View Compilation Error

70359_0_1066.cpp: In function `int main()':
70359_0_1066.cpp:5: error: `scanf' undeclared (first use this function)
70359_0_1066.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
70359_0_1066.cpp:25: error: `printf' undeclared (first use this function)