救济金发放 UVA 133

#include<iostream>
using namespace std;
int n,k,m,a[25];
int go(int p,int d,int t)
{
while(t--){
do{p = (p+d+n-1)%n+1;
}
while(a[p] == 0); 
}
return p;
}
int main()
{
while(cin>>n>>k>>m && n){
for(int i = 1; i<=n;i++) a[i] = i;
int left = n;
int p1 = n,p2 = 1;
while(left){
p1 = go(p1,1,k);
p2 = go(p2,-1,m);
printf("%3d",p1);left--;
if(p2 != p1) {
printf("%3d",p2);left--;
}
a[p1] = a[p2] = 0;
if(left) cout<<",";
}
cout<<endl;
}
return 0;
}