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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main ()
  5. {
  6.     int n;
  7.     cin>>n;
  8.     int dem_0 = 0;
  9.     int dem_1 = 0;
  10.     int tmp;
  11.     for (int i=1; i<=n; i++)
  12.     {
  13.         cin>>tmp;
  14.         if (tmp==0)
  15.             dem_0++;
  16.         else
  17.             dem_1++;
  18.     }
  19.     if (dem_0==1)
  20.         cout<<"YES";
  21.     else
  22.         cout<<"NO";
  23.     return 0;
  24. }
Success #stdin #stdout 0s 4412KB
comments (?)
stdin 
3
1 0 1
stdout 
YES
https://ideone.com/bEBHJ5
o- P166SUMI - ROUND 6I - Rick Flag
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
secret

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