Submission #940810

#	Time	Username	Problem	Language	Result	Execution time	Memory
940810		rainboy	관대한 주인 (TOKI14_generous)	C11	100 / 100	6 ms	420 KiB

generous

#include <stdio.h>

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

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

int main() {
	int a, b, l, r;

	scanf("%d%d%d%d", &a, &b, &l, &r);
	a = a % b * power(10, l - 1, b) % b;
	while (l <= r)
		printf("%lld", (long long) a * 10 / b), a = (long long) a * 10 % b, l++;
	printf("\n");
	return 0;
}

Compilation message (stderr)

generous.c: In function 'main':
generous.c:19:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |  scanf("%d%d%d%d", &a, &b, &l, &r);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 23 / 23
• Subtask 5: 12 / 12