`for(int i=1;i<=1000000;i++) (sum[i]=1ll*sum[i-1]*res[i])%mod;`
你这括号是怎么加的（
@[Sharing666](/user/394991)
by Sya_Resory @ 2022-01-18 16:13:53
@[Sya_Resory](/user/114082) woc，谢谢大佬
（我看了半天都没看出来
by Sharing666 @ 2022-01-18 16:18:42