```
sum+=i*p[n-i].time;
```
应为
```
sum+=(n-i)*p[i].time;
```
没亲测，但应该是这样
by Goodrage @ 2021-09-11 16:17:17
@[精灵王爷_Fae](/user/283215) 还是82，请大佬再改一下
by WGXWGXWGX @ 2021-09-11 16:19:45
@[WGXWGXWGX](/user/463099)
sum改成double
by Goodrage @ 2021-09-11 16:23:29
@[精灵王爷_Fae](/user/283215) 谢谢，已过，谢谢thx
by WGXWGXWGX @ 2021-09-11 16:26:34