oj.uz

답안 #18849

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
18849 2016-02-16T02:14:45 Z suhgyuho_william 크레이피쉬 글쓰는 기계 (IOI12_scrivener) C++
5 / 100
 299 ms 91896 KB 
int rear,cnt;
int par[1000010][22];
int next[1000010];
char a[1000010];

void Init(){
	rear = cnt = 0;
}

void TypeLetter(char L) {
	int i;

	rear++; cnt++;
	next[cnt] = rear;
	a[rear] = L;
	par[rear][0] = next[rear-1];
	for(i=1; i<=19; i++){
		par[rear][i] = par[par[rear][i-1]][i-1];
	}
}

void UndoCommands(int U) {
	cnt++;
	next[cnt] = next[cnt-U];
}

char GetLetter(int P) {
	int i,x;
	int ans;

	ans = rear;
	x = next[cnt]-(P+1);
	for(i=19; i>=0; i--){
		if(x == 0) break;
		if(x >= (1 << i)){
			x -= (1 << i);
			ans -= (1 << i);
		}
	}
	return a[ans];
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 91896 KB Output is correct
2 Correct 0 ms 91896 KB Output is correct
3 Correct 0 ms 91896 KB Output is correct
4 Correct 0 ms 91896 KB Output is correct
5 Correct 0 ms 91896 KB Output is correct
6 Correct 0 ms 91896 KB Output is correct
7 Correct 0 ms 91896 KB Output is correct
8 Correct 0 ms 91896 KB Output is correct
9 Correct 0 ms 91896 KB Output is correct
10 Correct 0 ms 91896 KB Output is correct

Subtask #2
0.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 91896 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 91896 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 269 ms 91896 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 299 ms 91896 KB Output isn't correct
2 Halted 0 ms 0 KB -