View Compilation Error

0_0_36556748_19435.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_36556748_19435.cpp: In function 'int main()':
0_0_36556748_19435.cpp:7:26: error: 'scanf' was not declared in this scope
       while(scanf("%d",&n)!=EOF)
                          ^
0_0_36556748_19435.cpp:7:29: error: 'EOF' was not declared in this scope
       while(scanf("%d",&n)!=EOF)
                             ^
0_0_36556748_19435.cpp:9:31: error: 'getchar' was not declared in this scope
                       getchar();
                               ^
0_0_36556748_19435.cpp:11:25: error: expected ';' before '{' token
                         { 
                         ^
0_0_36556748_19435.cpp:11:25: error: expected primary-expression before '{' token
0_0_36556748_19435.cpp:11:25: error: expected ')' before '{' token
0_0_36556748_19435.cpp:12:35: error: 'gets' was not declared in this scope
                             gets(c);
                                   ^
0_0_36556748_19435.cpp:31:49: error: 'printf' was not declared in this scope
                                printf("a:%d\n",a);
                                                 ^
0_0_36556748_19435.cpp:37:37: error: expected ')' before 'printf'
                                     printf("\n");
                                     ^