View Compilation Error

0_0_20775745_20823.cpp:1:31: error: stray '#' in program
 <span style="font-size:18px;">#include <cstdio>
                               ^
0_0_20775745_20823.cpp:1:1: error: expected unqualified-id before '<' token
 <span style="font-size:18px;">#include <cstdio>
 ^
0_0_20775745_20823.cpp: In function 'int main()':
0_0_20775745_20823.cpp:48:26: error: 'scanf' was not declared in this scope
  while(scanf("%d%d",&l,&k)!=EOF){
                          ^
0_0_20775745_20823.cpp:48:29: error: 'EOF' was not declared in this scope
  while(scanf("%d%d",&l,&k)!=EOF){
                             ^
0_0_20775745_20823.cpp:49:31: error: 'printf' was not declared in this scope
   if(l<=4)printf("%d\n",a[l]%k);
                               ^
0_0_20775745_20823.cpp:52:30: error: 'printf' was not declared in this scope
    printf("%d\n",ans.getr()%k); 
                              ^
0_0_20775745_20823.cpp: At global scope:
0_0_20775745_20823.cpp:56:1: error: expected unqualified-id before '<' token
 </span>
 ^