View Compilation Error

0_0_39556070_22885.cpp: In function 'void solve()':
0_0_39556070_22885.cpp:64:34: error: expected ')' before 'a'
   64 |         for(int i = r;i >= l;i --a ){
      |            ~                     ^
      |                                  )
0_0_39556070_22885.cpp:64:35: error: expected ';' before ')' token
   64 |         for(int i = r;i >= l;i --a ){
      |                                   ^~
      |                                   ;