Closed Luzhiled closed 2 years ago
$O(\log n)$ ใจๆธใใใฆใใใปใใฎๅไฝใฏ็พ็ถใฎๅฎ่ฃ ใ ใจ (ใใใใ)
seg.set(k, x);
ใงใฏใชใใฆ
seg.set(k, x);
seg.recalc(k + seg.sz);
ใจๆธใๅฟ ่ฆใใใใใ
ใใ่ใใใซ่จใฃใฆใใใฎใงใใฃใจ็ฐกๅใชๆๆณใใใฃใใใใใงใใ
ๅฅใฎใกใฝใใ็จๆใใใปใใ็ญใใใใจๆใใพใ
๐ฒ
TODO https://judge.yosupo.jp/submission/57852 ใซ็ฝฎใๆใใ
https://github.com/ei1333/library/blob/d1b0d478f92b7fefc587686bb8d73726aa23111f/docs/lazy-segment-tree.md#L8
https://github.com/ei1333/library/blob/d1b0d478f92b7fefc587686bb8d73726aa23111f/structure/segment-tree/lazy-segment-tree.cpp#L26-L28