Submission #22595

#	Time	Username	Problem	Language	Result	Execution time	Memory
22595		의식의흐름코딩 (#40)	Fully Generate (KRIII5_FG)	C++14	2 / 7	500 ms	100408 KiB

FG

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <vector>
#include <algorithm>
#include <stack>
#include <queue>
#include <deque>
#include <utility>
#include <functional>
#include <list>
#include <cmath>
#include <string>
#include <cstring>
#include <set>
#include <map>
#define MOD 1000000007
using namespace std;

long long dnq(long long a, int n)
{
	if (n == 1)
		return a%MOD;
	if (n % 2 == 0)
	{
		long long k = dnq(a, n / 2);
		return (k*k)%MOD;
	}
	else
		return (a*dnq(a, n - 1))%MOD;
}

int main() {
	//freopen("input.txt", "r", stdin);
	long long n;
	scanf("%lld", &n);
	vector<pair<int, int> > v;
	v.push_back(make_pair(1, 1));
	v.push_back(make_pair(2, 2));
	long long ans = 4;
	if (n == 1)
		ans = 1;
	else if (n == 2)
		ans = 2;
	else if (n == 3)
		ans = 4;
	else {
		for (long long g = 3, k = 3, t = 1, j = 1; k < n; g++)
		{
			v.push_back(make_pair(g, v[t].first));
			if (k + v[t].first > n)
				ans = (ans * dnq(g, n - k)) % MOD;
			else
				ans = (ans * dnq(g, v[t].first)) % MOD;
			k += v[t].first;
			j++;
			if (j >= v[t].second)
			{
				t++;
				j = 0;
			}

		}
	}
	printf("%lld\n", ans);
}

Compilation message (stderr)

FG.cpp: In function 'int main()':
FG.cpp:36:19: 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