运行 ID: 128588

Main.cc: In function ‘int read()’:
Main.cc:14:5: warning: this ‘while’ clause does not guard... [-Wmisleading-indentation]
     while ((c = getchar()) == ' ' || c == '\n' || c == '\r');
     ^~~~~
Main.cc:15:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘while’
         if (c == '-') flag = true;
         ^~
Main.cc: In function ‘int main()’:
Main.cc:49:21: error: expected primary-expression before ‘/’ token
     while (l <= r){ / 2;
                     ^