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XDOJ_1008_水

http://acm.xidian.edu.cn/problem.php?id=1008

 

约瑟夫环,小数据,水过。

 

#include<iostream>#include<cstring>#include<cstdio>#include<algorithm>using namespace std;int n,k;int nextt[200005],lastt[200005];int main(){    scanf("%d%d",&n,&k);    for(int i = 1;i < n;i++)    nextt[i] = i+1;    for(int i = 2;i <= n;i++)    lastt[i] = i-1;    nextt[n] = 1;    lastt[1] = n;    printf("%d",k);    nextt[lastt[k]] = nextt[k];    lastt[nextt[k]] = lastt[k];    int cnt = n-1,now = nextt[k];    while(cnt)    {        int left = (k-1)%cnt;        while(left--)    now = nextt[now];        printf(" %d",now);        nextt[lastt[now]] = nextt[now];        lastt[nextt[now]] = lastt[now];        now = nextt[now];        cnt--;    }    putchar(\n);    return 0;}

 

XDOJ_1008_水