View Compilation Error

722409_0_0_19597.cpp:2:21: iostrea.h: No such file or directory
722409_0_0_19597.cpp:4: error: `main' must return `int'
722409_0_0_19597.cpp: In function `int main(...)':
722409_0_0_19597.cpp:5: error: `scanf' undeclared (first use this function)
722409_0_0_19597.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
722409_0_0_19597.cpp:5: error: `EOF' undeclared (first use this function)
722409_0_0_19597.cpp:6: error: `printf' undeclared (first use this function)