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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define FR0(i,N) for(i=0;i<(N);i++)
  4. #define FR1(i,N) for(i=1;i<=(N);i++)
  5. #define FRN(i,k,N) for(i=k;i<(N);i++)
  6. #define pf printf
  7. #define db double
  8. #define max3(a,b,c) max(max(a,b),c)
  9. #define min3(a,b,c) min(min(a,b),c)
  10. #define sci(n) scanf("%d",&n)
  11. #define scl(n) scanf("%lld",&n)
  12. #define scf(n) scanf("%f",&n)
  13. #define scd(n) scanf("%lf",&n)
  14. #define scs(s) scanf("%s",&s)
  15. #define scll(n) scanf("%%I64d",&n)
  16. #define PI acos(-1.0)
  17. #define LL long long
  18. #define MX 1000005
  19. #define MOD 1000000007
  20. typedef long long int ll;
  21. bool status[1100002];
  22.  
  23. int main()
  24. {
  25.     int test;
  26.     string str;
  27.     //stack<int>mystack;
  28.     cin>>test;
  29.     //getline(cin,str);
  30.     getchar();
  31.     while(test--)
  32.     {
  33.         //mystack.clear();
  34.         getline(cin,str);
  35.         stack<char>mystack;
  36.         for(int i=0;i<str.size();i++)
  37.         {
  38.             if(!mystack.empty() && str[i]==')' && mystack.top()=='(')
  39.             {
  40.                 mystack.pop();
  41.             }
  42.             else if(!mystack.empty() && str[i]==']' && mystack.top()=='[')
  43.             {
  44.                 mystack.pop();
  45.             }
  46.             else
  47.             {
  48.                 mystack.push(str[i]);
  49.             }
  50.         }
  51.         if(mystack.empty())
  52.         {
  53.             cout<<"Yes"<<endl;
  54.         }
  55.         else
  56.         {
  57.             cout<<"No"<<endl;
  58.         }
  59.     }
  60. }
  61.  
  62.  
  63.  
Success #stdin #stdout 0s 4492KB
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Yes
No
Yes
https://ideone.com/lKd9RT
language:
C++14 (clang 8.0)
created:
8 years ago
visibility:
public

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