> #include <stdio.h>
> //#include <stdlib.h>
> #include <string.h>
> 
> void add(char a[], char b[], int len1, int len2){
> 	int index;
> 	for(index = len1; index >= len2; index--){
> 		if (a[index]+b[index]-'0'-'0' >= 10){
> 			a[index] = a[index]+b[index]-'0'-10;
> 			a[index-1] += 1;
> 		}
> 		else a[index] = a[index]+b[index]-'0';
> 	}
> }
> 
> int main(){
> 	freopen("input.txt","r",stdin);
> 	freopen("output.txt","w",stdout);
> 
> 	char result_temp1[131], result_temp2[131], result[131];
> 	char base[7];
> 	char r[7];
> 	int i, j, k, n, real_num, decimal_num, temp, mul_temp; //num = the number of
> 
> 	memset(r,'\0',sizeof(r));
> 
> 	while(scanf("%s%d",r,&n) != EOF){
> 		memset(result, '0', sizeof(result));
> 		memset(base,'\0',sizeof(base));
> 		//input
> 		real_num = 0;
> 		decimal_num = 0;
> 		for(i = 0; i < strlen(r); i++)
> 			if (r[i] == '.') break;
> 		for(j = 0; j < i; j++)
> 			if (r[j] == '0') continue;
> 			else break;
> 		for(k = j; k < i; k++)
> 			base[real_num++] = r[k];
> 		for(j = strlen(r)-1; j > i; j--)
> 			if (r[j] == '0') continue;
> 			else break;
> 		for(k = i+1; k <= j; k++){
> 			base[real_num++] = r[k];
> 			decimal_num++;
> 		}
> 		for(i = 0; i < strlen(base); i++)
> 			if (base[i] == '0') continue;
> 			else break;
> 		if (i){
> 			real_num = 0;
> 			for(j = i; j < strlen(base); j++)
> 				base[real_num++] = base[j];
> 			for(k = real_num; k < strlen(base); k++)
> 				base[k] = '\0';
> 		}
> 		memcpy(&result[130-real_num], base, real_num);
>         //process
> 		for(k = 0; k < n-1; k++){
> 			memset(result_temp2, '0', sizeof(result_temp2));
> 			for(i = strlen(base)-1; i >= 0; i--){
> 				memset(result_temp1, '0', sizeof(result_temp1));
> 				mul_temp = 0;
> 				for(j = 0; j < real_num; j++){
> 					temp = (base[i]-'0')*(result[130-1-j]-'0');
> 					temp += mul_temp;
> 					result_temp1[130-1-j-(strlen(base)-1-i)] += temp%10;
> 					mul_temp = temp/10;
> 				}
> 				result_temp1[130-1-real_num-(strlen(base)-1-i)] += mul_temp;
> 				add(result_temp2, result_temp1, 130-1, 130-1-real_num-(strlen(base)-1-i));
> 			}
> 			memcpy(result,result_temp2,sizeof(result));
> 			if (mul_temp == 0) real_num += (strlen(base)-1);
> 			else real_num += strlen(base);
> 		}
> 		//output
> 		memset(result_temp1, '\0', sizeof(result_temp1));
> 		if (decimal_num*n == 0) memcpy(result_temp1, &result[130-real_num], real_num);
> 		else if (decimal_num*n < real_num){
> 			memcpy(result_temp1, &result[130-real_num], real_num-decimal_num*n);
> 			result_temp1[real_num-decimal_num*n] = '.';
> 			memcpy(&result_temp1[real_num-decimal_num*n+1], &result[130-decimal_num*n], decimal_num*n);
> 		}
> 		else{
> 			result_temp1[0] = '.';
> 			memset(&result_temp1[1], '0', decimal_num*n-real_num);
> 			memcpy(&result_temp1[decimal_num*n-real_num+1], &result[130-real_num], real_num);
> 		}
> 
> 		puts(result_temp1);
> 		memset(r,'\0',sizeof(r));
> 	}
> 
> 	//system("pause");
> 	return 0;
> }

• Re:为什么我的代码AC不了，楼上给的测试数据都过了！！！求大神解救。 (5) zjut_szh 2015-02-11 13:10:27