View Compilation Error

0_0_2206718_14516.cpp: In function `int main()':
0_0_2206718_14516.cpp:4: error: `scanf' undeclared (first use this function)
0_0_2206718_14516.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2206718_14516.cpp:22: error: `printf' undeclared (first use this function)
0_0_2206718_14516.cpp: At global scope:
0_0_2206718_14516.cpp:26: error: expected declaration before '}' token