View Compilation Error

0_0_24055477_22203.cpp:1:30: error: stray '#' in program
 <pre name="code" class="cpp">#include<cstdio>  
                              ^
0_0_24055477_22203.cpp:1:1: error: expected unqualified-id before '<' token
 <pre name="code" class="cpp">#include<cstdio>  
 ^
0_0_24055477_22203.cpp: In function 'int main()':
0_0_24055477_22203.cpp:7:24: error: 'scanf' was not declared in this scope
     while(scanf("%d",&n)&&n)  
                        ^
0_0_24055477_22203.cpp:30:36: error: 'printf' was not declared in this scope
                 printf("%c",a[i][j]);  
                                    ^
0_0_24055477_22203.cpp:33:20: error: 'printf' was not declared in this scope
         printf("\n");  
                    ^