View Compilation Error

0_0_1494465_17654.cpp:2:18: iosream: No such file or directory
0_0_1494465_17654.cpp: In function `int main()':
0_0_1494465_17654.cpp:11: error: `scanf' undeclared (first use this function)
0_0_1494465_17654.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1494465_17654.cpp:17: error: `printf' undeclared (first use this function)