概述
A Ministry for Defense sent a general to inspect the Super Secret Military Squad under the command of the Colonel SuperDuper. Having learned the news, the colonel ordered to all n squad soldiers to line up on the parade ground.
By the military charter the soldiers should stand in the order of non-increasing of their height. But as there's virtually no time to do that, the soldiers lined up in the arbitrary order. However, the general is rather short-sighted and he thinks that the soldiers lined up correctly if the first soldier in the line has the maximum height and the last soldier has the minimum height. Please note that the way other solders are positioned does not matter, including the case when there are several soldiers whose height is maximum or minimum. Only the heights of the first and the last soldier are important.
For example, the general considers the sequence of heights (4, 3, 4, 2, 1, 1) correct and the sequence (4, 3, 1, 2, 2) wrong.
Within one second the colonel can swap any two neighboring soldiers. Help him count the minimum time needed to form a line-up which the general will consider correct.
The first input line contains the only integer n (2 ≤ n ≤ 100) which represents the number of soldiers in the line. The second line contains integers a1, a2, ..., an (1 ≤ ai ≤ 100) the values of the soldiers' heights in the order of soldiers' heights' increasing in the order from the beginning of the line to its end. The numbers are space-separated. Numbers a1, a2, ..., an are not necessarily different.
Print the only integer — the minimum number of seconds the colonel will need to form a line-up the general will like.
4 33 44 11 22
2
7 10 10 58 31 63 40 76
10
In the first sample the colonel will need to swap the first and second soldier and then the third and fourth soldier. That will take 2 seconds. The resulting position of the soldiers is (44, 33, 22, 11).
In the second sample the colonel may swap the soldiers in the following sequence:
- (10, 10, 58, 31, 63, 40, 76)
- (10, 58, 10, 31, 63, 40, 76)
- (10, 58, 10, 31, 63, 76, 40)
- (10, 58, 10, 31, 76, 63, 40)
- (10, 58, 31, 10, 76, 63, 40)
- (10, 58, 31, 76, 10, 63, 40)
- (10, 58, 31, 76, 63, 10, 40)
- (10, 58, 76, 31, 63, 10, 40)
- (10, 76, 58, 31, 63, 10, 40)
- (76, 10, 58, 31, 63, 10, 40)
- (76, 10, 58, 31, 63, 40, 10)
解题说明:此题就是先找出最大最小值,由于是两两交换,判断位置即可。注意最小值出现在最大值左侧的情况,此时需要少一个步骤。
#include <iostream>
#include<cstdio>
#include<cstring>
#include<cmath>
using namespace std;
int main()
{
int n,i;
int max,min;
int pomax,pomin;
int sum;
int a[102];
scanf("%d",&n);
max=0;
min=101;
for(i=0;i<n;i++)
{
scanf("%d",&a[i]);
if(a[i]<=min)
{
min=a[i];
pomin=i;
}
if(a[i]>max)
{
max=a[i];
pomax=i;
}
}
if(pomin>=pomax)
{
sum=n-pomin-1+pomax;
}
else
{
sum=n-pomin-1+pomax-1;
}
printf("%dn",sum);
return 0;
}
最后
以上就是清秀小海豚为你收集整理的A. Arrival of the General的全部内容,希望文章能够帮你解决A. Arrival of the General所遇到的程序开发问题。
如果觉得靠谱客网站的内容还不错,欢迎将靠谱客网站推荐给程序员好友。
发表评论 取消回复