// MyPojProject.cpp : 定义控制台应用程序的入口点。
//

#include <stdio.h>
char s[7];//初始值
int n;//幂
int res[152];//计算结果
int tmpres[152];//计算用临时变量
int decimalCount = 0;//小数位数
int numCount = 0;//数字位数， 5或6

//计算一次乘积
void MultiLongNumbers()
{
	int reslen = 151;
	while (res[reslen]==0)
	{
		reslen --;
	}
	for (int i = 0; i< numCount; i++)
	{
		for (int j = 0; j<= reslen; j++)
		{
			tmpres[i+j] += s[i]*res[j];
		}
	}
	for (int i = 0; i<= numCount+reslen; i++)
	{
		if (tmpres[i] > 9)
		{
			tmpres[i+1] += tmpres[i]/10;
			tmpres[i] = tmpres[i]%10;
		}
		res[i] = tmpres[i];
		tmpres[i] = 0;
	}
};

int main()
{
	int tmp;
	while(scanf("%s%d", s, &n)==2)
	{
		tmp = 0;
		for (int i = 0; i<6; i++)
		{
			if (s[i] == '.')
			{
				decimalCount = 5 - i;
				tmp = 1;
			}
			s[i] = s[i+tmp];
		}
		numCount = 6 - tmp;
		//调整为低位下标为0
		for (int i = 0; i+i < numCount; i++)
		{
			tmp = s[i];
			s[i] = s[numCount - i - 1];
			s[numCount - i - 1] = tmp;
		}
		for (int i = 0; i< numCount; i++)
		{
			s[i] -= '0';
		}
		for (int i = 0; i< 152; i++)
		{
			res[i] = 0;
			tmpres[i] = 0;
		}
		res[0] = 1;
		for (int i = 0; i < n; i++)
		{
			MultiLongNumbers();
		}
		int resBeg = 151;
		int resEnd = 0;
		while (res[resBeg]==0)
		{
			resBeg --;
		}
		while (res[resEnd]==0)
		{
			resEnd ++;
		}
		decimalCount *= n;//结果中小数位数
		while (resBeg >= decimalCount)
		{
			printf("%d", res[resBeg]);
			resBeg -- ;
		}
		if (resBeg >= resEnd)
		{
			printf(".");
		}
		while (decimalCount-1 > resBeg)
		{
			printf("0");
			decimalCount -- ;
		}
		while (resBeg >= resEnd)
		{
			printf("%d", res[resBeg]);
			resBeg -- ;
		}
		printf("\n");
	}
	return 0;
}

• Re:为什么我的这个代码用GCC可以过，用C就说Compile Error呢？代码应该是没问题的，VS里面编译运行都没问题。 (31) cppforever 2014-04-16 14:54:23
• Re:为什么我的这个代码用GCC可以过，用C就说Compile Error呢？代码应该是没问题的，VS里面编译运行都没问题。 (2179) BillPOJ2016 2016-09-04 00:23:32