~/algor $ cat masalalar/string-harfni-almashtirish
String-12
Harfni almashtirish
Muallif:
Iqbolshoh Ilhomjonov
Oson
1000 ms
128 MB
26%
Kichik lotin harflaridan iborat $s$ satr hamda $a$ va $b$ harflari berilgan. Satrdagi barcha $a$ harflarini $b$ harfiga almashtiring.
Kiruvchi ma'lumotlar
Birinchi qatorda $s$ satri. Ikkinchi qatorda bo'sh joy bilan ajratilgan ikkita harf $a$ va $b$.
Chiquvchi ma'lumotlar
Bitta qatorda hosil bo'lgan satr.
Izoh
$1 \le |s| \le 10^{5}$
$s$ faqat kichik lotin harflaridan (a–z) iborat
$a$, $b$ — kichik lotin harflari ($a = b$ bo'lishi mumkin)
Misollar
Kirish #1
kitob o a
Chiqish #1
kitab
Kirish #2
abc x y
Chiqish #2
abc