View Compilation Error

0_0_29922351_12599.cpp: In function 'void dfs(long long int, int, int, int)':
0_0_29922351_12599.cpp:45:13: error: 'k' was not declared in this scope
     if(sum==k&&ans>t)
             ^
0_0_29922351_12599.cpp:47:13: error: 'k' was not declared in this scope
     if(sum>=k||pos>top)
             ^
0_0_29922351_12599.cpp:47:20: error: 'top' was not declared in this scope
     if(sum>=k||pos>top)
                    ^
0_0_29922351_12599.cpp:51:36: error: 'k' was not declared in this scope
         if(t>ans/p[pos]||sum*(i+1)>k)
                                    ^
0_0_29922351_12599.cpp:54:12: error: 'k' was not declared in this scope
         if(k%(sum*(i+1))==0)
            ^