[20250210] BOJ / 플래5 / Class Schedule / 권혁준

Author: oncsr

khj20006/202502/10 BOJ P5 Class Schedule.md

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+```java
+
+import java.util.*;
+import java.io.*;
+
+class Main {
+	
+	// IO field
+	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+	static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+	static StringTokenizer st;
+
+	static void nextLine() throws Exception {st = new StringTokenizer(br.readLine());}
+	static int nextInt() {return Integer.parseInt(st.nextToken());}
+	static long nextLong() {return Long.parseLong(st.nextToken());}
+	static void bwEnd() throws Exception {bw.flush();bw.close();}
+	
+	// Additional field
+	static int[] dp;
+	static int[][] E, P;
+	static int C, T, L;
+	
+	public static void main(String[] args) throws Exception {
+		
+		ready();
+		//solve();
+	
+		bwEnd();
+	}
+	
+	static void ready() throws Exception{
+
+		int Z = Integer.parseInt(br.readLine());
+		while(Z-- > 0) {
+			nextLine();
+			C = nextInt();
+			T = nextInt();
+			L = nextInt();
+			dp = new int[T];
+			E = new int[C][T];
+			P = new int[C][T];
+			for(int i=0;i<C;i++) {
+				for(int j=0;j<T;j++) {
+					nextLine();
+					P[i][j] = nextInt();
+					E[i][j] = nextInt();
+				}
+			}
+			
+			solve();
+		}
+		
+	}
+	
+	static void solve() throws Exception{
+
+		for(int j=0;j<T;j++) dp[j] = P[0][j] + E[0][j];
+		
+		for(int i=1;i<C;i++) {
+			int[] ndp = new int[T];
+			Arrays.fill(ndp, Integer.MAX_VALUE);
+			for(int j=0;j<T;j++) {
+				for(int k=0;k<T;k++) {
+					ndp[j] = Math.min(ndp[j], dp[k] + E[i][j] + Math.abs(P[i][j] - P[i-1][k]));
+				}
+			}
+			dp = ndp;
+		}
+		
+		int ans = Integer.MAX_VALUE;
+		for(int j=0;j<T;j++) ans = Math.min(ans, dp[j] + Math.abs(L-P[C-1][j]));
+		bw.write(ans+"\n");
+		
+	}
+	
+}
+
+```