运行 ID: 108347

Main.cc: In function ‘int main()’:
Main.cc:38:5: error: ‘sort’ was not declared in this scope
     sort(x + 1, x + b + 1, cmpx);
     ^~~~
Main.cc:38:5: note: suggested alternative: ‘qsort’
     sort(x + 1, x + b + 1, cmpx);
     ^~~~
     qsort