Submission #65420404

---

Source Code Expand

#include <iostream>
#define ll long long
#define R(a,b,c) for(ll a=b;a<=c;a++)
#define E(a,b,c) for(ll a=b;a>=c;a--)
using namespace std;
ll cnt[26];
int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	char x;
	while(cin>>x){
		cnt[x-'a']++;
	}
	R(i,0,25){
		if(!cnt[i]){
			cout<<(char)('a'+i)<<"\n";
			return 0;
		}
	}
	return 0;
}

Submission Info

Judge Result