View Compilation Error

0_0_36364937_6995.cpp:48:1: error: 'map' does not name a type
 map<PII,LL> ma1;
 ^
0_0_36364937_6995.cpp: In function 'void solve()':
0_0_36364937_6995.cpp:53:5: error: 'ma1' was not declared in this scope
     ma1.clear();
     ^