View Compilation Error

383944_0_0_15338.cpp: In function `int main()':
383944_0_0_15338.cpp:11: error: `scanf' undeclared (first use this function)
383944_0_0_15338.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
383944_0_0_15338.cpp:15: error: `printf' undeclared (first use this function)