oj.uz

답안 #716200

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
716200 2023-03-29T08:35:16 Z gghx JJOOII 2 (JOI20_ho_t2) C++14
100 / 100
 14 ms 5404 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	ll n,k;
	cin>>n>>k;
	char arr[n];
	for(int i=0;i<n;i++) cin>>arr[i];
	ll j[n], o[n], ik[n];
	fill(j,j+n,0);
	fill(o,o+n,0);
	fill(ik,ik+n,0);
	ll pointerj=-1;
	ll countj=0;
	while(countj<k && pointerj<n){
		pointerj++;
		if(pointerj==n){
			cout<<-1;
			return 0;
		}
		if(arr[pointerj]=='J') countj++;
	}
	j[0]=pointerj;
	for(int i=1;i<n;i++){
		if(arr[i-1]!='J') j[i]=j[i-1]; 
		else{
			while(pointerj<n){
				pointerj++;
				if(pointerj==n) j[i]=-1;
				if(arr[pointerj]=='J') break;
			}
			if(pointerj!=n) j[i]=pointerj;
			else j[i]=-1;
		}
	}
	ll pointero=-1;
	ll counto=0;
	while(counto<k && pointero<n){
		pointero++;
		if(pointero==n){
			cout<<-1;
			return 0;
		}
		if(arr[pointero]=='O') counto++;
	}
	o[0]=pointero;
	for(int i=1;i<n;i++){
		if(arr[i-1]!='O') o[i]=o[i-1]; 
		else{
			while(pointero<n){
				pointero++;
				if(pointero==n) o[i]=-1;
				if(arr[pointero]=='O') break;
			}
			if(pointero!=n) o[i]=pointero;
			else o[i]=-1;
		}
	}
	ll pointeri=-1;
	ll counti=0;
	while(counti<k && pointeri<n){
		pointeri++;
		if(pointeri==n){
			cout<<-1;
			return 0;
		}
		if(arr[pointeri]=='I') counti++;
	}
	ik[0]=pointeri;
	for(int i=1;i<n;i++){
		if(arr[i-1]!='I') ik[i]=ik[i-1]; 
		else{
			while(pointeri<n){
				pointeri++;
				if(pointeri==n) ik[i]=-1;
				if(arr[pointeri]=='I') break;
			}
			if(pointeri!=n) ik[i]=pointeri;
			else ik[i]=-1;
		}
	}
	ll ans=1e18;
	if(j[0]==-1){
		cout<<-1;
		return 0;
	}
	if(o[j[0]]==-1){
		cout<<-1;
		return 0;
	}
	if(ik[o[j[0]]]==-1){
		cout<<-1;
		return 0;
	}
	for(int i=0;i<n;i++){
		if(arr[i]!='J') continue;
		ll t=j[i];
		if(t==-1) continue;
		ll r=o[t];
		if(r==-1) continue;
		ll x=ik[r];
		if(x==-1) continue;
		ans=min(ans,x-i+1-3*k);
	}
	cout<<ans;
}

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct

Subtask #3
87.0 / 87.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 8 ms 4940 KB Output is correct
37 Correct 9 ms 5332 KB Output is correct
38 Correct 9 ms 5332 KB Output is correct
39 Correct 14 ms 5312 KB Output is correct
40 Correct 10 ms 5332 KB Output is correct
41 Correct 11 ms 5332 KB Output is correct
42 Correct 11 ms 5312 KB Output is correct
43 Correct 7 ms 3412 KB Output is correct
44 Correct 8 ms 4180 KB Output is correct
45 Correct 10 ms 5404 KB Output is correct
46 Correct 11 ms 5332 KB Output is correct
47 Correct 10 ms 5364 KB Output is correct
48 Correct 10 ms 5332 KB Output is correct
49 Correct 7 ms 3652 KB Output is correct
50 Correct 9 ms 5332 KB Output is correct
51 Correct 9 ms 5332 KB Output is correct
52 Correct 9 ms 5204 KB Output is correct
53 Correct 8 ms 5332 KB Output is correct
54 Correct 7 ms 5320 KB Output is correct
55 Correct 7 ms 5324 KB Output is correct
56 Correct 7 ms 5400 KB Output is correct