Submission #940810

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
940810	2024-03-07 16:38:03	rainboy	관대한 주인 (TOKI14_generous)	C11	100 / 100	6 ms	420 KiB

generous

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#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;
}
 
 
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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