namespace collision mod

mod 998244353#defineg 3#defineig 332748118usingnamespacestd

long longusing namespacestd;constintn =1e5 10;intn,m,root,mod

联考20200608 t2 图

*/dp[i][j] =dp[i-1][j];dp[i][j]%=mod;}}cout dp[2020][1010];}

include<cmath> #define maxn (int)(1e6 100) #define mod

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