```cpp
bool cmp1(sum i,sum j){
if(i.x!=j.x) return i.x<j.y;
if(i.y!=j.y) return i.y<j.y;
if(i.z!=j.z) return i.z<j.y;
return i.xb<=j.xb;
}
```
改成
```cpp
bool cmp1(sum i,sum j){
if(i.x!=j.x) return i.x<=j.y;
if(i.y!=j.y) return i.y<=j.y;
if(i.z!=j.z) return i.z<=j.y;
return i.xb<=j.xb;
}
```
by jeoflorr32 @ 2023-04-23 20:39:57
~~还有第一份代码好像抄错了~~
by jeoflorr32 @ 2023-04-23 20:41:54