Submission #1027541

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1027541	2024-07-19 07:25:12	_8_8_	Boat (APIO16_boat)	C++17	0 / 100	985 ms	9556 KiB

boat

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#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
const int  N = 1e3 + 20, MOD = (int)1e9+7;
ll binpow(ll a,ll b) {
    ll ans = 1,k = a;
    while(b) {
        if(b % 2)ans *= k;
        ans %= MOD;
        k *= k;
        k %= MOD;
        b /= 2ll;
    }
    return ans;
}
ll bp[N];
ll ceis(ll n,ll k){
    if(k > n) return 0;     
    ll d = 1;
    for(ll i = n - k + 1;i <= n;i++){
        d = i % MOD * d % MOD;
    }
    for(ll i = 2;i <= k;i++){   
        d = d * bp[i]%MOD;
    }
    return d;
}
 
 
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