結果
| 問題 | No.1510 Simple Integral |
| ユーザー |
 遭難者
|
| 提出日時 | 2021-03-29 21:21:39 |
| 言語 | Java21 (openjdk 21) |
| 結果 |
WA
(最新)
AC
(最初)
|
| 実行時間 | - |
| コード長 | 11,802 bytes |
| コンパイル時間 | 3,215 ms |
| コンパイル使用メモリ | 86,468 KB |
| 実行使用メモリ | 52,156 KB |
| 最終ジャッジ日時 | 2024-09-14 22:57:19 |
| 合計ジャッジ時間 | 7,657 ms |
|
ジャッジサーバーID （参考情報） |
judge6 / judge3 |
（要ログイン）
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 | WA | - |
| testcase_01 | WA | - |
| testcase_02 | WA | - |
| testcase_03 | WA | - |
| testcase_04 | WA | - |
| testcase_05 | WA | - |
| testcase_06 | WA | - |
| testcase_07 | WA | - |
| testcase_08 | WA | - |
| testcase_09 | WA | - |
| testcase_10 | WA | - |
| testcase_11 | WA | - |
| testcase_12 | WA | - |
| testcase_13 | WA | - |
| testcase_14 | WA | - |
| testcase_15 | WA | - |
| testcase_16 | WA | - |
| testcase_17 | WA | - |
| testcase_18 | WA | - |
| testcase_19 | WA | - |
| testcase_20 | WA | - |
| testcase_21 | WA | - |
| testcase_22 | WA | - |
| testcase_23 | WA | - |
| testcase_24 | WA | - |
| testcase_25 | WA | - |
| testcase_26 | WA | - |
| testcase_27 | WA | - |
| testcase_28 | WA | - |
| testcase_29 | WA | - |
| testcase_30 | WA | - |
| testcase_31 | WA | - |
| testcase_32 | WA | - |
| testcase_33 | WA | - |
| testcase_34 | WA | - |
| testcase_35 | WA | - |
| testcase_36 | WA | - |
| testcase_37 | WA | - |
| testcase_38 | WA | - |
| testcase_39 | WA | - |
| testcase_40 | WA | - |
| testcase_41 | WA | - |
| testcase_42 | WA | - |
| testcase_43 | WA | - |
| testcase_44 | WA | - |
| testcase_45 | WA | - |
ソースコード
import java.util.*;
import java.io.*;
public class Main {
public static void main(String[] args) {
var sc = new ContestScanner();
var ou = new ContestPrinter();
int n = sc.nextInt();
var a = sc.nextLongArray(n);
if(!(1 <= n && n <= 1e3))
ou.println("WA");
for(int i = 1 ; i < n ; i++)
if(a[i - 1] >= a[i] || a[i] > 1e6)
ou.println("WA");
long s = 0;
for (int i = 0; i < n; i++) {
long t = a[i];
for (int j = 0; j < n; j++) {
if (i != j) {
t *= (a[j] * a[j] - a[i] * a[i]) % mod;
t %= mod;
}
}
if (t < 0)
t += mod;
t = inv(t);
s += t;
s %= mod;
}
s *= inv(2);
s %= mod;
ou.println(s);
ou.flush();
ou.close();
}
public static long mod = (int) 1e9 + 7;
static long inv(long a) {
return mp(a, mod - 2, mod);
}
static long mp(long a, long b, long m) {
if (b == 0)
return 1;
if ((b & 1) == 1)
return (a * mp(a, b - 1, m)) % m;
return mp((a * a) % m, b >> 1, m);
}
}
class ContestScanner {
private final InputStream in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
public ContestScanner(InputStream in) {
this.in = in;
}
public ContestScanner() {
this(System.in);
}
private boolean hasNextByte() {
if (ptr < buflen)
return true;
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0)
return false;
return true;
}
private int readByte() {
return hasNextByte() ? buffer[ptr++] : -1;
}
private static boolean isPrintableChar(int c) {
return 33 <= c && c <= 126;
}
public boolean hasNext() {
while (hasNextByte() && !isPrintableChar(buffer[ptr]))
ptr++;
return hasNextByte();
}
public 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 void nextThrow(int n) {
for (int i = 0; i < n; i++)
this.next();
}
public void nextThrow() {
this.nextThrow(1);
}
public 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 int nextInt() {
long nl = nextLong();
if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE)
throw new NumberFormatException();
return (int) nl;
}
public double nextDouble() {
return Double.parseDouble(next());
}
public long[] nextLongArray(int length) {
long[] array = new long[length];
for (int i = 0; i < length; i++)
array[i] = this.nextLong();
return array;
}
public long[] nextLongArray(int length, java.util.function.LongUnaryOperator map) {
long[] array = new long[length];
for (int i = 0; i < length; i++)
array[i] = map.applyAsLong(this.nextLong());
return array;
}
public int[] nextIntArray(int length) {
int[] array = new int[length];
for (int i = 0; i < length; i++)
array[i] = this.nextInt();
return array;
}
public int[] nextIntArray(int length, int[] array) {
int n = length + array.length;
int[] a = new int[n];
for (int i = 0; i < length; i++)
a[i] = this.nextInt();
for (int i = length; i < n; i++)
a[i] = array[i - length];
return a;
}
public Integer[] nextIntegerArray(int length, java.util.function.IntUnaryOperator map) {
Integer[] array = new Integer[length];
for (int i = 0; i < length; i++)
array[i] = map.applyAsInt(this.nextInt());
return array;
}
public Integer[] nextIntegerArray(int length) {
Integer[] array = new Integer[length];
for (int i = 0; i < length; i++)
array[i] = this.nextInt();
return array;
}
public int[] nextIntArray(int length, java.util.function.IntUnaryOperator map) {
int[] array = new int[length];
for (int i = 0; i < length; i++)
array[i] = map.applyAsInt(this.nextInt());
return array;
}
public double[] nextDoubleArray(int length) {
