Submission #37925

ソースコード

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import java.io.*;
import java.util.*;
import java.lang.*;
import java.math.*;
import java.text.*;
class Main{
static final Scanner in = new Scanner(System.in);
static final PrintWriter out = new PrintWriter(System.out);
public static void main(String args[]){
int[][] map = new int[1010][1010];
final int h = fgetInt();
final int w = fgetInt();
int i, j;
for ( i = 0; i < h; i++ ) {
for ( j = 0; j < w; j++ ) {
map[i][j] = fgetInt();
if ( i == 0 && j == 0 );
else if ( i == 0 ){
map[0][j] += map[0][j-1];
}
else if ( j == 0 ) {
map[i][0] += map[i-1][0];
}
else {
map[i][j] += Math.max(map[i-1][j], map[i][j-1]);
}
}
}
iprint(map[h-1][w-1]);
ifin();
}
static String fgetStr(){
return FastScanner.next();
}
static String fgetLine(){
return FastScanner.nextLine();
}
static char fgetChar(){
return fgetStr().charAt(0);
}
static int fgetInt(){
return FastScanner.nextInt();
}
static long fgetLong(){
return FastScanner.nextLong();
}
static double fgetDouble(){
return FastScanner.nextDouble();
}
static BigInteger getBig(){
return in.nextBigInteger();
}
static String reverseStr(String str){
StringBuffer sb = new StringBuffer(str);
return sb.reverse().toString();
}
static void iprint(Object a){
out.println(a);
}
static void iprintf(Object a){
out.print(a);
}
static void ifin(){
out.flush();
}
static int upperBound(int[] a, int n, int val){
int low = 0;
int hi = n;
while ( low < hi ) {
int mid = (low+hi) / 2;
if ( a[mid] <= val ) low = mid + 1;
else hi = mid;
}
return low;
}
static int lowerBound(int[] a, int n, int val){
int low = 0;
int hi = n;
while ( low < hi ) {
int mid = (low+hi) / 2;
if ( a[mid] < val ) low = mid + 1;
else hi = mid;
}
return low;
}
/*
static void hanoiNoTou(int n, String start, String temp, String target) {
if ( 0 < n ) {
hanoiNoTou(n - 1, start, target, temp);
iprint(n + " : " + start + " -> " + target);
hanoiNoTou(n - 1, temp, start, target);
}
}
*/
/*
@Deprecated
static String getStr(){
return in.next();
}
@Deprecated
static String getLine(){
return in.nextLine();
}
@Deprecated
static int getInt(){
return Integer.parseInt(getStr());
}
@Deprecated
static long getLong(){
return Long.parseLong(getStr());
}
@Deprecated
static double getDouble(){
return Double.parseDouble(getStr());
}
@Deprecated
static void print(Object a){
System.out.println(a);
}
@Deprecated
static void printf(Object a){
System.out.print(a);
}*/
}
class FastScanner {
private static final InputStream in = System.in;
private static final byte[] buffer = new byte[1024];
private static int ptr = 0;
private static int buflen = 0;
private static 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 static int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
public static boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
public static 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();
}
public static String nextLine() {
if (!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b) || b == 32) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public static 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();
}
}
public static int nextInt() {
long nl = nextLong();
if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
return (int) nl;
}
public static double nextDouble() { return Double.parseDouble(next());}
}
/*
class Bunsuu {
private static boolean doAutoYakubun = false;
private int bunshi;
private int bunbo;
public Bunsuu(int bunshi, int bunbo){
this.bunshi = bunshi;
this.bunbo = bunbo ;
}
public Bunsuu yakubun(Bunsuu b){
