結果

問題 No.1199 お菓子配り-2
ユーザー AsahiAsahi
提出日時 2023-06-02 15:11:46
言語 Java21
(openjdk 21)
結果
AC  
実行時間 222 ms / 1,000 ms
コード長 5,840 bytes
コンパイル時間 3,426 ms
コンパイル使用メモリ 81,276 KB
実行使用メモリ 63,708 KB
最終ジャッジ日時 2023-08-28 02:22:06
合計ジャッジ時間 18,078 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge14
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 36 ms
33,212 KB
testcase_01 AC 34 ms
33,392 KB
testcase_02 AC 34 ms
33,364 KB
testcase_03 AC 133 ms
43,388 KB
testcase_04 AC 194 ms
53,356 KB
testcase_05 AC 56 ms
34,500 KB
testcase_06 AC 75 ms
35,328 KB
testcase_07 AC 132 ms
43,528 KB
testcase_08 AC 153 ms
46,520 KB
testcase_09 AC 125 ms
42,332 KB
testcase_10 AC 89 ms
36,620 KB
testcase_11 AC 117 ms
41,644 KB
testcase_12 AC 113 ms
38,876 KB
testcase_13 AC 90 ms
36,204 KB
testcase_14 AC 88 ms
36,504 KB
testcase_15 AC 86 ms
36,064 KB
testcase_16 AC 147 ms
46,404 KB
testcase_17 AC 124 ms
42,780 KB
testcase_18 AC 173 ms
51,616 KB
testcase_19 AC 108 ms
38,672 KB
testcase_20 AC 215 ms
55,004 KB
testcase_21 AC 174 ms
52,524 KB
testcase_22 AC 156 ms
47,736 KB
testcase_23 AC 176 ms
50,980 KB
testcase_24 AC 192 ms
52,600 KB
testcase_25 AC 94 ms
36,560 KB
testcase_26 AC 170 ms
52,084 KB
testcase_27 AC 154 ms
46,632 KB
testcase_28 AC 207 ms
63,536 KB
testcase_29 AC 209 ms
63,472 KB
testcase_30 AC 210 ms
63,496 KB
testcase_31 AC 210 ms
63,360 KB
testcase_32 AC 216 ms
63,400 KB
testcase_33 AC 209 ms
63,708 KB
testcase_34 AC 209 ms
63,380 KB
testcase_35 AC 206 ms
63,452 KB
testcase_36 AC 222 ms
63,368 KB
testcase_37 AC 207 ms
63,400 KB
testcase_38 AC 212 ms
63,564 KB
testcase_39 AC 210 ms
63,312 KB
testcase_40 AC 210 ms
63,492 KB
testcase_41 AC 207 ms
63,648 KB
testcase_42 AC 208 ms
63,452 KB
testcase_43 AC 209 ms
63,396 KB
testcase_44 AC 207 ms
63,512 KB
testcase_45 AC 207 ms
63,532 KB
testcase_46 AC 208 ms
63,428 KB
testcase_47 AC 208 ms
63,508 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

import java.util.*;
import java.io.*;

class Main{
    void solve(PrintWriter out, In in) {       
        int n = in.nextInt() , m = in.nextInt();
        long [][] dp = new long[n+1][n+1];
        long [][] A = in.LongArray(n, m);
        long [] S = new long[n];
        for(int i = 0 ; i < n ; i ++ ) {
            for(int j = 0 ; j < m ; j ++ ) {
                S[i] += A[i][j];
            }
        }
        for(int i = 0 ; i < n ; i ++ ) {
            for(int j = 0 ; j < n ; j ++ ) {
                dp[i+1][j] = Math.max(dp[i+1][j],dp[i][j]);
                if((j + 1) % 2 == 0) {
                    dp[i+1][j+1] = Math.max(dp[i+1][j+1],dp[i][j] - S[i]);
                }
                else{
                    dp[i+1][j+1] = Math.max(dp[i+1][j+1],dp[i][j] + S[i]);
                }  
            }
        }
        long ans = 0 ;
        for(int i = 0 ; i <= n ; i ++ ) {
            ans = Math.max(dp[n][i],ans);
        }
        out.print(ans);
    }   
    /* Library */   
    /* ------- */
    public static void main(String[] args) {
        PrintWriter out = new PrintWriter(System.out);
        In in  = new In();
        new Main().solve(out,in);
        out.flush();
    }
    final long MOD7 = 1000000007; final long MOD9 = 998244353 ;
    final int [] X4 = {0,1,0,-1}; final int [] Y4 = {-1,0,1,0};
    final int [] X8 = {-1,-1,0,1,1,1,0,-1}; final int [] Y8 = {0,1,1,1,0,-1,-1,-1};
    final int Inf = (int)1e9; final long Lnf = (long)1e18;
    final String yes = "Yes"; final String no = "No";
}
/* Class */

/* ----- */
class Pair{
    private int first ;
    private int second;
    Pair(int first,int second) {
        this.first = first;
        this.second = second;
    }
    int first()  { return this.first ; }
    int second() { return this.second; }
    @Override
    public String toString(){ return first()+" = "+second(); }
}
class PairII {
    private int first ;
    private int second ;
    private int third;
    PairII(int first, int second, int third) {
        this.first = first;
        this.second = second;
        this.third = third;
    }
    int first()  { return this.first ; }
    int second() { return this.second; }
    int third()  { return this.third ; }
    @Override
    public String toString(){ return first()+" = "+second()+" = "+third() ; }
}
class In{
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { 
        if (hasNextByte()) return buffer[ptr++]; else return -1;
    }
    private static boolean isPrintableChar(int c) { 
        return 33 <= c && c <= 126;
    }
    public boolean hasNext() { 
        while(hasNextByte() && !isPrintableChar(buffer[ptr])) {
            ptr++; 
        }
        return hasNextByte();
    }
    String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }

    long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    double nextDouble() { 
        return Double.parseDouble(next());
    }
    int [] IntArray(int n) {
        final int [] Array = new int [n];
        for(int i = 0 ; i < n ; i ++ ) {
            Array[i] = nextInt();
        }
        return Array;
    }
    int [][] IntArray(int n , int m) {
        final int [][] Array = new int [n][m];
        for(int i = 0 ; i < n ; i ++ ) {
            Array[i] = IntArray(m);
        }
        return Array;
    }   
    long [] LongArray(int n) {
        final long [] Array = new long [n];
        for(int i = 0 ; i < n ; i ++ ) {
            Array[i] = nextLong();
        }
        return Array;
    }
    long [][] LongArray(int n , int m) {
        final long [][] Array = new long [n][m];
        for(int i = 0 ; i < n ; i ++ ) {
            Array[i] = LongArray(m);
        }
        return Array;
    }
    String [] StringArray(int n) {
        final String [] Array = new String [n];
        for(int i = 0 ; i < n ; i ++ ) {
            Array[i] = next();
        }
        return Array;
    }
    char [] CharArray(int n) {
        final char [] Array = new char[n];
        for(int i = 0 ; i < n ; i ++ ) {
            Array[i] = next().charAt(0);
        }
        return Array;
    }
    char [][] CharArray(int n , int m) {
        final char [][] Array = new char [n][m];
        for(int i = 0 ; i < n ; i ++ ) {
            Array[i] = next().toCharArray();
        }
        return Array;
    }
}
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