結果
| 問題 |
No.1199 お菓子配り-2
|
| コンテスト | |
| ユーザー |
shojin_pro
|
| 提出日時 | 2020-08-28 22:08:56 |
| 言語 | Java (openjdk 23) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 3,294 bytes |
| コンパイル時間 | 2,819 ms |
| コンパイル使用メモリ | 79,296 KB |
| 実行使用メモリ | 62,112 KB |
| 最終ジャッジ日時 | 2024-11-14 03:33:01 |
| 合計ジャッジ時間 | 9,982 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | RE * 45 |
ソースコード
import java.util.*;
import java.io.*;
public class Main {
public static void main(String[] args) throws Exception {
FastScanner sc = new FastScanner(System.in);
PrintWriter pw = new PrintWriter(System.out);
int n = sc.nextInt();
int m = sc.nextInt();
long[][] dp = new long[n+1][n+1];
for(int i = 0; i < n; i++){
Arrays.fill(dp[i],-Long.MAX_VALUE/2);
}
dp[0][0] = 0;
for(int i = 0; i < n; i++){
int total = 0;
for(int j = 0; j < m; j++){
total += sc.nextInt();
}
for(int j = 0; j <= i; j++){
dp[i+1][j] = Math.max(dp[i+1][j],dp[i][j]);
if(j % 2 == 0){
dp[i+1][j+1] = Math.max(dp[i+1][j+1],dp[i][j] + total);
}else{
dp[i+1][j+1] = Math.max(dp[i+1][j+1],dp[i][j] - total);
}
}
}
long ans = 0;
for(int i = 0; i <= n; i++){
ans = Math.max(ans,dp[n][i]);
}
pw.println(ans);
pw.flush();
}
static class GeekInteger {
public static void save_sort(int[] array) {
shuffle(array);
Arrays.sort(array);
}
public static int[] shuffle(int[] array) {
int n = array.length;
Random random = new Random();
for (int i = 0, j; i < n; i++) {
j = i + random.nextInt(n - i);
int randomElement = array[j];
array[j] = array[i];
array[i] = randomElement;
}
return array;
}
}
}
class FastScanner {
private BufferedReader reader = null;
private StringTokenizer tokenizer = null;
public FastScanner(InputStream in) {
reader = new BufferedReader(new InputStreamReader(in));
tokenizer = null;
}
public String next() {
if (tokenizer == null || !tokenizer.hasMoreTokens()) {
try {
tokenizer = new StringTokenizer(reader.readLine());
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return tokenizer.nextToken();
}
public String nextLine() {
if (tokenizer == null || !tokenizer.hasMoreTokens()) {
try {
return reader.readLine();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return tokenizer.nextToken("\n");
}
public long nextLong() {
return Long.parseLong(next());
}
public int nextInt() {
return Integer.parseInt(next());
}
public double nextDouble() {
return Double.parseDouble(next());
}
public String[] nextArray(int n) {
String[] a = new String[n];
for (int i = 0; i < n; i++)
a[i] = next();
return a;
}
public int[] nextIntArray(int n) {
int[] a = new int[n];
for (int i = 0; i < n; i++)
a[i] = nextInt();
return a;
}
public long[] nextLongArray(int n) {
long[] a = new long[n];
for (int i = 0; i < n; i++)
a[i] = nextLong();
return a;
}
}
shojin_pro