YaoYao is fond of playing his chains. He has a chain
containing n diamonds on it. Diamonds are numbered from 1 to n.
At first, the
diamonds on the chain is a sequence: 1, 2, 3, …, n.
He will perform two types
of operations:
CUT a b c: He will first cut down the chain from the ath
diamond to the bth diamond. And then insert it after the cth diamond on the
remaining chain.
For example, if n=8, the chain is: 1 2 3 4 5 6 7 8; We
perform “CUT 3 5 4”, Then we first cut down 3 4 5, and the remaining chain would
be: 1 2 6 7 8. Then we insert “3 4 5” into the chain before 5th diamond, the
chain turns out to be: 1 2 6 7 3 4 5 8.

FLIP a b: We first cut down the
chain from the ath diamond to the bth diamond. Then reverse the chain and put
them back to the original position.
For example, if we perform “FLIP 2 6” on
the chain: 1 2 6 7 3 4 5 8. The chain will turn out to be: 1 4 3 7 6 2 5
8

He wants to know what the chain looks like after perform m operations.
Could you help him?

 

There will be multiple test cases in a test data.

For each test case, the first line contains two numbers: n and m (1≤n,
m≤3*100000), indicating the total number of diamonds on the chain and the number
of operations respectively.
Then m lines follow, each line contains one
operation. The command is like this:
CUT a b c // Means a CUT operation, 1 ≤
a ≤ b ≤ n, 0≤ c ≤ n-(b-a+1).
FLIP a b    // Means a FLIP operation, 1 ≤ a
< b ≤ n.
The input ends up with two negative numbers, which should not be
processed as a case.

 

For each test case, you should print a line with n
numbers. The ith number is the number of the ith diamond on the chain.

 

 

 

 

 

 #include<cstdio>

 #include<algorithm>

 #include<cstring>

 #include<cmath>

 #include<iostream>

 using namespace std;

 const int N = ;

 int ch[N][],fa[N],tag[N],siz[N],data[N];

 int Root,n,m,cnt;

 inline int read() {

     int x = ,f = ;char ch = getchar();

     for (; ch<''||ch>''; ch = getchar()) if (ch=='-') f = -;

     for (; ch>=''&&ch<=''; ch = getchar()) x = x *  + ch - '';

     return x * f;

 }

 inline void pushup(int x) {

     siz[x] = siz[ch[x][]] + siz[ch[x][]] + ;

 }

 inline void pushdown(int x) {

     if (tag[x]) {

         tag[ch[x][]] ^= ;tag[ch[x][]] ^= ;

         swap(ch[x][],ch[x][]);

         tag[x] ^= ;

     }

 }

 inline int son(int x) {

     return x == ch[fa[x]][];

 }

 inline void rotate(int x) {

     int y = fa[x],z = fa[y],b = son(x),c = son(y),a = ch[x][!b];

     if (z) ch[z][c] = x;else Root = x;fa[x] = z;

     ch[x][!b] = y;fa[y] = x;

     ch[y][b] = a;if (a) fa[a] = y;

     pushup(y);pushup(x);

 }

 inline void splay(int x,int rt) {

     while (fa[x] != rt) {

         int y = fa[x],z = fa[y];

         if (z==rt) rotate(x);

         else {

             if (son(x) == son(y)) rotate(y),rotate(x);

             else rotate(x),rotate(x);

         }

     }

 }

 inline int getkth(int k) {

     int p = Root;

     while (true) {

         pushdown(p);

         if (siz[ch[p][]] +  == k) return p;

         if (ch[p][] && k <= siz[ch[p][]] ) p = ch[p][];

         else {

             k -= ((ch[p][] ? siz[ch[p][]] : ) + );

             p = ch[p][];

         }

     }

 }

 inline void rever(int l,int r) {

     int L = getkth(l),R = getkth(r + );

     splay(L,);splay(R,L);

     tag[ch[R][]] ^= ;

 }

 inline void cut(int l,int r,int p) {

     int L = getkth(l),R = getkth(r+);

     splay(L,);splay(R,L);

     int tmp = ch[R][];

     fa[tmp] = ;ch[R][] = ;

     pushup(R);pushup(L);

     L = getkth(p+),R = getkth(p+);

     splay(L,);splay(R,L);

     fa[tmp] = R;ch[R][] = tmp;

     pushup(R);pushup(L);

 }

 int build(int l,int r) {

     if (l > r) return ;

     int mid = (l + r) >> ;

     int t = build(l,mid-);

     ch[mid][] = t;fa[t] = mid;

     t = build(mid+,r);

     ch[mid][] = t;fa[t] = mid;

     pushup(mid);

     return mid;

 }

 void print(int x) {

     if (!x) return ;

     pushdown(x);

     print(ch[x][]);

     if (data[x] >  && data[x] < n+) {

         if (cnt==) printf("%d",data[x]),cnt = ;

         else printf(" %d",data[x]);

     }

     print(ch[x][]);

 }

 inline void init() {

     Root = cnt = ;

     memset(ch,,sizeof(ch));

     memset(fa,,sizeof(fa));

     memset(tag,,sizeof(tag));

     memset(siz,,sizeof(siz));

     memset(data,,sizeof(data));

 }

 int main() {

     int a,b,c;

     char s[];

     while (scanf("%d%d",&n,&m)!=EOF && !(n==-&&m==-)) {

         init();

         for (int i=; i<=n+; ++i) data[i] = i-;

         Root = build(,n+);

         while (m--) {

             scanf("%s",s);

             if (s[]=='C') {

                 a = read(),b = read(),c = read();

                 cut(a,b,c);

             }

             else {

                 a = read(),b = read();

                 rever(a,b);

             }

         }

         print(Root);

         printf("\n");

     }

     return ;

 }