View Compilation Error

0_0_13534539_30997.cpp: In function 'int main()':
0_0_13534539_30997.cpp:17:28: error: 'sort' was not declared in this scope
       sort(king,king+n,cmop);
                            ^
0_0_13534539_30997.cpp:68:13: error: expected '}' at end of input
     return 0;
             ^