运行 ID: 72516

Main.cc: In function ‘int main()’:
Main.cc:18:15: warning: statement has no effect [-Wunused-value]
          for(j>=0;){
              ~^~~
Main.cc:18:19: error: expected primary-expression before ‘)’ token
          for(j>=0;){
                   ^
Main.cc:18:19: error: expected ‘;’ before ‘)’ token
Main.cc:19:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
              if(arr[i]=arr[j]){
                 ~~~~~~^~~~~~~
Main.cc:29:2: error: expected ‘}’ at end of input
  }
  ^