国产探花免费观看_亚洲丰满少妇自慰呻吟_97日韩有码在线_资源在线日韩欧美_一区二区精品毛片,辰东完美世界有声小说,欢乐颂第一季,yy玄幻小说排行榜完本

首頁 > 學院 > 開發設計 > 正文

PAT A1073. Scientific Notation (20)

2019-11-11 02:08:24
字體:
來源:轉載
供稿:網友

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular exPRession [+-][1-9]"."[0-9]+E[+-][0-9]+ which means that the integer portion has exactly one digit, there is at least one digit in the fractional portion, and the number and its exponent's signs are always provided even when they are positive.

Now given a real number A in scientific notation, you are supposed to print A in the conventional notation while keeping all the significant figures.

Input Specification:

Each input file contains one test case. For each case, there is one line containing the real number A in scientific notation. The number is no more than 9999 bytes in length and the exponent's absolute value is no more than 9999.

Output Specification:

For each test case, print in one line the input number A in the conventional notation, with all the significant figures kept, including trailing zeros,

Sample Input 1:
+1.23400E-03Sample Output 1:
0.00123400Sample Input 2:
-1.2E+10Sample Output 2:
-12000000000
#include <cstdio>#include <algorithm>#include <cmath>#include <cstring>#define Max 100001using namespace std;int main(){	char a[Max],b[Max],c[Max];	int z=-1,f=0,bf=0,cf=0,y=-1;	int m,n=0,x,d,nm=0;	int num[Max];	scanf("%s",a);	if(a[0]=='-') printf("-");	m=a[0];	for(int i=3;i<strlen(a);i++)	{		if(a[i]=='E') { 			x=i-3;			d=i;			f=1;		   		}		else if(f==0)		{			b[bf++]=a[i];		}		else if(f==2&y!=-1)		{			c[cf++]=a[i];		}		else if(f==1)		{			f=2;			if(a[i]=='-'){				y=0;			}			else if(a[i]='+'){				y=1;			}		}			}	for(int i=0;i<strlen(a);i++)	{		if(a[i]>='0'&&a[i]<='9')			num[nm++]=a[i]-'0';		if(a[i]=='E')  break;	}	for(int i=0;i<cf;i++)	{		n=n*10+(c[i]-'0');	}	if(y==0)	{		n=n+bf-1;		printf("0.");		for(int i=0;i<=n-nm;i++)  printf("0");		for(int i=0;i<nm;i++) printf("%d",num[i]);		printf("/n");	}	else if(y==1)	{		if(n>bf){			n=n-bf;	        for(int i=0;i<nm;i++) printf("%d",num[i]);			for(int i=0;i<n;i++) printf("0");		}		else {			n=bf-n;			for(int i=0;i<nm-n;i++) {printf("%d",num[i]); z=i;}			 if(z<nm-1) printf(".");			for(int i=nm-n;i<nm;i++) printf("%d",num[i]);		}		printf("/n");	}	system("pause");	return 0;}
發表評論 共有條評論
用戶名: 密碼:
驗證碼: 匿名發表
主站蜘蛛池模板: 南岸区| 临猗县| 盐亭县| 措勤县| 阜康市| 新源县| 伊春市| 衢州市| 汽车| 历史| 两当县| 比如县| 洛浦县| 都江堰市| 洛隆县| 宁海县| 麻栗坡县| 黎平县| 贵阳市| 临澧县| 土默特右旗| 盐源县| 彰化县| 香河县| 辉南县| 天长市| 顺昌县| 喜德县| 乾安县| 灯塔市| 登封市| 江安县| 西乌珠穆沁旗| 天峨县| 犍为县| 通河县| 大英县| 尖扎县| 揭东县| 奉新县| 灵璧县|