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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. const int maxn = 1e6+7;
  4. int x,cnt(0);
  5. int d[maxn];
  6. int main()
  7. {
  8.     while(cin >> x)
  9.     {
  10.         if(d[x]==0)
  11.         {
  12.             d[x]++;
  13.             cnt++;
  14.         }
  15.     }
  16.     cout << cnt;
  17. }
Success #stdin #stdout 0.01s 5548KB
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stdin
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2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
stdout
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1
https://ideone.com/xVbRRA
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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