【HDOJ】3029 Scales

CF上有道类似的，做了那个这个简单多了。思路是取模。模等于1如何处理，模等于2如何分类分类讨论后。可解。
解得对数据排序后再输出。

 /* 3029 */
 #include <iostream>
 #include <string>
 #include <map>
 #include <queue>
 #include <set>
 #include <stack>
 #include <vector>
 #include <deque>
 #include <algorithm>
 #include <cstdio>
 #include <cmath>
 #include <ctime>
 #include <cstring>
 #include <climits>
 #include <cctype>
 #include <cassert>
 #include <functional>
 using namespace std;
 //#pragma comment(linker,"/STACK:102400000,1024000")

 #define mpii            map<int,int>
 #define vi                vector<int>
 #define pii                pair<int,int>
 #define vpii            vector<pair<int,int> >
 #define rep(i, a, n)     for (int i=a;i<n;++i)
 #define per(i, a, n)     for (int i=n-1;i>=a;--i)
 #define clr                clear
 #define pb                 push_back
 #define mp                 make_pair
 #define fir                first
 #define sec                second
 #define all(x)             (x).begin(),(x).end()
 #define SZ(x)             ((int)(x).size())
 #define lson            l, mid, rt<<1
 #define rson            mid+1, r, rt<<1|1

 vi l, r;

 void dfs(int m) {
     int tmp = m % ;
     int m_;

     if (m == )
         return ;

     if (tmp == ) {
         m_ = m/+;
     } else {
         m_ = m/;
     }

     dfs(m_);

     rep(i, , SZ(l))
         l[i] *= ;
     rep(i, , SZ(r))
         r[i] *= ;

     if (tmp == ) {
         r.pb();
     } else if (tmp == ) {
         l.pb();
     }
 }

 int main() {
     ios::sync_with_stdio(false);
     #ifndef ONLINE_JUDGE
         freopen("data.in", "r", stdin);
         freopen("data.out", "w", stdout);
     #endif

     int m;
     int lsz, rsz;

     while (scanf("%d",&m)!=EOF) {
         l.clear();
         r.clear();
         dfs(m);
         sort(all(l));
         sort(all(r));
         lsz = SZ(l);
         rsz = SZ(r);
         printf("%d", rsz);
         rep(i, , rsz)
             printf(" %d", r[i]);
         putchar('\n');

         printf("%d", lsz);
         rep(i, , lsz)
             printf(" %d", l[i]);
         putchar('\n');
     }

     #ifndef ONLINE_JUDGE
         printf("time = %d.\n", (int)clock());
     #endif

     return ;
 }