zoukankan      html  css  js  c++  java
  • Joseph UVA 1452 Jump

    题目传送门

     1 /*
     2     数学:约瑟夫环问题的变形,首先定义f[i]表示剩下i个人时,最后一个选出的人,有个公式:f[i] = (f[i-1] + m) % i
     3         f[1] = 0(编号从0开始),那么类似最后一个数的求法,先找到剩2个人和剩3个人时,最后的编号,然后跟着最后一个的一起递推
     4 */
     5 /************************************************
     6 * Author        :Running_Time
     7 * Created Time  :2015-8-8 14:26:38
     8 * File Name     :UVA_1459.cpp
     9  ************************************************/
    10 
    11 #include <cstdio>
    12 #include <algorithm>
    13 #include <iostream>
    14 #include <sstream>
    15 #include <cstring>
    16 #include <cmath>
    17 #include <string>
    18 #include <vector>
    19 #include <queue>
    20 #include <deque>
    21 #include <stack>
    22 #include <list>
    23 #include <map>
    24 #include <set>
    25 #include <bitset>
    26 #include <cstdlib>
    27 #include <ctime>
    28 using namespace std;
    29 
    30 #define lson l, mid, rt << 1
    31 #define rson mid + 1, r, rt << 1 | 1
    32 typedef long long ll;
    33 const int MAXN = 5e5 + 10;
    34 const int INF = 0x3f3f3f3f;
    35 const int MOD = 1e9 + 7;
    36 
    37 void Joseph(int n, int m)    {
    38     int ans1 = 0, ans2 = 0, ans3 = 0;
    39     for (int i=2; i<=n; ++i)    {
    40         ans1 = (ans1 + m) % i;
    41         if (i == 2) {       //2个人就是0或1
    42             ans2 = !ans1;
    43         }
    44         else if (i == 3)    {
    45             ans2 = (ans2 + m) % i;
    46             bool vis[3];    memset (vis, false, sizeof (vis));  
    47             vis[ans1] = vis[ans2] = true;
    48             for (int i=0; i<3; ++i) {
    49                 if (!vis[i])    {
    50                     ans3 = i;   break;
    51                 }
    52             }
    53         }
    54         else    {
    55             ans2 = (ans2 + m) % i;
    56             ans3 = (ans3 + m) % i;
    57         }
    58     }
    59 
    60     printf ("%d %d %d
    ", ans3 + 1, ans2 + 1, ans1 + 1);
    61 }
    62 
    63 int main(void)    {     //UVA 1452 Jump
    64     int T;  scanf ("%d", &T);
    65     while (T--) {
    66         int n, m;   scanf ("%d%d", &n, &m);
    67         Joseph (n, m);
    68     }
    69 
    70     return 0;
    71 }
    编译人生,运行世界!
  • 相关阅读:
    go 本地安装 grpc-go
    vscode python code-runner 中文乱码解决
    spring-cloud-sleuth 学习资源
    vscode 快键键资源整理
    vscode and python
    redis分布式锁
    TF-IDF算法解释
    spring 4.1 xml配置头部信息 maven配置信息
    google像apple 30亿美元购买流量
    spring 启动异常Failed to read candidate component class
  • 原文地址:https://www.cnblogs.com/Running-Time/p/4713188.html
Copyright © 2011-2022 走看看