View Compilation Error

396307_0_0_20108.cpp:1:9: #include expects "FILENAME" or <FILENAME>
396307_0_0_20108.cpp:3: error: `main' must return `int'
396307_0_0_20108.cpp: In function `int main(...)':
396307_0_0_20108.cpp:5: error: storage size of `a' isn't known
396307_0_0_20108.cpp:8: error: `scanf' undeclared (first use this function)
396307_0_0_20108.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
396307_0_0_20108.cpp:11: error: `printf' undeclared (first use this function)
396307_0_0_20108.cpp:12: error: `Printf' undeclared (first use this function)