2018.11.01 neither_nor 的随(rand)

任重而道远 AC代码: #include<bits/stdc++.h> using namespace std; const int Mod = 1e9 + 7; int f[1005], tmp[1005], rt[1005]; int read () { int x = 0, f = 0; char c = getchar (); while (!isdigit (c)) f |= (
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