/in/foo.cc: In function 'int main()':
/in/foo.cc:57:23: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[15]' [-Wformat=]
    scanf("%s",&a[i][j]);
                       ^
/in/foo.cc:99:34: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
    printf("%d ",ans.num[id[i][j]]);
                                  ^