View Compilation Error

0_0_33434400_8178.cpp:81:9: error: '::main' must return 'int'
 ll main()
         ^
0_0_33434400_8178.cpp: In function 'int main()':
0_0_33434400_8178.cpp:130:24: error: 'prllf' was not declared in this scope
     prllf("%lld",ans[i]);
                        ^