Submission #503316

#	Time	Username	Problem	Language	Result	Execution time	Memory
503316		rainboy	Kućice (COCI21_kucice)	C11	10 / 110	1 ms	284 KiB

Main

#include <stdio.h>

#define MD	1000000007

long long power(long long a, int k) {
	long long p = 1;

	while (k) {
		if (k & 1)
			p = p * a % MD;
		a = a * a % MD;
		k >>= 1;
	}
	return p;
}

int main() {
	int n;

	scanf("%d", &n);
	printf("%lld\n", n * power(2, n - 1) % MD);
	return 0;
}

Compilation message (stderr)

Main.c: In function 'main':
Main.c:20:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 30
• Subtask 3: 0 / 10
• Subtask 4: 0 / 30
• Subtask 5: 0 / 30