제출 #476356

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
476356		starplat	Nivelle (COCI20_nivelle)	C++14	0 / 110	4 ms	460 KiB

nivelle

#include <bits/stdc++.h>
using namespace std;
string s;
int l,r,n,j,ct,ac[150],ok;
double best;
int main()
{
	cin>>n>>s;
	s='#'+s;
	ok=1;
	for (int i=1;i<=n;i++){
		while (j<n){
			j++;
			if (ac[s[j]-'a']==0) ct++;
			ac[s[j]-'a']++;
			if (l==0){
				best=ct/(double)(j-i+1);
				l=i,r=j;
			}
			else if (best>=ct/(double)(j-i+1)){
				best=ct/(double)(j-i+1);
				l=i,r=j;
			}
			else {
				ac[s[j]-'a']--;
				if (ac[s[j]-'a']==0) --ct;
				--j;
				break;
			}
		}
		while (best+1e-9>=ct/(double)(j-i+1)&&i<=j) {
			best=ct/(double)(j-i+1);
			l=i,r=j;
			ac[s[i]-'a']--;
			if (ac[s[i]-'a']==0) ct--;
			i++;
		}
	}
	cout<<l<<" "<<r<<"\n";
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 17
• Subtask 3: 0 / 13
• Subtask 4: 0 / 25
• Subtask 5: 0 / 48