Submission #1203423

#TimeUsernameProblemLanguageResultExecution timeMemory
1203423Muaath_5Hexagonal Territory (APIO21_hexagon)C++20
3 / 100
0 ms328 KiB
#include <bits/stdc++.h> #define ll long long using namespace std; const ll MOD = 1000000007; const ll DIV_6 = 686070594; // binpow(6, MOD-2); int draw_territory(int N, int a, int b, vector<int> D, vector<int> L) { const ll A = a, B = b; const ll len = L[0]+1; const ll cnt = (len*(len+1)/2)%MOD; const ll sum_of_powers = len*(len+1)%MOD * (2*len+1)%MOD * DIV_6%MOD; return ( (A*cnt)%MOD + (B*(sum_of_powers - cnt+MOD)%MOD)%MOD )%MOD; }
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