Submission #499777

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
499777	2021-12-29 12:26:18	Stickfish	Boat (APIO16_boat)	C++17	9 / 100	1737 ms	12380 KiB

boat

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#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
using ll = long long;
const ll MOD = 1000000007;
const int MAXN = 502;
ll fact[MAXN * 2];
ll rfact[MAXN * 2];
ll pw(ll a, ll m) {
    if (!m)
        return 1;
    a %= MOD;
    if (m % 2)
        return (a * pw(a, m - 1)) % MOD;
    return pw(a * a, m / 2);
}
ll choose[MAXN * 2][MAXN];
ll dp[MAXN * 2][MAXN];
ll ndp[MAXN * 2][MAXN];
ll a[MAXN];
ll b[MAXN];
signed main() {
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 0 / 22
• Subtask 3: 0 / 27
• Subtask 4: 0 / 42