View Compilation Error

0_0_35811586_26175.cpp: In function 'void up(int)':
0_0_35811586_26175.cpp:16:28: error: expected primary-expression before '/' token
  tree[k].rs=tree[k*2+1].rs;/
                            ^
0_0_35811586_26175.cpp:20:33: error: expected primary-expression before '/' token
  if(tree[k*2].rn<tree[k*2+1].ln)/
                                 ^
0_0_35811586_26175.cpp:21:3: error: expected primary-expression before 'if'
   if(tree[k*2].ls==tree[k*2].c)
   ^
0_0_35811586_26175.cpp: At global scope:
0_0_35811586_26175.cpp:27:1: error: expected declaration before '}' token
 }
 ^