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- #include <iostream>
- #include<cstdio>
- #include<vector>
- #include<cstring>
- using namespace std;
- vector<char>paren;
- int main()
- {
- int num,count=0;
- scanf("%d",&num);
- getchar();
- for(int m=1;m<=num;m++)
- {
- count=0;
- char str[160];
- gets(str);
- int len=strlen(str);
- if(len==0)
- {
- printf("Yes\n");
- continue;
- }
- for(int i=0;i<len;i++)
- paren.push_back(str[i]);
- for(int i=0;i<(int)paren.size();)
- {
- for(int j=i+1;j<(int)paren.size();j++)
- {
- if(paren[i]=='('&& paren[j]==')')
- {
- paren.erase(paren.begin()+i);
- paren.erase(paren.begin()+j-1);
- i=-1;
- break;
- }
- else if(paren[i]=='['&& paren[j]==']')
- {
- paren.erase(paren.begin()+i);
- paren.erase(paren.begin()+j-1);
- i=-1;
- break;
- }
- else if(paren[j]==' ')
- {
- paren.erase(paren.begin()+j);
- j--;
- }
- }
- i++;
- if(paren.empty())
- {
- count=1;
- break;
- }
- else
- count = 0;
- }
- if(count==1)
- printf("Yes\n");
- else if(count==0)
- {
- paren.clear();
- printf("No\n");
- }
- }
- return 0;
- }
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