week18 (2)

Author: kimjeonghyun3292

src/jeonghyun/week18/bj_5717.java

@@ -0,0 +1,26 @@
+package jeonghyun.week18;
+
+import java.util.Scanner;
+
+public class bj_5717 {
+
+	// 백준 5717 - 상근이의 친구들
+	public static void main(String[] args) {
+		
+		Scanner sc = new Scanner(System.in);
+		
+		while(true) {
+			int a = sc.nextInt();
+			int b = sc.nextInt();
+			
+			if(a == 0 && b == 0)
+				break;
+			
+			System.out.println(a + b);
+		}
+		
+		sc.close();
+
+	}
+
+}

src/jeonghyun/week18/bj_5988.java

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+package jeonghyun.week18;
+
+import java.util.Scanner;
+
+public class bj_5988 {
+
+	// 백준 5988 - 홀수일까 짝수일까
+	public static void main(String[] args) {
+		
+		Scanner sc = new Scanner(System.in);
+		
+		int T = sc.nextInt();
+		
+		while(T!= 0) {
+			String[] str = sc.next().split("");
+			
+			int num = Integer.parseInt(str[str.length - 1]);
+			
+			if(num % 2 == 0) {
+				System.out.println("even");
+			} else {
+				System.out.println("odd");
+			}
+			
+			T--;
+		}
+
+
+		
+
+	}
+
+}

src/jeonghyun/week18/bj_9095.java

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+package jeonghyun.week18;
+
+import java.util.Scanner;
+
+public class bj_9095 {
+
+	// 백준 9095 - 1,2,3 더하기
+	
+	static int dp[] = new int[11];
+	
+	public static void main(String[] args) {
+		
+		Scanner sc = new Scanner(System.in);
+		
+		int t = sc.nextInt();
+		
+		dp[1] = 1; // 초기화
+		dp[2] = 2;
+		dp[3] = 4;
+		
+		for(int j=4;j<=10;j++) {  // 4부터 반복
+			dp[j] = dp[j-3] + dp[j-2] + dp[j-1]; // 점화식
+		}
+		
+		for(int i=0;i<t;i++) {
+			int n = sc.nextInt();
+			
+			System.out.println(dp[n]);
+		}
+
+	}
+
+}