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25 days ago
244 B
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ll M = 1000000007; ll mulmod(ll a, ll b, ll mod) { ll res = 0; a = a % mod; while (b > 0) { if (b % 2 == 1) res = (res + a) % mod; a = (a * 2) % mod; b /= 2; } return res % mod; }
ll M = 1000000007; ll mulmod(ll a, ll b, ll mod) { ll res = 0; a = a % mod; while (b > 0) { if (b % 2 == 1) res = (res + a) % mod; a = (a * 2) % mod; b /= 2; } return res % mod; }