.

Ssafy_test/src/BOJ/silver2/BOJ_11048.java

@@ -0,0 +1,51 @@
+package BOJ.silver2;
+
+import java.util.*;
+import java.io.*;
+
+public class BOJ_11048 {
+
+	public static void main(String[] args) throws IOException{
+		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+
+		StringTokenizer st = new StringTokenizer(br.readLine());
+
+		int n = Integer.parseInt(st.nextToken());
+		int m = Integer.parseInt(st.nextToken());
+
+		int[][] ll = new int[n][m];
+		int[][] dp = new int[n][m];
+
+		//초기값 저장
+		for(int i = 0; i<n; i++) {
+			st = new StringTokenizer(br.readLine());
+			for(int j = 0; j<m; j++) {
+				ll[i][j] = Integer.parseInt(st.nextToken());
+			}
+		}
+
+		//초기화
+		dp[0][0] = ll[0][0];
+
+		for(int i = 1; i<n; i++) {
+			dp[i][0] = dp[i-1][0] + ll[i][0];
+		}
+
+		for(int i = 1; i<m; i++) {
+			dp[0][i] = dp[0][i-1] + ll[0][i];
+		}
+
+		for(int i = 1; i<n; i++) {
+			for(int j = 1; j<m; j++) {
+				dp[i][j] = ll[i][j] + Math.max(Math.max(dp[i-1][j], dp[i][j-1]), dp[i-1][j-1]);
+			}
+		}
+
+		bw.write(dp[n-1][m-1] + "\n");
+		bw.flush();
+		br.close();
+		bw.close();
+
+	}
+}

Ssafy_test/src/BOJ/silver2/BOJ_1912.java

@@ -0,0 +1,38 @@
+package BOJ.silver2;
+
+import java.io.*;
+import java.util.*;
+
+public class BOJ_1912 {
+
+	public static void main(String[] args) throws IOException{
+		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+
+		int num = Integer.parseInt(br.readLine());
+		int[] dp = new int[num];
+		int[] ll = new int[num];
+		StringTokenizer st = new StringTokenizer(br.readLine());
+
+		for(int i = 0; i<num; i++) {
+			ll[i] = Integer.parseInt(st.nextToken());
+		}
+
+		dp[0] = ll[0]; //초기화
+
+		for(int i = 1; i<num;i++) {
+			dp[i] = ll[i] + Math.max(0, dp[i-1]);
+		}
+
+		int max = Integer.MIN_VALUE;
+
+		for(int i = 0; i<num; i++) {
+			max = Math.max(max, dp[i]); //dp[i] 수열에서 최소값 구하기
+		}
+
+		bw.write(max + "\n");
+		bw.flush();
+		bw.close();
+		br.close();
+	}
+}

Ssafy_test/src/BOJ/silver3/BOJ_11727.java

@@ -26,7 +26,7 @@ public static void main(String[] args) throws IOException{
 		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
 
 		int num = Integer.parseInt(br.readLine());
-		dp = new int[num+1];
+		dp = new int[num+2];
 
 		dp[1] = 1;
 		dp[2] = 3;