View Compilation Error

0_0_37693819_24185.cpp: In function 'int main()':
0_0_37693819_24185.cpp:19:10: error: incompatible types in assignment of 'int' to 'int [30]'
    aa[x] = 1,bb[y] = 1;
          ^
0_0_37693819_24185.cpp:19:20: error: incompatible types in assignment of 'int' to 'int [30]'
    aa[x] = 1,bb[y] = 1;
                    ^
0_0_37693819_24185.cpp:27:7: error: 'flag' was not declared in this scope
    if(flag == 1) printf("No\n");
       ^