View Compilation Error

0_0_13038838_8239.cpp:1:10: #include expects "FILENAME" or <FILENAME>
0_0_13038838_8239.cpp:2:10: #include expects "FILENAME" or <FILENAME>
0_0_13038838_8239.cpp:3:10: #include expects "FILENAME" or <FILENAME>
0_0_13038838_8239.cpp: In function `int main()':
0_0_13038838_8239.cpp:9: error: `scanf' undeclared (first use this function)
0_0_13038838_8239.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_13038838_8239.cpp:12: error: `log10' undeclared (first use this function)
0_0_13038838_8239.cpp:13: error: `floor' undeclared (first use this function)
0_0_13038838_8239.cpp:14: error: `pow' undeclared (first use this function)
0_0_13038838_8239.cpp:14: error: `printf' undeclared (first use this function)