import java.util.Scanner;

class BigNumber {
	private final int LENGTH = 200;
	private int[] integer = new int[LENGTH];
	private int[] decimal = new int[LENGTH];
	private int exp;

	public BigNumber(String input) {
		String[] s = input.split(" ");
		exp = Integer.parseInt(s[1]);
		String[] str = s[0].split("\\.");
		if (str.length == 2) {
			for (int i = 0; i < str[0].length(); i++) {
				integer[LENGTH - str[0].length() + i] = str[0].charAt(i) - '0';
			}
			for (int i = 0; i < str[1].length(); i++) {
				decimal[i] = str[1].charAt(i) - '0';
			}
		} else if (str.length == 1) {
			for (int i = 0; i < str[0].length(); i++) {
				integer[LENGTH - str[0].length() + i] = str[0].charAt(i) - '0';
			}
		} else if (str.length > 2) {
			System.out.println("Not a correct number");
		}
	}

	public BigNumber(int[] integer, int[] decimal) {
		this.integer = integer;
		this.decimal = decimal;
	}

	public int getIntegetBitAtIndex(int i) {
		return integer[i];
	}

	public int getDecimalBitAtIndex(int i) {
		return decimal[i];
	}

	public void pow() {
		int[] tempInteger = getInteger();
		int[] tempDecimal = getDecimal();

		if (this.exp == 0) {
			for (int i = 0; i < LENGTH; i++) {
				integer[i] = 0;
				decimal[i] = 0;
			}
			integer[(LENGTH - 1)] = 1;
		}
		for (int i = 0; i < this.exp - 1; i++) {
			int[] resultInteger = new int[LENGTH];
			int[] resultDecimal = new int[LENGTH];
			for (int j = 0; j < integer.length; j++) {
				if (integer[j] != 0) {
					for (int k = 0; k < tempInteger.length; k++) {
						if (tempInteger[k] != 0)
							resultInteger[j - (LENGTH - 1) + k] += integer[j]
									* tempInteger[k];
					}
					for (int m = 0; m < tempDecimal.length; m++) {
						if (tempDecimal[m] != 0)
							if (j + m - (LENGTH - 1) >= 0) {
								resultDecimal[j + m - (LENGTH - 1)] += integer[j]
										* tempDecimal[m];
							} else {
								resultInteger[j + m + 1] += integer[j]
										* tempDecimal[m];
							}
					}
				}
			}

			for (int j = 0; j < decimal.length; j++) {
				if (decimal[j] != 0) {
					for (int k = 0; k < tempInteger.length; k++) {
						if (tempInteger[k] != 0)
							if (j + k - (LENGTH - 1) >= 0) {
								resultDecimal[j + k - (LENGTH - 1)] += decimal[j]
										* tempInteger[k];
							} else {
								resultInteger[j + k + 1] += decimal[j]
										* tempInteger[k];
							}
					}
					for (int m = 0; m < tempDecimal.length; m++)
						if (tempDecimal[m] != 0)
							resultDecimal[m + j + 1] += decimal[j]
									* tempDecimal[m];
				}
			}

			for (int j = (LENGTH - 1); j >= 1; j--) {
				if (resultDecimal[j] != 0) {
					int temp = resultDecimal[j];
					resultDecimal[j] = resultDecimal[j] % 10;
					resultDecimal[j - 1] += previousBit(temp);
				}
			}
			if (resultDecimal[0] != 0) {
				int temp = resultDecimal[0];
				resultDecimal[0] = resultDecimal[0] % 10;
				resultInteger[(LENGTH - 1)] += temp / 10;
			}

			for (int j = (LENGTH - 1); j >= 0; j--) {
				if (resultInteger[j] != 0) {
					int temp = resultInteger[j];
					resultInteger[j] = temp % 10;
					resultInteger[j - 1] += temp / 10;
				}
			}
			integer = resultInteger;
			decimal = resultDecimal;

		}

	}

	public int[] getInteger() {
		return integer;
	}

	public int[] getDecimal() {
		return decimal;
	}

	private int previousBit(int bit) {
		if (bit < 10)
			return 0;
		else
			return bit / 10;
	}

	public void print() {
		boolean flag = false;
		for (int i = 0; i < LENGTH; i++) {
			if (integer[i] == 0 && !flag)
				continue;
			if (integer[i] != 0) {
				flag = true;
			}
			System.out.print(integer[i]);
		}

		boolean outputDot = false;
		int temp = -1;
		for (int j = (LENGTH - 1); j >= 0; j--) {
			if (decimal[j] != 0) {
				temp = j;
				outputDot = true;
				break;
			}
		}
		if (outputDot)
			System.out.print(".");

		for (int i = 0; i <= temp; i++)
			System.out.print(decimal[i]);

		if(!flag && temp==-1)
			System.out.print(0);
		
		System.out.println();
	}

	public int getExp() {
		return exp;
	}
}

public class Main {
	public static void main(String[] args) {
		 Scanner scanner = new Scanner(System.in);
		String str;
		while (scanner.hasNextLine()) {
			str  = scanner.nextLine();
			BigNumber bn = new BigNumber(str);
			bn.pow();
			bn.print();
		}
	}
}
我在网上搜到了一个测试数据的input.txt,然后和output.txt对比了的，一摸一样，但就是提交上去有runtime error.
希望大家帮我看看。

• Re:1001题，我已经测试了好多数据，在自己机器上都是对的，怎么提交上去都是Runtime Error？ (4890) shuaiwhu 2011-03-05 19:28:01
  • Re:1001题，我已经测试了好多数据，在自己机器上都是对的，怎么提交上去都是Runtime Error？ (38) shuaiwhu 2011-03-05 19:28:50