13 lines
177 B
C++
13 lines
177 B
C++
#include<iostream>
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#include<set>
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#include<algorithm>
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using namespace std;
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set<int> st;
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int main()
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{
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int x;
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while(cin>>x) st.insert(x%42);
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cout<<st.size()<<endl;
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return 0;
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}
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