View Compilation Error

0_0_18016457_20065.cpp:44:13: error: stray '\' in program
             ans=ans/2\n;
             ^
0_0_18016457_20065.cpp: In function 'int main()':
0_0_18016457_20065.cpp:44:23: error: expected ';' before 'n'
             ans=ans/2\n;
                       ^