Submission #38847

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 n = fgetInt();
Integer[] d = new Integer[300100];
for ( int i = 0; i < n; i++ ) {
d[i] = fgetInt();
}
int temp = 10;
for ( int i = 0; i < n; i++ ) {
temp -= 10;
if ( temp < 0 ) {
System.out.println("no");
return;
}
temp = Math.max(temp, d[i]);
}
temp = 10;
for ( int i = n-1; i >= 0; i-- ) {
temp -= 10;
if ( temp < 0 ) {
System.out.println("no");
return;
}
temp = Math.max(temp, d[i]);
}
iprint("yes");
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 String getDoubleStr(double taishou, int ketasuu) {
return String.format("%.2f", taishou);
}
static BigInteger getBig(){
return in.nextBigInteger();
}
static String reverseStr(String str){
StringBuffer sb = new StringBuffer(str);
return sb.reverse().toString();
}
static int[] getIntArray(int length){
int[] array = new int[length];
int i;
for ( i = 0; i < length; i++ ) {
array[i] = fgetInt();
}
return array;
}
static int[][] getIntMap(int h, int w) {
int[][] map = new int[h][w];
int i;
for ( i = 0; i < h; i++ ) {
map[i] = getIntArray(w);
}
return map;
}
static void iprintIntArray(int[] object) {
int length = object.length;
int i;
iprintf(object[0]);
for ( i = 1; i < length; i++ ) iprintf(" " + object[i]);
iprint("");
}
static void iprintIntMap(int[][] object) {
int length = object.length;
int i;
for ( i = 0; i < length; i++ ) iprintIntArray(object[i]);
}
static long saishouKoubaiSuu(long m, long n) {
if(m < n) return saishouKoubaiSuu(n, m);
if(n == 0) return m;
return saishouKoubaiSuu(n, m % n);
}
static void iprint(Object a){
out.println(a);
}
static void iprintf(Object a){
out.print(a);
}
static void ifin(){
out.flush();
}
static long ruijou(int x, int n) {
long t;
if(n == 1) {
return x;
}
t = ruijou(x, n / 2);
if(n % 2 == 0) {
return t * t;
}else{
return t * t * x;
}
}
static long kaijou (int n) {
int a = 1;
int i;
for ( i = 2; i <= n; i++ ) {
a *= i;
}
return a;
}
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());}
}

ステータス

項目 データ
問題 0960 - トランポリン
ユーザー名 r1825
投稿日時 2018-07-14 20:24:36
言語 Java
状態 Accepted
得点 11
ソースコード長 7566 Byte
最大実行時間 128 ms
最大メモリ使用量 20884 KB

セット

セット 得点 Cases
1 ALL 11 / 11 *

テストケース

ファイル名 状態 実行時間 メモリ使用量 #
in1.txt AC 97 ms 13228 KB
1
in2.txt AC 94 ms 14784 KB
1
in3.txt AC 85 ms 14704 KB
1
in4.txt AC 99 ms 14676 KB
1
in5.txt AC 107 ms 14376 KB
1
in6.txt AC 100 ms 13284 KB
1
in7.txt AC 100 ms 15012 KB
1
in8.txt AC 101 ms 14844 KB
1
in9.txt AC 99 ms 14600 KB
1
in10.txt AC 108 ms 19692 KB
1
in11.txt AC 93 ms 13920 KB
1
in12.txt AC 95 ms 13300 KB
1
in13.txt AC 109 ms 13736 KB
1
in14.txt AC 95 ms 14640 KB
1
in15.txt AC 94 ms 14272 KB
1
in16.txt AC 93 ms 14336 KB
1
in17.txt AC 95 ms 14408 KB
1
in18.txt AC 93 ms 14784 KB
1
in19.txt AC 99 ms 13996 KB
1
in20.txt AC 93 ms 13440 KB
1
in21.txt AC 94 ms 13376 KB
1
in22.txt AC 95 ms 13916 KB
1
in23.txt AC 95 ms 13316 KB
1
in24.txt AC 95 ms 14396 KB
1
in25.txt AC 91 ms 14652 KB
1
in26.txt AC 101 ms 14668 KB
1
in27.txt AC 93 ms 13524 KB
1
in28.txt AC 96 ms 13692 KB
1
in29.txt AC 100 ms 14596 KB
1
in30.txt AC 101 ms 14332 KB
1
in31.txt AC 96 ms 14432 KB
1
in32.txt AC 128 ms 17348 KB
1
in33.txt AC 100 ms 18108 KB
1
in34.txt AC 104 ms 18456 KB
1
in35.txt AC 105 ms 20872 KB
1
in36.txt AC 110 ms 20884 KB
1
in37.txt AC 105 ms 13416 KB
1
in38.txt AC 107 ms 14616 KB
1
in39.txt AC 117 ms 14928 KB
1
in40.txt AC 111 ms 13428 KB
1