View Compilation Error

0_0_25988895_31071.cpp:59:53: error: expected ',' or '...' before 'pan'
 long long build(long long z, long long y,long longt pan) 
                                                     ^
0_0_25988895_31071.cpp: In function 'long long int build(long long int, long long int, long int)':
0_0_25988895_31071.cpp:61:15: error: expected initializer before 'zhong'
    long longt zhong=(z+y)>>1;
               ^
0_0_25988895_31071.cpp:62:9: error: 'pan' was not declared in this scope
    ppan=pan;
         ^
0_0_25988895_31071.cpp:63:24: error: 'zhong' was not declared in this scope
    nth_element(jc+z,jc+zhong,jc+y,cmp);
                        ^