View Compilation Error

0_0_17793673_7575.cpp: In function 'int main()':
0_0_17793673_7575.cpp:17:32: error: expected primary-expression before '%' token
             printf("%f\n",ans);%0
                                ^
0_0_17793673_7575.cpp:17:33: error: expected '}' at end of input
             printf("%f\n",ans);%0
                                 ^
0_0_17793673_7575.cpp:17:33: error: expected '}' at end of input
0_0_17793673_7575.cpp:17:33: error: expected '}' at end of input