View Compilation Error

0_0_20580309_22207.c:6:13: error: expected declaration specifiers or '...' before '*' token
   double *p,*k,sum,n;
             ^
0_0_20580309_22207.c:6:16: error: unknown type name 'sum'
   double *p,*k,sum,n;
                ^
0_0_20580309_22207.c:6:20: error: unknown type name 'n'
   double *p,*k,sum,n;
                    ^
0_0_20580309_22207.c:7:3: error: expected declaration specifiers or '...' before 'while'
   while(scanf("%d",&m)!=EOF){
   ^
0_0_20580309_22207.c:19:1: error: expected ';', ',' or ')' before '}' token
 }
 ^