python/TangDou/XiTi/1074.cpp

#include <bits/stdc++.h>

using namespace std;

int main() {
    int N, M;
    cin >> N >> M;
    int a[5001] = {0};
    //全部开启N盏灯
    for (int i = 1; i <= N; ++i) {
        a[i] = 1;
    }
    //模拟每一个人
    for (int i = 1; i <= M; ++i) {
        for (int j = 1; j <= N; ++j) {
            if (j % i == 0) {
                a[j] = abs(a[j] - 1);
            }
        }
    }
    //输出
    string result = "";
    for (int i = 1; i <= N; ++i) {
        if (a[i] == 0) {
            //数字转字符串
            stringstream ss;
            ss << i;
            string str = ss.str();
            //拼接结果
            result += str + ",";
        }
    }
    if (result.length() > 0) result = result.substr(0, result.length() - 1);
    cout << result << endl;
    return 0;
}