Submission #22628

#	Time	Username	Problem	Language	Result	Execution time	Memory
22628		현우야 이거 플로우야 (#40)	Fully Generate (KRIII5_FG)	C++11	0 / 7	0 ms	1308 KiB

FG

#include <cstdio>
#include <map>
using namespace std;

map<long long, long long> dp;
int maxi = 2;

long long gol(long long n) {
	long long sum = dp[1];
	long long i;
	for (i = 2; i <= n; i++) {
		dp[i] = 1 + dp[i - dp[dp[i - 1]]];
		sum += dp[i];
		if (sum >= n) break;
	}
	return i;
}

long long gal(long long n) {
	n++;
	if (n % 2) return (2 * n * n - 2) / 8;
	return n * n / 4;
}

long long pow(long long a, long long n) {
	if (n == 0) return 1;
	if (n == 1) return a;
	if (n % 2) return a * pow(a, n - 1) % 1000000007;
	long long r = pow(a, n / 2);
	return r * r % 1000000007;
}

int main() {
	dp[1] = 1;
    long long n;
    scanf("%lld", &n);
    if (n == 1) {
    	printf("1\n");
    	return 0;
    }
    long long ans = 1;
    long long g = gol(n);
    for (int i = 2; i < g; i++)
    	ans = (ans * pow(i, i / 2 + 1)) % 1000000007;
    for (int i = 0; i <= n - gal(g); i++)
    	ans = (ans * g) % 1000000007;
    printf("%lld\n", ans);
    return 0;
}

Compilation message (stderr)

FG.cpp: In function 'int main()':
FG.cpp:36:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld", &n);
                      ^

• Subtask 1: 0 / 2
• Subtask 2: 0 / 5