View Compilation Error

0_0_24145827_27499.cpp: In function 'int main()':
0_0_24145827_27499.cpp:5:11: error: 'p' was not declared in this scope
 for(int i=p;i<=17;i++)
           ^
0_0_24145827_27499.cpp:7:9: error: 'll' was not declared in this scope
         ll t=num*prime[i];
         ^
0_0_24145827_27499.cpp:8:9: error: 'ans' was not declared in this scope
         ans+=flag*(ll)pow(n,1.0/t);
         ^
0_0_24145827_27499.cpp:8:14: error: 'flag' was not declared in this scope
         ans+=flag*(ll)pow(n,1.0/t);
              ^
0_0_24145827_27499.cpp:9:12: error: 't' was not declared in this scope
         if(t>=60) return;
            ^
0_0_24145827_27499.cpp:9:19: error: return-statement with no value, in function returning 'int' [-fpermissive]
         if(t>=60) return;
                   ^
0_0_24145827_27499.cpp:10:17: error: 't' was not declared in this scope
         dfs(i+1,t,-flag);
                 ^
0_0_24145827_27499.cpp:10:24: error: 'dfs' was not declared in this scope
         dfs(i+1,t,-flag);
                        ^