xfstart07
Get busy living or get busy dying

#include < iostream >
using   namespace  std;

int  n,m;
int  cc[ 100010 ],c[ 100010 ];
int  bo[ 100010 ];
inline 
int  lowbit( int  x){
    
return  x & ( - x);
}
void  modify1( int  x){
    
while (x <= 100000 ){
        cc[x]
++ ;
        x
+= lowbit(x);
    }
}
void  modify( int  x, int  s){
    
while (x <= 100000 ){
        c[x]
+= s;
        x
+= lowbit(x);
    }
}
int  getsum( int  x){
    
int  s = 0 ;
    
while (x){
        s
+= c[x];
        x
-= lowbit(x);
    }
    
return  s;
}
int  main()
{
    
for ( int  i = 1 ;i <= 100000 ; ++ i)
        cc[i]
= 0 ;
    
for ( int  i = 1 ;i <= 100000 ; ++ i)
        modify1(i);
    
int  t;
    scanf(
" %d " , & t);
    
while (t -- ){
        scanf(
" %d%d " , & n, & m);
        
for ( int  i = 1 ;i <= n; ++ i){
            c[i]
= cc[i];
            bo[i]
= 1 ;
        }
        
while (m -- ){
            
int  k,x,y;
            scanf(
" %d " , & k);
            
if (k){
                scanf(
" %d%d " , & x, & y);
                
if (x > y){
                    
int  tmp = x;
                    x
= y;y = tmp;
                }
                
int  s = getsum(y - 1 ) - getsum(x - 1 );
                
if (s == y - x)
                    printf(
" 1\n " );
                
else {
                    s
= getsum(n) - s;
                    
if (s == n - (y - x))
                        printf(
" 1\n " );
                    
else
                        printf(
" 0\n " );
                }
            }
            
else {
                scanf(
" %d " , & x);
                
if (bo[x])
                    modify(x,
- 1 );
                
else  
                    modify(x,
1 );
                bo[x]
= 1 - bo[x];
            }
        }
    }
    
return   0 ;
}




posted on 2009-05-02 08:49 xfstart07 阅读(154) 评论(0)  编辑 收藏 引用 所属分类: 代码库

只有注册用户登录后才能发表评论。
网站导航: 博客园   IT新闻   BlogJava   知识库   博问   管理