結果
| 問題 |
No.220 世界のなんとか2
|
| コンテスト | |
| ユーザー |
fujisu
|
| 提出日時 | 2015-05-30 03:44:17 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 48 ms / 1,000 ms |
| コード長 | 2,936 bytes |
| コンパイル時間 | 2,268 ms |
| コンパイル使用メモリ | 78,508 KB |
| 実行使用メモリ | 50,432 KB |
| 最終ジャッジ日時 | 2024-07-06 12:32:42 |
| 合計ジャッジ時間 | 3,325 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 19 |
ソースコード
import java.io.IOException;
import java.util.InputMismatchException;
public class Main {
void run() {
MyScanner sc = new MyScanner();
int n = sc.nextInt();
/*
int s = 1;
for (int i = 0; i < n; i++) {
s *= 10;
}
int count = 0;
for (int i = 1; i < s; i++) {
if (i % 3 == 0) {
count++;
continue;
}
int k = i;
boolean f = false;
while (!f && 0 < k) {
if (k % 10 == 3) {
f = true;
}
k /= 10;
}
if (f) {
count++;
}
}
System.out.println(count);
if (n == 19) {
System.out.println(9099432188218005273L);
return;
}
*/
long[] u = new long[20];
long[] t = new long[20];
long tmp1 = 9;
long tmp2 = 8;
for (int i = 1; i < n + 1; i++) {
u[i] = tmp1;
tmp1 *= 10;
t[i] = tmp2;
tmp2 *= 9;
}
for (int i = 1; i < n + 1; i++) {
t[i] = t[i] * 2 / 3;
}
for (int i = 1; i < n + 1; i++) {
u[i] += u[i - 1];
t[i] += t[i - 1];
}
System.out.println(u[n] - t[n] - 1);
}
public static void main(String[] args) {
new Main().run();
}
public void mapDebug(int[][] a) {
System.out.println("--------map display---------");
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[i].length; j++) {
System.out.printf("%3d ", a[i][j]);
}
System.out.println();
}
System.out.println("----------------------------" + '\n');
}
class MyScanner {
int read() {
try {
return System.in.read();
} catch (IOException e) {
throw new InputMismatchException();
}
}
boolean isSpaceChar(int c) {
return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
}
boolean isEndline(int c) {
return c == '\n' || c == '\r' || c == -1;
}
int nextInt() {
return Integer.parseInt(next());
}
int[] nextIntArray(int n) {
int[] array = new int[n];
for (int i = 0; i < n; i++)
array[i] = nextInt();
return array;
}
long nextLong() {
return Long.parseLong(next());
}
long[] nextLongArray(int n) {
long[] array = new long[n];
for (int i = 0; i < n; i++)
array[i] = nextLong();
return array;
}
double nextDouble() {
return Double.parseDouble(next());
}
double[] nextDoubleArray(int n) {
double[] array = new double[n];
for (int i = 0; i < n; i++)
array[i] = nextDouble();
return array;
}
String next() {
int c = read();
while (isSpaceChar(c))
c = read();
StringBuilder res = new StringBuilder();
do {
res.appendCodePoint(c);
c = read();
} while (!isSpaceChar(c));
return res.toString();
}
String[] nextStringArray(int n) {
String[] array = new String[n];
for (int i = 0; i < n; i++)
array[i] = next();
return array;
}
String nextLine() {
int c = read();
while (isEndline(c))
c = read();
StringBuilder res = new StringBuilder();
do {
res.appendCodePoint(c);
c = read();
} while (!isEndline(c));
return res.toString();
}
}
}
fujisu