0_0_38809858_20292.cpp:57:1: error: 'unordered_map' does not name a type
57 | unordered_map<int, int> mp;
| ^~~~~~~~~~~~~
0_0_38809858_20292.cpp: In function 'll get_phiS(int)':
0_0_38809858_20292.cpp:60:13: error: 'mp' was not declared in this scope
60 | if (mp.count(n)) return mp[n];
| ^~
0_0_38809858_20292.cpp:66:16: error: 'mp' was not declared in this scope
66 | return mp[n] = res;
| ^~
|