View Compilation Error

0_0_31073407_25294.cpp:8:1: error: 'map' does not name a type
 map<string,int>p;
 ^
0_0_31073407_25294.cpp: In function 'int main()':
0_0_31073407_25294.cpp:12:2: error: 'p' was not declared in this scope
  p["rat"]=1;
  ^