View Compilation Error

0_0_16379584_29343.cpp:2:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_16379584_29343.cpp:4:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_16379584_29343.cpp:6:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_16379584_29343.cpp:8:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_16379584_29343.cpp:3:1: error: expected unqualified-id before '<' token
 <iostream>
 ^
0_0_16379584_29343.cpp: In function 'int main()':
0_0_16379584_29343.cpp:20:25: error: 'scanf' was not declared in this scope
     while(scanf("%s",str)!=EOF)
                         ^
0_0_16379584_29343.cpp:20:28: error: 'EOF' was not declared in this scope
     while(scanf("%s",str)!=EOF)
                            ^
0_0_16379584_29343.cpp:43:46: error: 'printf' was not declared in this scope
         printf("%s [8] = 0.%s [10]\n",str,ans);
                                              ^