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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	string s;
  6. 	cin >> s;
  7. 	if(s.length()%2 != 0) {cout << "NO\n"; return 0;}
  8. 	vector<int> P(26,0);
  9. 	for(int i =0; i < s.length(); i++) P[s[i]-'a']++;
  10. 	sort(P.begin(),P.end());
  11. 	cout << ((P[25]*2 <= s.length())?"YES\n":"NO\n");
  12. 	return 0;}
Success #stdin #stdout 0s 3480KB
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stdin
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abc
stdout
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NO
https://ideone.com/KM1MXo
SAU qual ACM 2014/15 E
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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