View Compilation Error

0_0_8160180_29986.cpp:16: error: `main' must return `int'
0_0_8160180_29986.cpp: In function `int main(...)':
0_0_8160180_29986.cpp:18: error: `scanf' undeclared (first use this function)
0_0_8160180_29986.cpp:18: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8160180_29986.cpp:22: error: name lookup of `i' changed for new ISO `for' scoping
0_0_8160180_29986.cpp:20: error:   using obsolete binding at `i'
0_0_8160180_29986.cpp:31: error: `printf' undeclared (first use this function)