1103 : Taking Photo

时间限制Time Limit 2 秒Sec 内存限制Memory Limit 128 兆MB 提交次数Submitted 33 次Times 通过次数Solved 3 次Times

标准评测 Standard

从标准输入读入，结果写到标准输出。评测将输出拆成 token，与标准答案逐项比较，不按整段逐字节比对。 Read from standard input and write to standard output. The judge splits the output into tokens and compares them with the official answer; it does not compare raw bytes.

比对Compare	token 相同即通过。中间的空格、制表符、换行可多可少。Matching tokens pass. Extra spaces, tabs, or newlines between them are ignored.
不同则错Differs	token 个数或内容不同即错误。23 与 2 3、02 与 2、2.0 与 2 均视为不同。A different token count or value is wrong. 23 vs 2 3, 02 vs 2, and 2.0 vs 2 all differ.
输入Input	标准输入，格式见题面。Standard input; format as in the statement.
输出Output	标准输出。Standard output.

模板Template

C++ C Java Python

#include <iostream>
using namespace std;
int main() {
    int a, b;
    cin >> a >> b;
    cout << (a + b) << endl;
    return 0;
}

#include <stdio.h>
int main() {
    int a, b;
    scanf("%d%d", &a, &b);
    printf("%d\n", a + b);
    return 0;
}

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a = in.nextInt();
        int b = in.nextInt();
        System.out.println(a + b);
    }
}

a, b = map(int, input().split())
print(a + b)

题目描述Description

There are some people from a company sitting in a line and waiting to take a group photo. For some reason, the people coming from the same department want to sit together, i.e., sit in some continuous seats. Note that the seats cannot be moved, but they can change seats with others. Now, they need your help to figure out the minimum number of people involved in changing seats.

输入格式Input

There will be at most 200 test cases. Each case begins with one integer n(3 ≤ n ≤ 30), the number of the people. The next line contains n integers x_i(1 ≤ x_i ≤ n), describing the department identifiers of the people from left to right. People with the same identifier belong to the same department.

输出格式Output

For each test case, print the minimum number of people involved in changing seats.

CSGCPC

1103 : Taking Photo

题目描述Description

输入格式Input

输出格式Output

样例Sample

出题Author

来源Source