View Compilation Error

723267_0_0_1998.cpp: In function `int main(int, char**)':
723267_0_0_1998.cpp:11: error: `pow' undeclared (first use this function)
723267_0_0_1998.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
723267_0_0_1998.cpp:11: error: `sqrt' undeclared (first use this function)