View Compilation Error

0_0_21687722_22109.cpp:13:9: error: '::main' must return 'int'
 ll main()
         ^
0_0_21687722_22109.cpp: In function 'int main()':
0_0_21687722_22109.cpp:65:20: error: 'prllf' was not declared in this scope
    prllf("%d\n",MAX);
                    ^