View Compilation Error

0_0_38002789_17088.cpp: In function 'int main()':
0_0_38002789_17088.cpp:64:23: error: 'num' was not declared in this scope
         for(int i=0;i<num;i++)
                       ^
0_0_38002789_17088.cpp: At global scope:
0_0_38002789_17088.cpp:81:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_38002789_17088.cpp:82:1: error: expected declaration before '}' token
 }
 ^