제출 #1129191

#제출 시각아이디문제언어결과실행 시간메모리
1129191mnbvcxz123Klavir (COCI17_klavir)C++20
160 / 160
161 ms22020 KiB
#include <stdio.h> #define N 1000000 #define MD 1000000007 int main() { static int aa[N], ff[N + 1], dp[N + 1]; int n, m, i, j; scanf("%d%d", &m, &n); for (i = 0; i < n; i++) scanf("%d", &aa[i]); ff[0] = -1, ff[1] = 0; for (i = -1, j = 0; j < n; i++, j++) { while (i >= 0 && aa[i] != aa[j]) i = ff[i]; ff[j + 1] = i + 1; dp[j + 1] = j == 0 ? m : ((long long) (dp[j] - dp[ff[j]] + MD) * m + dp[i + 1]) % MD; printf("%d\n", dp[j + 1]); } return 0; }

컴파일 시 표준 에러 (stderr) 메시지

klavir.cpp: In function 'int main()':
klavir.cpp:10:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |         scanf("%d%d", &m, &n);
      |         ~~~~~^~~~~~~~~~~~~~~~
klavir.cpp:12:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |                 scanf("%d", &aa[i]);
      |                 ~~~~~^~~~~~~~~~~~~~
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