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//初始化 void
init_rmq( int
n){ for ( int
i=0;i<n;i++)d[i][0]=a[i]; for ( int
j=1;(1<<j)<=n;j++){ for ( int
i=0;i+(1<<j)-1<n;i++) d[i][j]=max(d[i][j-1],d[i+(1<<(j-1))][j-1]); } } //查询 int
query_rmq( int
L, int R){ int
k=0; while (1<<(k+1)<=R-L+1)k++; return
max(d[L][k],d[R-(1<<k)+1][k]); } |
原文:http://www.cnblogs.com/forever97/p/3576948.html