[恢]hdu 1985

2011-12-17 06:13:33

地址：http://acm.hdu.edu.cn/showproblem.php?pid=1985

题意：单位换算。

mark：打表非常方便。

代码：

# include <stdio.h>
# include <string.h>


char tab[4][5] = {"kg", "lb", "l", "g"} ;
char outtab[4][5] = {"lb", "kg", "g", "l"} ;
double rate[4] = {2.2046, 0.4536, 0.2642, 3.7854} ;
char str[5] ;


int main ()
{
    int T, i, nCase = 1 ;
    double num ;
    scanf ("%d%*c", &T) ;
    while (T--)
    {
        scanf ("%lf %s%*c", &num, str) ;
        for (i = 0 ; i < 4 ; i++)
            if (strcmp(str, tab[i]) == 0) break ;
        printf ("%d %.4lf %s\n", nCase++, num*rate[i], outtab[i]) ;
    }
    return 0 ;
}