mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
25 lines
347 B
C++
25 lines
347 B
C++
|
#include <stdio.h>
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
int i,n,a[101],sum;
|
||
|
|
while(scanf("%d",&n),n)
|
||
|
|
{
|
||
|
|
sum=0; a[0]=0;
|
||
|
|
for(i=1;i<=n;i++)
|
||
|
|
scanf("%d",a+i);
|
||
|
|
for(i=0;i<n;i++)
|
||
|
|
{
|
||
|
|
if(a[i]<=a[i+1])
|
||
|
|
{
|
||
|
|
sum+=(a[i+1]-a[i])*6+5;
|
||
|
|
}
|
||
|
|
else if(a[i]>a[i+1])
|
||
|
|
{
|
||
|
|
sum+=(a[i]-a[i+1])*4+5;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
printf("%d\n",sum);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|