king=input()
st=sorted(set(king),key=king.index)
for got in range(len(st)):
if st[got]!=chr(97+got):exit(print('NO'))
print('YES')
#include <iostream>
#include <string>
using namespace std;
int main() {
string s;
cin >> s;
int actual = 'a';
for (int i = 0; i < s.length(); i++) {
char letra = s[i];
if (letra > actual){
cout << "NO" << endl;
return 0;
} else if (letra == actual) {
actual++;
}
}
cout << "YES" << endl;
return 0;
}
Missing numbers | Maximum sum |
13 Reasons Why | Friend's Relationship |
Health of a person | Divisibility |
A. Movement | Numbers in a matrix |
Sequences | Split houses |
Divisible | Three primes |
Coprimes | Cost of balloons |
One String No Trouble | Help Jarvis! |
Lift queries | Goki and his breakup |
Ali and Helping innocent people | Book of Potion making |
Duration | Birthday Party |
e-maze-in | Bricks Game |
Char Sum | Two Strings |
Anagrams | Prime Number |
Lexical Sorting Reloaded | 1514A - Perfectly Imperfect Array |