/in/foo.cc: In function 'int main()':
/in/foo.cc:15:18: error: invalid operands of types 'int [105]' and 'int' to binary 'operator%'
    b[n]=b[n]*10+a%10;
                 ~^~~
/in/foo.cc:16:7: error: invalid operands of types 'int [105]' and 'int' to binary 'operator/'
    a/=10;
       ^~
/in/foo.cc:16:7: error:   in evaluation of 'operator/=(int [105], int)'
/in/foo.cc:12:7: warning: unused variable 'x' [-Wunused-variable]
   int x=i;
       ^