View Compilation Error

0_0_31687039_18607.cpp:13:1: error: 'map' does not name a type
 map<string,int>
 ^
0_0_31687039_18607.cpp: In function 'int main()':
0_0_31687039_18607.cpp:74:9: error: 'read' was not declared in this scope
  N=read();
         ^