제출 #480029

#제출 시각아이디문제언어결과실행 시간메모리
480029rainboyTrol (COCI19_trol)C11
50 / 50
1 ms204 KiB
#include <stdio.h> long long sum(long long n) { return (n / 9) * 45 + (n % 9) * (n % 9 + 1) / 2; } int main() { int q; scanf("%d", &q); while (q--) { long long l, r; scanf("%lld%lld", &l, &r); printf("%lld\n", sum(r) - sum(l - 1)); } return 0; }

컴파일 시 표준 에러 (stderr) 메시지

trol.c: In function 'main':
trol.c:10:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |  scanf("%d", &q);
      |  ^~~~~~~~~~~~~~~
trol.c:14:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |   scanf("%lld%lld", &l, &r);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask 150 / 50

#Verdict Execution timeMemoryGrader output
Fetching results...