View Compilation Error

798095_0_0_1881.cpp:1:22:  iostream : No such file or directory
798095_0_0_1881.cpp: In function `int main()':
798095_0_0_1881.cpp:6: error: `scanf' undeclared (first use this function)
798095_0_0_1881.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
798095_0_0_1881.cpp:6: error: `EOF' undeclared (first use this function)
798095_0_0_1881.cpp:11: error: `cin' undeclared (first use this function)
798095_0_0_1881.cpp:15: error: `cout' undeclared (first use this function)
798095_0_0_1881.cpp:16: error: `endl' undeclared (first use this function)