View difference between Paste ID: zqEPbntG and q8GPHMyG

-#include <bits/stdc++.h>
+///BIJON SAHA DURJOY
 // SUST_SWE19
 #include<bits/stdc++.h>
 using namespace std;
 
-    stack<char> st;
+
-    bool ans = true;
+
-    int n = s.size();
+     stack<char> stk;
-    for (int i = 0; i < n; i++)
+     bool ans = true;
-    {
+     long long int n,i;
-        if (s[i] == '(' or s[i] == '{' or s[i] == '[')
+     n= s.size();
      for(i=0; i<n; i++)
-            st.push(s[i]);
+     {
         if(s[i] == '(' || s[i] == '[')
-        else if (s[i] == ')')
+
              stk.push(s[i]);
-            if (!st.empty() and st.top() == '(')
+
-            {
+        else if(s[i] == ')')
-                st.pop();
+
-            }
+             if(!stk.empty() && stk.top() == '(')
-            else
+             {
-            {
+                  stk.pop();
-                ans = false;
+             }
-                break;
+
-            }
+        else if(s[i] == ']')
         {
-        else if (s[i] == '}')
+             if(!stk.empty() && stk.top() == '[')
              {
-            if (!st.empty() and st.top() == '{')
+                  stk.pop();
-            {
+             }
-                st.pop();
+
-            }
+        else
-            else
+
-            {
+             ans = false;
-                ans = false;
+             break;
-                break;
+
-            }
+     }
      if(!stk.empty())
-    }
+     {
-    if(!st.empty())
+          return false;
-    return false;
+     }
      else
-    return true;
+     {
           return true;
      }
 }
 int main()
-    int t;
+
-    cin >> t;
+     long long int t,i;
-    string s;
+     cin>>t;
-    while (t--)
+     while(t--)
-    {
+     {
-        cin >> s;
+          string s;
-        if(isvalid(s))
+          cin>>s;
-        cout<<"Yes"<<"\n";
+          if(isvalid(s))
-        else
+          {
-        cout<<"No"<<"\n";
+               cout<<"Yes"<<endl;
-    }
+          }
           else
           {
                cout<<"No"<<endl;
           }
      }
      return 0;
 }