int targetBunbo = b.bunbo;
int targetBunshi = b.bunshi;
int i = 2;
int n = Math.max(targetBunshi, targetBunbo);
while ( i <= n ) {
while ( targetBunbo%i == 0 && targetBunshi%i == 0 ) {
targetBunbo /= i;
targetBunshi /= i;
}
i++;
n = Math.max(targetBunshi, targetBunbo);
}
return new Bunsuu(targetBunshi, targetBunbo);
}
public Bunsuu yakubun(int bunshi, int bunbo){
int targetBunbo = bunbo;
int targetBunshi = bunshi;
int i = 2;
int n = Math.max(targetBunshi, targetBunbo);
while ( i <= n ) {
while ( targetBunbo%i == 0 && targetBunshi%i == 0 ) {
targetBunbo /= i;
targetBunshi /= i;
}
i++;
n = Math.max(targetBunshi, targetBunbo);
}
if ( targetBunbo < 0 ) {
targetBunbo *= -1;
targetBunshi *= -1;
}
return new Bunsuu(targetBunshi, targetBunbo);
}
public Bunsuu tashizan(Object o) {
if ( o instanceof Bunsuu ) {
Bunsuu b = (Bunsuu)o;
return yakubun((b.bunshi * bunbo) + (bunshi * b.bunbo), b.bunbo * bunbo);
}
else if ( o instanceof Integer) {
int a = (int)o;
return yakubun(bunshi + a*bunbo, bunbo);
}
else {
throw new NumberFormatException();
}
}
public Bunsuu hikizan(Object o) {
if ( o instanceof Bunsuu ) {
Bunsuu b = (Bunsuu)o;
return this.tashizan(b.kakezan(-1));
}
else if ( o instanceof Integer) {
int a = (int)o;
return this.tashizan(a*-1);
}
else {
throw new NumberFormatException();
}
}
public Bunsuu kakezan(Object o) {
if ( o instanceof Bunsuu ) {
Bunsuu b = (Bunsuu)o;
return yakubun(b.bunshi * bunshi, b.bunbo * bunbo);
}
else if ( o instanceof Integer) {
int a = (int)o;
return yakubun(bunshi * a, bunbo);
}
else {
throw new NumberFormatException();
}
}
public Bunsuu warizan(Object o) {
if ( o instanceof Bunsuu ) {
Bunsuu b = (Bunsuu)o;
return this.kakezan(new Bunsuu(b.bunbo, b.bunshi));
}
else if ( o instanceof Integer) {
int a = (int)o;
return this.kakezan(new Bunsuu(1, a));
}
else {
throw new NumberFormatException();
}
}
public Bunsuu ruijou(int shisuu) {
if ( shisuu == 0 ) {
return new Bunsuu(1, 1);
}
if ( shisuu < 0 ) {
Bunsuu temp = new Bunsuu(bunbo, bunshi);
return temp.ruijou(-1*shisuu);
}
Bunsuu temp = this;
for ( int i = 1; i < shisuu; i++ ) {
temp = temp.kakezan(this);
}
return temp;
}
public String getBunsuu(){
if ( bunbo == 1 ) return bunshi + "";
return bunshi + "/" + bunbo;
}
public double getKinjichi(){
return (double)bunshi/bunbo;
}
}*/
/*
class UnionFind {
private int[] parent;
private int[] rank;
public UnionFind(int n) {
parent = new int[n];
rank = new int[n];
for (int i = 0; i < n; i++) {
parent[i] = i;
rank[i] = 0;
}
}
public void union(int x, int y) {
int rootX = find(x);
int rootY = find(y);
if (rank[rootX] > rank[rootY]) {
parent[rootY] = rootX;
} else if(rank[rootX] < rank[rootY]) {
parent[rootX] = rootY;
} else if (rootX != rootY){
parent[rootY] = rootX;
rank[rootX]++;
}
}
public int find(int i) {
if (i != parent[i]) {
parent[i] = find(parent[i]);
}
return parent[i];
}
public boolean isSame(int x, int y) {
return find(x) == find(y);
}
}
*/

ステータス

項目 データ
問題 0910 - 百円以下の拾得物
ユーザー名 r1825
投稿日時 2018-06-27 16:33:14
言語 Java
状態 Accepted
得点 3
ソースコード長 10615 Byte
最大実行時間 269 ms
最大メモリ使用量 39120 KB

セット

セット 得点 Cases
1 ALL 3 / 3 *

テストケース

ファイル名 状態 実行時間 メモリ使用量 #
in01.txt AC 112 ms 17324 KB
1
in02.txt AC 114 ms 17860 KB
1
in03.txt AC 101 ms 17680 KB
1
in04.txt AC 90 ms 18652 KB
1
in05.txt AC 123 ms 17752 KB
1
in06.txt AC 157 ms 21216 KB
1
in07.txt AC 173 ms 25740 KB
1
in08.txt AC 233 ms 29672 KB
1
in09.txt AC 269 ms 35464 KB
1
in10.txt AC 122 ms 35168 KB
1
in11.txt AC 136 ms 39120 KB
1
sample_in_1.txt AC 103 ms 39120 KB
1
sample_in_2.txt AC 91 ms 38116 KB
1