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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. int a, b, c;
  6. cin >> a >> b >> c;
  7. if ( a + b > c && a + c > b && b + c > a ) cout << " YES ";
  8. else cout << " NO ";
  9. return 0;
  10. }
Success #stdin #stdout 0s 5320KB
stdin
3 4 5
stdout
 YES