Description Title:
input
a first row is the number of n (0 <n <10) points.
Each line represents two points followed by two floating point numbers x1, x2 composition.
Output
the output line length is set between the farthest point, accurate to four decimal places.
Input Sample
6
34.0 23.0
28.1 21.6
14.7 17.1
17.0 27.2
29.3 70.1
34.7 67.1
Sample Output
5 40.8000
# include<stdio.h>
# include<math.h>
int main()
{
int m,n,i,max1;
double a[1000],b[1000],max2=0;
scanf("%d",&n);
for(m=0;m<n*2;m++)
{
scanf("%lf",&a[m]);
}
for(m=1,i=0;m<n*2;m+=2,i++)
{
b[i]=fabs(a[m]-a[m-1]);//运用绝对值函数
if(b[i]>max2)
{
max1=i;
max2=b[i];
}
}
printf("%d %0.4lf",max1+1,max2);
return 0;
}
Note: differences and the requirements of the subject FABS () and ABS () function.
