View Compilation Error

0_0_2323893_31939.cpp: In function `int main()':
0_0_2323893_31939.cpp:14: error: `gets' undeclared (first use this function)
0_0_2323893_31939.cpp:14: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2323893_31939.cpp:52: error: `printf' undeclared (first use this function)