제출 #35189

#제출 시각아이디문제언어결과실행 시간메모리
35189cheater2k중앙값 배열 (balkan11_medians)C++14
100 / 100
56 ms4552 KiB
#include <bits/stdc++.h> using namespace std; const int N = 200005; int n, a[N], b[N]; int T[N]; bool used[N]; void upd(int x) { for(; x < N; x += x & -x) T[x]++; } int get(int x) { int res = 0; for (; x > 0; x -= x & -x) res += T[x]; return res; } int main() { scanf("%d", &n); for (int i = 1; i <= n; ++i) scanf("%d", b + i); int l = 1, r = 2 * n - 1; int pt = 0; for (int i = 1; i <= n; ++i) { if (!used[b[i]]) used[b[i]] = 1, a[++pt] = b[i], upd(b[i]); int med = b[i]; while(pt < 2 * i - 1) { while(l <= 2 * n - 1 && used[l]) ++l; while(r >= 1 && used[r]) --r; int smaller = get(med - 1); if (smaller < i - 1) a[++pt] = l, upd(l), used[l++] = 1; else if (pt - smaller < i) a[++pt] = r, upd(r), used[r--] = 1; } } for (int i = 1; i <= 2 * n - 1; ++i) printf("%d ", a[i]); printf("\n"); }

컴파일 시 표준 에러 (stderr) 메시지

medians.cpp: In function 'int main()':
medians.cpp:14:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
medians.cpp:15:49: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 1; i <= n; ++i) scanf("%d", b + i);
                                                 ^
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...