题目链接：http://www.bnuoj.com/bnuoj/problem_show.php?pid=29357
直接模拟就可以了。。
//STATUS:C++_AC_190MS_1884KB
#include <functional>
#include <algorithm>
#include <iostream>
//#include <ext/rope>
#include <fstream>
#include <sstream>
#include <iomanip>
#include <numeric>
#include <cstring>
#include <cassert>
#include <cstdio>
#include <string>
#include <vector>
#include <bitset>
#include <queue>
#include <stack>
#include <cmath>
#include <ctime>
#include <list>
#include <set>
//#include <map>
using namespace std;
//#pragma comment(linker,"/STACK:102400000,102400000")
//using namespace __gnu_cxx;
//define
#define pii pair<int,int>
#define mem(a,b) memset(a,b,sizeof(a))
#define lson l,mid,rt<<1
#define rson mid+1,r,rt<<1|1
#define PI acos(-1.0)
//typedef
typedef long long LL;
typedef unsigned long long ULL;
//const
const int N=;
const int INF=0x3f3f3f3f;
const int MOD=,STA=;
//const LL LNF=1LL<<60;
const double EPS=1e-;
const double OO=1e15;
const int dx[]={-,,,};
const int dy[]={,,,-};
const int day[]={,,,,,,,,,,,,};
//Daily Use ...
inline int sign(double x){return (x>EPS)-(x<-EPS);}
template<class T> T gcd(T a,T b){return b?gcd(b,a%b):a;}
template<class T> T lcm(T a,T b){return a/gcd(a,b)*b;}
template<class T> inline T lcm(T a,T b,T d){return a/d*b;}
template<class T> inline T Min(T a,T b){return a<b?a:b;}
template<class T> inline T Max(T a,T b){return a>b?a:b;}
template<class T> inline T Min(T a,T b,T c){return min(min(a, b),c);}
template<class T> inline T Max(T a,T b,T c){return max(max(a, b),c);}
template<class T> inline T Min(T a,T b,T c,T d){return min(min(a, b),min(c,d));}
template<class T> inline T Max(T a,T b,T c,T d){return max(max(a, b),max(c,d));}
//End int stb[N<<],ans[N];
int T,n,x,y; int main(){
// freopen("in.txt","r",stdin);
int i,j,k,ca=,la,ra,lb,rb,reva,revb;
scanf("%d",&T);
while(T--)
{
scanf("%d%d%d",&n,&x,&y);
k=reva=revb=;
la=,ra=n;
lb=rb=N-;
while(k<n){
if(reva){
for(i=x;i-- && la<=ra;la++){
if(revb)stb[--lb]=la;
else stb[rb++]=la;
}
}
else {
for(i=x;i-- && la<=ra;ra--){
if(revb)stb[--lb]=ra;
else stb[rb++]=ra;
}
}
reva^=;
if(revb){
for(i=y;i-- && lb<rb;lb++)
ans[k++]=stb[lb];
}
else {
for(i=y;i-- && lb<rb;)
ans[k++]=stb[--rb];
}
revb^=;
} printf("Case %d:",ca++);
for(i=n-;i>=;i--){
printf(" %d",ans[i]);
}
putchar('\n');
}
return ;
}