Main.cc: In function 'int main()':
Main.cc:13:9: error: conflicting declaration 'int a'
int a,a1,a2;
^
Main.cc:7:11: note: previous declaration as 'int a [1000]'
int n,a[1000];
^
Main.cc:14:7: error: incompatible types in assignment of 'int' to 'int [1000]'
a = abs (a[1] - a[2]);
^
Main.cc:21:11: error: incompatible types in assignment of 'int' to 'int [1000]'
a = abs (a[i] - a[j]);
^
Main.cc: At global scope:
Main.cc:26:11: error: 'cout' does not name a type
} cout<