제출 #546539

#제출 시각아이디문제언어결과실행 시간메모리
546539MilosMilutinovicA Huge Tower (CEOI10_tower)C++14
컴파일 에러
0 ms0 KiB
#include <stdio.h> #define N 100000 #define MD 1000000007 int n, d, aa[N], bb[N]; long long dp[N]; void sort(int l, int r) { int i, cc0, cc1; if (l >= r) return; int m = (l + r) / 2; sort(l, m); sort(m + 1, r); cc0 = l, cc1 = m + 1; for (i = l; i <= r; i++) if (cc0 > m || (cc1 <= r && aa[cc0] > aa[cc1])) bb[i] = aa[cc1++]; else bb[i] = aa[cc0++]; for (i = l; i <= r; i++) aa[i] = bb[i]; } int main() { int i, j; scanf("%d%d", &n, &d); for (i = 0; i < n; i++) scanf("%d", &aa[i]); sort(0, n - 1); for (i = 0, j = 0; i < n; i++) { while (a[j] < a[i] - d) j++; dp[i] = (i == 0 ? 1LL : dp[i - 1]) * (i - j + 1), dp[i] = (dp[i] % MD); } printf("%lld\n", dp[n - 1]); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

tower.cpp: In function 'int main()':
tower.cpp:35:10: error: 'a' was not declared in this scope
   35 |   while (a[j] < a[i] - d)
      |          ^
tower.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |  scanf("%d%d", &n, &d);
      |  ~~~~~^~~~~~~~~~~~~~~~
tower.cpp:32:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |   scanf("%d", &aa[i]);
      |   ~~~~~^~~~~~~~~~~~~~