看起来基本一样,我原来的是dfs到叶子的时候再去判断路径是不是合理,所以我中途把这条路径存在一个vector里面了,后面是直接存在一个map里面的,就这点多余的操作竟然会超时,我也是服了。
Besides the correlation of pseudo random sequence, which is momentous for multiuser system, the linear complexity and nonlinear complexity of codes are crucial for communication security. A chaotic sequence generator based on digital filter structure is proposed. Two DFS units arc combined, whereas the...
--afterward 2. Re:acm hdu4325 Flowers(区间最大叠加数) for( i=0;i<N;++i ) { scanf( "%d%d", &a, &b ); for( int j=a; j<=b; ++j ) p[j]++; }比如说a=2,b=5,就是说在2,3,... --魔鬼的惊叹 POJ 3561 Pseudographical recognizer(搜索) View Code 找出一刀切得痕迹,感觉...
2010-11-16 23:28:12,759 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode... 2010-11-16 23:28:22,764 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode... 2010-11-16 23:28:32,772 INFO org.apache.hadoop.hbase.util.FSUtils...
A Novel Anti-Collision Algorithm for Large Scale of UHF RFID Tags Access Systems Based on the existing dynamic frame slotted Aloha (DFSA) algorithm, a sub-frame observation and cyclic redundancy check (CRC) grouping combined dynamic ... Xu Zhang,Yi He,Haiwen Yi,... - Tech Science Press 被...
helper(root.left, map); helper(root.right, map); map[root.val]--; } privatebooleanisPalindrome(int[] map){ intsingle=0; for(inti=0; i < map.length; i++) { if(map[i] %2==1) { single++; } } returnsingle >1?false:true; } }...
The high-frequency on-chip clock generators used in modern digital system-on-chips (SoCs) require the ability to provide dynamic frequency scaling (DFS), which generates the output frequency by multiplying the frequency of the input clock (=fref) by various integer or fractional values. In these...