View Compilation Error

0_0_30481438_14930.cpp:8:12: error: conflicting declaration 'long long int n [100000]'
 ll n[100000];
            ^
0_0_30481438_14930.cpp:4:4: note: previous declaration as 'long long int n'
 ll n,m;
    ^
0_0_30481438_14930.cpp: In function 'int main()':
0_0_30481438_14930.cpp:34:15: error: invalid types 'long long int[int]' for array subscript
   if(f[i]!=n[i])
               ^
0_0_30481438_14930.cpp:37:35: error: invalid types 'long long int[int]' for array subscript
    ans+=mi*(mi+1)/2*p[i]*(f[i]-n[i]);
                                   ^
0_0_30481438_14930.cpp:38:15: error: invalid types 'long long int[int]' for array subscript
    mi=f[i]-n[i];
               ^
0_0_30481438_14930.cpp:41:9: error: invalid types 'long long int[int]' for array subscript
      n[j]+=t;
         ^