View Compilation Error

0_0_26378749_7670.cpp:4:1: error: expected ',' or ';' before 'int'
 int A[maxn],B[maxn];
 ^
0_0_26378749_7670.cpp: In function 'int main()':
0_0_26378749_7670.cpp:15:9: error: 'A' was not declared in this scope
         A[0]=1,B[0]=1;
         ^
0_0_26378749_7670.cpp:15:16: error: 'B' was not declared in this scope
         A[0]=1,B[0]=1;
                ^