View Compilation Error

0_0_29033968_14567.cpp:4:1: error: 'l' does not name a type
 l a[100005];
 ^
0_0_29033968_14567.cpp: In function 'int main()':
0_0_29033968_14567.cpp:17:27: error: 'a' was not declared in this scope
             scanf("%lld",&a[i]);
                           ^
0_0_29033968_14567.cpp:24:28: error: 'a' was not declared in this scope
             res+=(ll)(maxx-a[i]);
                            ^