/in/foo.cc: In function 'int main()':
/in/foo.cc:5:28: warning: format '%c' expects argument of type 'char*', but argument 2 has type 'int*' [-Wformat=]
     scanf("%c%c%c",&a,&b,&c);
                            ^
/in/foo.cc:5:28: warning: format '%c' expects argument of type 'char*', but argument 3 has type 'int*' [-Wformat=]
/in/foo.cc:5:28: warning: format '%c' expects argument of type 'char*', but argument 4 has type 'int*' [-Wformat=]