View Compilation Error

0_0_35463220_21831.cpp: In function 'long long int print_map(long long int)':
0_0_35463220_21831.cpp:15:39: error: 'm1' was not declared in this scope
     for(map<double,cost>::iterator it=m1.begin();it!=m1.end();it++)
                                       ^
0_0_35463220_21831.cpp: In function 'int main()':
0_0_35463220_21831.cpp:38:13: error: 'm1' was not declared in this scope
             m1[ai*bi] = ab;
             ^