```
c.m[i][j]+=x.m[i][k]*y.m[k][j]%mo;
```
改成
```
c.m[i][j]=c.m[i][j]%mo+x.m[i][k]%mo*y.m[k][j]%mo;
```
就有80分了，T了2个点
by 2311241987j @ 2019-01-27 09:06:29
@[2311241987j](/space/show?uid=34228) 改成
```cpp
c.m[i][j]=(c.m[i][j]+x.m[i][k]*y.m[k][j]%mo)%mo;
```
by foreverlasting @ 2019-01-27 09:15:39
@[2311241987j](/space/show?uid=34228) 取模次数太多会使常数变大，然后就T了
by foreverlasting @ 2019-01-27 09:17:04
谢谢，但是为什么这样会快这么多？@[foreverlastnig](/space/show?uid=32878)
by 2311241987j @ 2019-01-27 09:17:43
@[foreverlastnig](/space/show?uid=32878) 谢谢ORZ
by 2311241987j @ 2019-01-27 09:18:16