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BAEKJOON 15723
53 lines (47 loc) · 1.44 KB
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BAEKJOON 15723
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import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class Main {
static StringTokenizer st;
static int N, M, start, end;
static int[][] map = new int[26][26];
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
N = Integer.parseInt(br.readLine());
for (int i = 0; i < 26; i++) {
for (int j = 0; j < 26; j++) {
if (i != j)
map[i][j] = 1000;
}
}
for (int i = 0; i < N; i++) {
st = new StringTokenizer(br.readLine());
start = st.nextToken().charAt(0) - 'a'; // 해당 데이터를 숫자로 변환
st.nextToken(); // is 부분 날려버림
end = st.nextToken().charAt(0) - 'a'; // 해당 데이터를 숫자로 변환
map[start][end] = 1;
}
for (int k = 0; k < 26; k++) { // 플로이드 와샬
for (int i = 0; i < 26; i++) {
if (i == k)
continue;
for (int j = 0; j < 26; j++) {
if (i == j || k == j)
continue;
map[i][j] = Math.min(map[i][j], map[i][k] + map[k][j]);
}
}
}
M = Integer.parseInt(br.readLine());
for (int i = 0; i < M; i++) {
st = new StringTokenizer(br.readLine());
start = st.nextToken().charAt(0) - 'a';
st.nextToken();
end = st.nextToken().charAt(0) - 'a';
if (map[start][end] != 0 && map[start][end] < 1000) // 연결되었다는 소리
System.out.println("T");
else
System.out.println("F");
}
}
}