제출 #441580

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
441580		rainboy	Type Printer (IOI08_printer)	C11	100 / 100	141 ms	49220 KiB

printer

#include <stdio.h>
#include <string.h>

#define N	25000
#define L	20
#define N_	(2 + N * L)
#define A	26

int max(int a, int b) { return a > b ? a : b; }

int tt[N_][A], dd[N_]; char word[N_];

void dfs1(int i) {
	int a;

	for (a = 0; a < A; a++) {
		int j = tt[i][a];

		if (j) {
			dfs1(j);
			dd[i] = max(dd[i], dd[j] + 1);
		}
	}
}

void dfs2(int i, int final) {
	int a, a_;

	if (word[i])
		printf("P\n");
	a_ = -1;
	for (a = 0; a < A; a++) {
		int j = tt[i][a];

		if (j && dd[i] == dd[j] + 1) {
			a_ = a;
			break;
		}
	}
	for (a = 0; a < A; a++) {
		int j = tt[i][a];

		if (j && a != a_)
			printf("%c\n", a + 'a'), dfs2(j, 0);
	}
	if (a_ != -1)
		printf("%c\n", a_ + 'a'), dfs2(tt[i][a_], final);
	if (!final)
		printf("-\n");
}

int main() {
	int n, n_, i;

	scanf("%d", &n);
	n_ = 2;
	for (i = 0; i < n; i++) {
		static char cc[L + 1];
		int l, h, t;

		scanf("%s", cc), l = strlen(cc);
		for (h = 0, t = 1; h < l; h++) {
			int a = cc[h] - 'a';

			if (!tt[t][a])
				tt[t][a] = n_++;
			t = tt[t][a];
		}
		word[t] = 1;
	}
	dfs1(1);
	printf("%d\n", n + (n_ - 2) * 2 - dd[1]);
	dfs2(1, 1);
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

printer.c: In function 'main':
printer.c:55:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   55 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
printer.c:61:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   61 |   scanf("%s", cc), l = strlen(cc);
      |   ^~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10