Cod sursa(job #121430)
| Utilizator |  stancu vlad valytgjiu91 |
Data | 8 ianuarie 2008 18:36:10 |
|---|---|---|---|
| Problema | Litere | Scor | 100 |
| Compilator | fpc | Status | done |
| Runda | Arhiva de probleme | Marime | 0.35 kb |
var ap:array['a'..'z'] of integer;
n,i:integer;
c,ch:char;
f,g:text;
k:longint;
begin
assign(f,'litere.in');
reset(f);
readln(f,n);
for i:=1 to n do
begin
read(f,c);
ap[c]:=ap[c]+1;
for ch:=succ(c) to 'z' do
if Ap[ch]>0 then k:=k+Ap[ch];
end;
close(f);
assign(g,'litere.out');
rewrite(g);
writeln(g,k);
close(g);
end.