Unverified Commit 6d96c66c authored by Ycrpro's avatar Ycrpro Committed by GitHub
Browse files

代码格式修改

parent 2e00ac61

docs/ds/bit.md

+3 −5
Original line number Diff line number Diff line
@@ -67,9 +67,8 @@ int lowbit(int x) { 
那么对于 **单点修改** 就更轻松了：



```cpp

void change(int x, int k) {

  while (x <= n)  //不能越界

  {

void add(int x, int k) {

  while (x <= n) { //不能越界

    c[x] = c[x] + k;

    x = x + lowbit(x);

  }
@@ -79,8 +78,7 @@ void change(int x, int k) { 
每次只要在他的上级那里更新就行，自己就可以不用管了。



```cpp

int getsum(int x)  // a[1]……a[x]的和

{

int getsum(int x) { // a[1]……a[x]的和

  int ans = 0;

  while (x >= 1) {

    ans = ans + c[x];