View Compilation Error

0_0_16375371_31413.cpp: In function 'int main()':
0_0_16375371_31413.cpp:46:17: error: 'present' was not declared in this scope
             if (present)
                 ^
0_0_16375371_31413.cpp:48:44: error: 'sort' was not declared in this scope
                     if ( (a[i]-a[present])*sort<0 )
                                            ^
0_0_16375371_31413.cpp:50:25: error: 'out' was not declared in this scope
                         out++;
                         ^
0_0_16375371_31413.cpp:59:25: error: 'out' was not declared in this scope
                         out++;
                         ^
0_0_16375371_31413.cpp:70:16: error: 'out' was not declared in this scope
             if(out>1)
                ^
0_0_16375371_31413.cpp: At global scope:
0_0_16375371_31413.cpp:76:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_16375371_31413.cpp:77:1: error: expected declaration before '}' token
 }
 ^