Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

Sign up
Appearance settings

Commit 398e922

Browse files
issue sowon-dev#42 피보나치 함수
1 parent 4728aa6 commit 398e922

File tree

1 file changed

+71
-0
lines changed

1 file changed

+71
-0
lines changed

‎src/backjoon/_1003.java

Lines changed: 71 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,71 @@
1+
package backjoon;
2+
// https://www.acmicpc.net/problem/1003
3+
// 피보나치 함수
4+
import java.io.BufferedReader;
5+
import java.io.IOException;
6+
import java.io.InputStreamReader;
7+
8+
public class _1003 {
9+
public static int cntZero = 0;
10+
public static int cntOne = 0;
11+
static int zero_plus_one;
12+
13+
public static void main(String[] args) throws IOException {
14+
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
15+
16+
int T = Integer.parseInt(br.readLine());
17+
StringBuilder sb = new StringBuilder();
18+
19+
for(int i=0; i<T; i++){
20+
int n = Integer.parseInt(br.readLine());
21+
fibonacci(n);
22+
sb.append(cntZero).append(' ').append(cntOne).append("\n");
23+
// cntZero = 0;
24+
// cntOne = 0;
25+
}
26+
System.out.println(sb);
27+
}
28+
29+
// sol1 시간초과
30+
/*
31+
static int fibonacci(int n){
32+
if(n == 0){
33+
cntZero++;
34+
return 0;
35+
} else if (n == 1){
36+
cntOne++;
37+
return 1;
38+
} else {
39+
return fibonacci(n-1) + fibonacci(n-2);
40+
}
41+
}
42+
*/
43+
44+
// so2 memory 11432 runtime 76
45+
// 규칙을 찾아서 풀기
46+
static void fibonacci(int N) {
47+
// 반드시 초기화 해야한다.
48+
cntZero = 1;
49+
cntOne = 0;
50+
zero_plus_one = 1;
51+
52+
for (int i = 0; i < N; i++) {
53+
cntZero = cntOne;
54+
cntOne = zero_plus_one;
55+
zero_plus_one = cntZero + cntOne;
56+
}
57+
58+
}
59+
}
60+
/*
61+
input
62+
3
63+
0
64+
1
65+
3
66+
67+
output
68+
1 0
69+
0 1
70+
1 2
71+
*/

0 commit comments

Comments
(0)

AltStyle によって変換されたページ (->オリジナル) /