Submission #22529

#	Time	Username	Problem	Language	Result	Execution time	Memory
22529		AJAE (#40)	Fully Generate (KRIII5_FG)	C++14	2 / 7	500 ms	246020 KiB

FG

#include <cstdio>
#include <vector>

using namespace std;
using ll = long long;
ll MMOD = 1000000007;
ll popo(ll a, ll p) {
	ll r = 1;
	while (p) {
		if (p & 1) {
			r *= a;
			r %= MMOD;
		}
		a *= a;
		a %= MMOD;
		p >>= 1LL;
	}
	return r;
}

ll arr[31347599];
int sss[6] = { 0,1,2,4,12,36 };
int main()
{
	ll n;
	ll cnt = 0;
	ll ans = 1;
	scanf("%lld", &n);
	if (n <= 5) {
		printf("%d\n", sss[n]);
		return 0;
	}
	ll gsize = 4;
	arr[0] = 0;
	arr[1] = 1;
	arr[2] = 2;
	arr[3] = 2;
	cnt = 1 + 2 + 2;
	ans = 2 * 2 * 3 * 3;
	bool sw = true;
	for (int i = 3; sw; ++i) {
		ll &tmp = arr[i];
		ll ttmp = 1;
		int st = gsize;
		for (ll j = 0; j<tmp; ++j) {
			arr[gsize] = i;
			gsize++;
			cnt += i;
			if (cnt >= n) {
				ans *= popo(ttmp, i);
				ans %= MMOD;
				arr[gsize - 1] = i - (cnt - n);
				ans *= popo(gsize - 1, arr[gsize - 1]);
				ans %= MMOD;
				printf("%lld\n", ans);
				return 0;
			}
			ttmp *= (gsize - 1);
			ttmp %= MMOD;
		}
		ans *= popo(ttmp, i);
		ans %= MMOD;
	}

	return 0;
}

Compilation message (stderr)

FG.cpp: In function 'int main()':
FG.cpp:44:7: warning: unused variable 'st' [-Wunused-variable]
   int st = gsize;
       ^
FG.cpp:28:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld", &n);
                   ^

• Subtask 1: 2 / 2
• Subtask 2: 0 / 5