nyoj-2

#include<iostream>#include<vector>#include<string>#include<fstream>using namespace std;int main(){int n;//fstream cin("d:\\test.txt");cin>>n;while(n--){vector<char> vec;string ch;vec.push_back(' ');cin>>ch;for(int i=0;i<ch.length();i++){vec.push_back(ch[i]);    if((*(vec.end()-2)=='[' && ch[i]==']') || (*(vec.end()-2)=='(' && ch[i]==')')){vec.pop_back();vec.pop_back();}}if(vec.size()==1)cout<<"Yes"<<endl;elsecout<<"No"<<endl;}return 0;}