View Compilation Error

0_0_22463591_1477.cpp: In function 'int main(int, const char**)':
0_0_22463591_1477.cpp:14:19: error: expected primary-expression before '(' token
         ll cnt2=ll(log2(n)ceil)+ll(log2(m)ceil)+ll(log2(k)ceil);
                   ^
0_0_22463591_1477.cpp:14:27: error: expected ')' before 'ceil'
         ll cnt2=ll(log2(n)ceil)+ll(log2(m)ceil)+ll(log2(k)ceil);
                           ^
0_0_22463591_1477.cpp:14:35: error: expected primary-expression before '(' token
         ll cnt2=ll(log2(n)ceil)+ll(log2(m)ceil)+ll(log2(k)ceil);
                                   ^
0_0_22463591_1477.cpp:14:43: error: expected ')' before 'ceil'
         ll cnt2=ll(log2(n)ceil)+ll(log2(m)ceil)+ll(log2(k)ceil);
                                           ^
0_0_22463591_1477.cpp:14:51: error: expected primary-expression before '(' token
         ll cnt2=ll(log2(n)ceil)+ll(log2(m)ceil)+ll(log2(k)ceil);
                                                   ^
0_0_22463591_1477.cpp:14:59: error: expected ')' before 'ceil'
         ll cnt2=ll(log2(n)ceil)+ll(log2(m)ceil)+ll(log2(k)ceil);
                                                           ^