View Compilation Error

0_0_13955572_31033.cpp: In function 'int main()':
0_0_13955572_31033.cpp:3:13: error: expected primary-expression before '=' token
 #define maxn=1000000007
             ^
0_0_13955572_31033.cpp:18:21: note: in expansion of macro 'maxn'
    re=(re+i*(n-i+1)%maxn*x%maxn)%maxn;
                     ^
0_0_13955572_31033.cpp:3:13: error: expected primary-expression before '=' token
 #define maxn=1000000007
             ^
0_0_13955572_31033.cpp:18:28: note: in expansion of macro 'maxn'
    re=(re+i*(n-i+1)%maxn*x%maxn)%maxn;
                            ^
0_0_13955572_31033.cpp:3:13: error: expected primary-expression before '=' token
 #define maxn=1000000007
             ^
0_0_13955572_31033.cpp:18:34: note: in expansion of macro 'maxn'
    re=(re+i*(n-i+1)%maxn*x%maxn)%maxn;
                                  ^