View Compilation Error

0_0_30474881_29792.cpp: In function 'int main()':
0_0_30474881_29792.cpp:10:23: error: invalid operands of types 'double' and 'int' to binary 'operator%'
         double now=(h%12)*60*60+m*60+s;
                       ^
0_0_30474881_29792.cpp:16:31: error: invalid operands of types 'double' and 'int' to binary 'operator%'
                 double pre=(h%12)*60*60+m*60+s;
                               ^