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n的人围成一个环,然后按逆时针编号1-n,一个人从1开始逆时针数k个数,另一个人从N开始顺时针数m个数,然后 数出来的两个人出列(两个人可能一样)出列,然后继续此过程,直到全部人都出列为止。
思路是用循环链表来模拟,注意 要分情况来讨论。
#include <iostream> #include <cstdio> #include <cmath> #include <vector> #include <cstring> #include <string> #include <algorithm> #include <string> #include <set> #include <functional> #include <numeric> #include <sstream> #include <stack> #include <map> #include <queue> #define CL(arr, val) memset(arr, val, sizeof(arr)) #define ll long long #define inf 0x7f7f7f7f #define lc l,m,rt<<1 #define rc m + 1,r,rt<<1|1 #define pi acos(-1.0) #define L(x) (x) << 1 #define R(x) (x) << 1 | 1 #define MID(l, r) (l + r) >> 1 #define Min(x, y) (x) < (y) ? (x) : (y) #define Max(x, y) (x) < (y) ? (y) : (x) #define E(x) (1 << (x)) #define iabs(x) (x) < 0 ? -(x) : (x) #define OUT(x) printf("%I64d\n", x) #define lowbit(x) (x)&(-x) #define Read() freopen("a.txt", "r", stdin) #define Write() freopen("dout.txt", "w", stdout); #define N 100005 using namespace std; int n,k,m,l[25],r[25]; void init() { int i; for(i=1;i<=n;i++) { l[i]=i-1; r[i]=i+1; } r[n]=1;l[1]=n; } void link(int x,int y) { l[y]=x; r[x]=y; } int main() { //Read(); int i,j,t,x,y,c1,c2; while(scanf("%d%d%d",&n,&k,&m)!=EOF&&n+k+m) { init(); t=0; x=1;y=n; c1=c2=1; while(t<n) { //if(t) printf(","); if(c1==k&&c2==m) { if(x==y) { printf("%3d",x); x=r[x]; y=l[y]; link(y,x); t++; } else if(r[x]==y) { printf("%3d%3d",x,y); x=r[r[x]]; y=l[l[y]]; link(y,x); t+=2; } else if(r[y]==x) { printf("%3d%3d",x,y); x=r[x]; y=l[y]; link(y,x); t+=2; } else { printf("%3d%3d",x,y); x=r[x]; y=l[y]; link(l[l[x]],x); link(y,r[r[y]]); t+=2; } //printf("%d %d\n",x,y); c1=c2=1; if(t!=n) printf(","); } if(c1!=k) {c1++;x=r[x];} if(c2!=m) {c2++;y=l[y];} } printf("\n"); } return 0; }
UVA - 133 The Dole Queue(模拟链表)
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原文地址:http://blog.csdn.net/u012773338/article/details/42467377