double[] array = new double[length];
for (int i = 0; i < length; i++)
array[i] = this.nextDouble();
return array;
}
public double[] nextDoubleArray(int length, java.util.function.DoubleUnaryOperator map) {
double[] array = new double[length];
for (int i = 0; i < length; i++)
array[i] = map.applyAsDouble(this.nextDouble());
return array;
}
public String[] nextArray(int length) {
String[] array = new String[length];
for (int i = 0; i < length; i++)
array[i] = this.next();
return array;
}
public long[][] nextLongMatrix(int height, int width) {
long[][] mat = new long[height][width];
for (int h = 0; h < height; h++)
for (int w = 0; w < width; w++)
mat[h][w] = this.nextLong();
return mat;
}
public int[][] nextIntMatrix(int height, int width) {
int[][] mat = new int[height][width];
for (int h = 0; h < height; h++)
for (int w = 0; w < width; w++)
mat[h][w] = this.nextInt();
return mat;
}
public double[][] nextDoubleMatrix(int height, int width) {
double[][] mat = new double[height][width];
for (int h = 0; h < height; h++)
for (int w = 0; w < width; w++)
mat[h][w] = this.nextDouble();
return mat;
}
public char[][] nextCharMatrix(int height, int width) {
char[][] mat = new char[height][width];
for (int h = 0; h < height; h++) {
String s = this.next();
for (int w = 0; w < width; w++)
mat[h][w] = s.charAt(w);
}
return mat;
}
public char[][] nextCharMatrix(int height, int width, int h, int w, char c) {
char[][] mat = new char[height + 2 * h][width + 2 * w];
for (int i = 0; i < height; i++) {
String s = this.next();
for (int j = 0; j < width; j++)
mat[i + h][j + w] = s.charAt(j);
}
for (int i = 0; i < h; i++)
for (int j = 0; j < 2 * w + width; j++)
mat[i][j] = c;
for (int i = h + height; i < 2 * h + height; i++)
for (int j = 0; j < 2 * w + width; j++)
mat[i][j] = c;
for (int i = h; i < h + height; i++) {
for (int j = 0; j < w; j++)
mat[i][j] = c;
for (int j = w + width; j < 2 * w + width; j++)
mat[i][j] = c;
}
return mat;
}
}
class ContestPrinter extends PrintWriter {
public ContestPrinter(PrintStream stream) {
super(stream);
}
public ContestPrinter() {
super(System.out);
}
private static String dtos(double x, int n) {
StringBuilder sb = new StringBuilder();
if (x < 0) {
sb.append('-');
x = -x;
}
x += Math.pow(10, -n) / 2;
sb.append((long) x);
sb.append(".");
x -= (long) x;
for (int i = 0; i < n; i++) {
x *= 10;
sb.append((int) x);
x -= (int) x;
}
return sb.toString();
}
@Override
public void print(float f) {
super.print(dtos(f, 20));
}
@Override
public void println(float f) {
super.println(dtos(f, 20));
}
@Override
public void print(double d) {
super.print(dtos(d, 20));
}
@Override
public void println(double d) {
super.println(dtos(d, 20));
}
public void printlnArray(String[] array) {
for (String i : array)
super.println(i);
}
public void printArray(int[] array, String separator) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(array[i]);
super.print(separator);
}
super.println(array[n]);
}
public void printArray(int[] array) {
this.printArray(array, " ");
}
public void printlnArray(int[] array) {
for (int i : array)
super.println(i);
}
public void printArray(int[] array, String separator, java.util.function.IntUnaryOperator map) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(map.applyAsInt(array[i]));
super.print(separator);
}
super.println(map.applyAsInt(array[n]));
}
public void printArray(int[] array, java.util.function.IntUnaryOperator map) {
this.printArray(array, " ", map);
}
public void printArray(long[] array, String separator) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(array[i]);
super.print(separator);
}
super.println(array[n]);
}
public void printArray(long[] array) {
this.printArray(array, " ");
}
public void printlnArray(long[] array) {
for (long i : array)
super.println(i);
}
public void printArray(boolean[] array, String a, String b) {
int n = array.length - 1;
for (int i = 0; i < n; i++)
super.print((array[i] ? a : b) + " ");
super.println(array[n] ? a : b);
}
public void printArray(boolean[] array) {
this.printArray(array, "Y", "N");
}
public void printArray(long[] array, String separator, java.util.function.LongUnaryOperator map) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(map.applyAsLong(array[i]));
super.print(separator);
}
super.println(map.applyAsLong(array[n]));
}
public void printArray(long[] array, java.util.function.LongUnaryOperator map) {
this.printArray(array, " ", map);
}
public void printArray(ArrayList<?> array) {
this.printArray(array, " ");
}
public void printArray(ArrayList<?> array, String separator) {
int n = array.size() - 1;
for (int i = 0; i < n; i++) {
super.print(array.get(i).toString());
super.print(separator);
}
super.println(array.get(n).toString());
}
public void printlnArray(ArrayList<?> array) {
int n = array.size();
for (int i = 0; i < n; i++)
super.println(array.get(i).toString());
}
}