結果
| 問題 | No.881 sin(x)/xの和 |
| ユーザー |
 Grenache
|
| 提出日時 | 2019-09-07 15:43:48 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 143 ms / 2,000 ms |
| コード長 | 5,247 bytes |
| コンパイル時間 | 4,103 ms |
| コンパイル使用メモリ | 78,316 KB |
| 実行使用メモリ | 42,340 KB |
| 最終ジャッジ日時 | 2024-11-21 08:02:17 |
| 合計ジャッジ時間 | 7,816 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 * 23 |
ソースコード
import java.io.*;import java.util.NoSuchElementException;public class Main_yukicoder881 {private static Scanner sc;private static Printer pr;private static void solve() {int n = sc.nextInt();double[] x = new double[n];double[] a = new double[n];double sum = 0;for (int i = 0; i < n; i++) {x[i] = sc.nextDouble();a[i] = sc.nextDouble();sum += a[i];}pr.println(Math.PI * sum);}// ---------------------------------------------------public static void main(String[] args) {sc = new Scanner(System.in);pr = new Printer(System.out);solve();pr.close();sc.close();}static class Scanner {BufferedReader br;Scanner(InputStream in) {br = new BufferedReader(new InputStreamReader(in));}private boolean isPrintable(int ch) {return ch >= '!' && ch <= '~';}private boolean isCRLF(int ch) {return ch == '\n' || ch == '\r' || ch == -1;}private int nextPrintable() {try {int ch;while (!isPrintable(ch = br.read())) {if (ch == -1) {throw new NoSuchElementException();}}return ch;} catch (IOException e) {throw new NoSuchElementException();}}String next() {try {int ch = nextPrintable();StringBuilder sb = new StringBuilder();do {sb.appendCodePoint(ch);} while (isPrintable(ch = br.read()));return sb.toString();} catch (IOException e) {throw new NoSuchElementException();}}int nextInt() {try {// parseInt from Integer.parseInt()boolean negative = false;int res = 0;int limit = -Integer.MAX_VALUE;int radix = 10;int fc = nextPrintable();if (fc < '0') {if (fc == '-') {negative = true;limit = Integer.MIN_VALUE;} else if (fc != '+') {throw new NumberFormatException();}fc = br.read();}int multmin = limit / radix;int ch = fc;do {int digit = ch - '0';if (digit < 0 || digit >= radix) {throw new NumberFormatException();}if (res < multmin) {throw new NumberFormatException();}res *= radix;if (res < limit + digit) {throw new NumberFormatException();}res -= digit;} while (isPrintable(ch = br.read()));return negative ? res : -res;} catch (IOException e) {throw new NoSuchElementException();}}long nextLong() {try {// parseLong from Long.parseLong()boolean negative = false;long res = 0;long limit = -Long.MAX_VALUE;int radix = 10;int fc = nextPrintable();if (fc < '0') {if (fc == '-') {negative = true;limit = Long.MIN_VALUE;} else if (fc != '+') {throw new NumberFormatException();}fc = br.read();}long multmin = limit / radix;int ch = fc;do {int digit = ch - '0';if (digit < 0 || digit >= radix) {throw new NumberFormatException();}if (res < multmin) {throw new NumberFormatException();}res *= radix;if (res < limit + digit) {throw new NumberFormatException();}res -= digit;} while (isPrintable(ch = br.read()));return negative ? res : -res;} catch (IOException e) {throw new NoSuchElementException();}}float nextFloat() {return Float.parseFloat(next());}double nextDouble() {return Double.parseDouble(next());}String nextLine() {try {int ch;while (isCRLF(ch = br.read())) {if (ch == -1) {throw new NoSuchElementException();}}StringBuilder sb = new StringBuilder();do {sb.appendCodePoint(ch);} while (!isCRLF(ch = br.read()));return sb.toString();} catch (IOException e) {throw new NoSuchElementException();}}int[] nextIntArray(int n) {int[] ret = new int[n];for (int i = 0; i < n; i++) {ret[i] = sc.nextInt();}return ret;}long[] nextLongArray(int n) {long[] ret = new long[n];for (int i = 0; i < n; i++) {ret[i] = sc.nextLong();}return ret;}int[][] nextIntArrays(int m, int n) {int[][] ret = new int[m][n];for (int i = 0; i < n; i++) {for (int j = 0; j < m; j++) {ret[j][i] = sc.nextInt();}}return ret;}void close() {try {br.close();} catch (IOException e) {// throw new NoSuchElementException();}}}static class Printer extends PrintWriter {Printer(OutputStream out) {super(out);}void printInts(int... a) {StringBuilder sb = new StringBuilder(32);for (int i = 0, size = a.length; i < size; i++) {if (i > 0) {sb.append(' ');}sb.append(a[i]);}println(sb);}void printLongs(long... a) {StringBuilder sb = new StringBuilder(64);for (int i = 0, size = a.length; i < size; i++) {if (i > 0) {sb.append(' ');}sb.append(a[i]);}println(sb);}void printStrings(String... a) {StringBuilder sb = new StringBuilder(32);for (int i = 0, size = a.length; i < size; i++) {if (i > 0) {sb.append(' ');}sb.append(a[i]);}println(sb);}}}