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momo2345

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Aug 21st, 2020
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  1. // ********* Assalamualaikum****** IN the name of my Almighty****:):)***
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4. #define suni ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
  5. #define endl "\n"
  6. #define f(i,a,b) for(int i=a;i< b;i++)
  7. #define ff(i,a,b) for(int i= a;i>=b;i--)
  8. #define T int t; cin >>t; while(t--)
  9. #define vi  vector<int>
  10. #define vll vector<long long>
  11. #define vs vector<string>
  12. #define vp vector<pair
  13. #define pii pair<int,int>
  14. #define pb push_back
  15. #define mk make_pair
  16. #define b(a) a.begin(),a.end()
  17. #define rb(a) a.rbegin(),a.rend()
  18. #define I  int
  19. #define ll long long
  20. #define st string
  21. #define C char
  22. #define mn int main()
  23. #define fa(u,v) for(auto u:v)
  24. mn
  25. {
  26.     suni;
  27.     T
  28.     {
  29.         I n,p;
  30.         cin>>n;
  31.         vi v(n);
  32.         vi :: iterator it;
  33.         f(i,0,n)  cin>>v[i];
  34.         sort(b(v));
  35.         f(i,0,n-1){
  36.             if(abs(v[i]-v[i+1])<=1)
  37.              it=i-1;
  38.             v.erase(it);
  39.         }
  40.         if(v.size()>1) cout<<"NO"<<endl;
  41.         else cout<<"YES"<<endl;
  42.     }
  43.     }
  44. //*******Happy Coding*******???******
  45.  
  46.  
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