标签：
Description
Conversion between the metric and English measurement systems is relatively simple. Often, it involves either multiplying or dividing by a constant. You must write a program that converts between the following units:
| Type | Metric | English | equivalent |
| Weight | 1.000 | kilograms | 2.2046 pounds |
| Weight | 0.4536 | kilograms | 1.0000 pound |
| Volume | 1.0000 | liter | 0.2642 gallons |
| Volume | 3.7854 | liters | 1.0000 gallon |
Input
The first line of input contains a single integer N, (1 <= N <= 1000) which is the number of datasets that follow.
Each dataset consists of a single line of input containing a floating point (double precision) number, a space and the unit specification for the measurement to be converted. The unit specification is one of kg, lb, l, or g referring to kilograms, pounds, liters and gallons respectively.
Output
For each dataset, you should generate one line of output with the following values: The dataset number as a decimal integer (start counting at one), a space, and the appropriately converted value rounded to 4 decimal places, a space and the unit specification for the converted value.
Sample Input
5
1 kg
2 l
7 lb
3.5 g
0 l
Sample Output
1 2.2046 lb#include<stdio.h>
#include <string.h>
int main()
{
int n, i, count;
char a[1001];
double result, x;
while(~scanf("%d", &n))
{
for(i=0;i<n;i++)
{
scanf("%lf %s", &x, a);
if(strcmp(a, "kg")==0)
{
result=2.2046*x;
printf("%d %.4f lb\n", i+1, result);
}
else if(strcmp(a, "lb")==0)
{
result=0.4536*x;
printf("%d %.4f kg\n", i+1, result);
}
else if(strcmp(a, "l")==0)
{
result=0.2642*x;
printf("%d %.4f g\n", i+1, result);
}
else if(strcmp(a, "g")==0)
{
result=3.7854*x;
printf("%d %.4f l\n", i+1, result);
}
}
}
return 0;
}标签：
原文地址：http://blog.csdn.net/unusualnow/article/details/43647059
