1) //当给字符串的长度为单数是,这是不满足题意,返回false return false; for (cha.