记录编号	334065	评测结果	AAAAAAAAAA
题目名称	[HAOI 2013]软件安装	最终得分	100
用户昵称	_Itachi	是否通过	通过
代码语言	C++	运行时间	0.315 s
提交时间	2016-10-31 18:40:09	内存使用	3.34 MiB

#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
const int maxn=50005<<2;
int n,m,f[maxn],L[maxn],R[maxn],lz[maxn],s,t,qx;
int Rabit_max(int a,int b){return a>b?a:b;}
#define ls rt<<1
#define rs rt<<1|1
#define Lson rt<<1,l,mid
#define Rson rt<<1|1,mid+1,r
void Rabit_up(int rt,int l,int r){
	f[rt]=Rabit_max(f[ls],f[rs]);
	if(f[rt]<R[ls]+L[rs])f[rt]=R[ls]+L[rs];
	int mid=(l+r)>>1;
	if(L[ls]==mid-l+1)L[rt]=L[ls]+L[rs];
	else L[rt]=L[ls];
	if(R[rs]==r-mid)R[rt]=R[rs]+R[ls];
	else R[rt]=R[rs];
}
void Rabit_down(int rt,int l,int r){
	if(!lz[rt])return;
	int mid=(l+r)>>1;
	lz[ls]=lz[rs]=lz[rt];
	if(lz[rt]==1)
		L[ls]=R[ls]=f[ls]=mid-l+1,
		L[rs]=R[rs]=f[rs]=r-mid;
	else 
		L[ls]=R[ls]=f[ls]=0,
		L[rs]=R[rs]=f[rs]=0;
	lz[rt]=0;
}
void Rabit_set(int rt,int l,int r){
	if(l==r){
		f[rt]=L[rt]=R[rt]=1;return;	
	}
	int mid=(l+r)>>1;
	Rabit_set(Lson),Rabit_set(Rson);
	Rabit_up(rt,l,r);
}
int Rabit_get(int rt,int l,int r){
	if(f[rt]<qx||l==r)return 0;
	if(L[rt]>=qx)return l;
	int mid=(l+r)>>1,res;
	Rabit_down(rt,l,r);
	res=Rabit_get(Lson);if(res)return res;
	if(R[ls]+L[rs]>=qx)return mid-R[ls]+1;
	return Rabit_get(Rson);
}
void Rabit_dig(int rt,int l,int r){
	if(s<=l&&r<=t){
		lz[rt]=qx;
		if(qx==1)R[rt]=L[rt]=f[rt]=r-l+1;
		else R[rt]=L[rt]=f[rt]=0;
		return;	
	}
	Rabit_down(rt,l,r);
	int mid=(l+r)>>1;
	if(s<=mid)Rabit_dig(Lson);
	if(t> mid)Rabit_dig(Rson);
	Rabit_up(rt,l,r);
}
void Rabit_main(){
	scanf("%d%d",&n,&m);int ope;Rabit_set(1,1,n);
	while(m--){
		scanf("%d",&ope);
		if(ope&1){
			scanf("%d",&qx),s=Rabit_get(1,1,n),t=s+qx-1;
			printf("%d\n",s);
			if(s)qx=-1,Rabit_dig(1,1,n);
		}
		else scanf("%d%d",&s,&t),t=s+t-1,qx=1,Rabit_dig(1,1,n);	
	}
}
int main(){
#define _Rabit _RABIT
#ifdef _Rabit
	freopen("haoi13t4.in","r",stdin);
	freopen("haoi13t4.out","w",stdout);
#endif
	Rabit_main();
#ifndef _Rabit
	getchar(),getchar();
#endif
	fclose(stdin);fclose(stdout);
	return 0;
}