0_0_38500640_28960.cpp: In function 'int SG(int)':
0_0_38500640_28960.cpp:50:10: error: 'class std::map<int, int>' has no member named 'contains'
if (_SG.contains(x))
^
0_0_38500640_28960.cpp:62:11: error: 'class std::set<int>' has no member named 'contains'
if (!st.contains(i))
^
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