/in/foo.cc: In function 'int main()':
/in/foo.cc:43:17: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[5]' [-Wformat=]
    scanf("%s",&y);
                 ^
/in/foo.cc:20:8: warning: array subscript is above array bounds [-Warray-bounds]
  if(s[p]==0||s[p]>t) s[p]=t;
     ~~~^
/in/foo.cc:20:25: warning: array subscript is above array bounds [-Warray-bounds]
  if(s[p]==0||s[p]>t) s[p]=t;
                      ~~~^