/in/foo.cc: In function 'int main()':
/in/foo.cc:19:17: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'int*' [-Wformat=]
   scanf("%s", mp);
                 ^
/in/foo.cc:45:22: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
    if((sta[i]&a[n-1] == 0) && (sta[j]&a[n]) == 0 && (sta[i]&sta[j]) == 0)
               ~~~~~~~^~~~