View Compilation Error

0_0_13040263_26539.cpp:1:10: #include expects "FILENAME" or <FILENAME>
0_0_13040263_26539.cpp:2:10: #include expects "FILENAME" or <FILENAME>
0_0_13040263_26539.cpp:3:10: #include expects "FILENAME" or <FILENAME>
0_0_13040263_26539.cpp:4:10: #include expects "FILENAME" or <FILENAME>
0_0_13040263_26539.cpp: In function `int main()':
0_0_13040263_26539.cpp:11: error: `scanf' undeclared (first use this function)
0_0_13040263_26539.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_13040263_26539.cpp:13: error: `printf' undeclared (first use this function)
0_0_13040263_26539.cpp:15: error: expected `)' before "else"
0_0_13040263_26539.cpp:16: error: non-lvalue in assignment
0_0_13040263_26539.cpp:16: error: `puts' undeclared (first use this function)