제출 #393888

#제출 시각아이디문제언어결과실행 시간메모리
393888rainboy마상시합 토너먼트 (IOI12_tournament)C11
100 / 100
79 ms2952 KiB
#define N 100000 #define N_ (1 << 17) int st[N_ * 2], n_; int get(int l, int k) { int r = n_ - 1; for (l += n_, r += n_; l <= r; l >>= 1, r >>= 1) if ((l & 1) == 1) { if (k >= st[l]) k -= st[l]; else { while (l < n_) if (k < st[l << 1 | 0]) l = l << 1 | 0; else k -= st[l << 1 | 0], l = l << 1 | 1; return l - n_; } l++; } return n_; } void build(int n) { int i; for (i = 0; i < n; i++) st[n_ + i] = 1; for (i = n_ - 1; i > 0; i--) st[i] = st[i << 1 | 0] + st[i << 1 | 1]; } void remove_(int i) { for (i += n_; i > 0; i >>= 1) st[i]--; } int ft[N]; void update(int i, int n, int x) { while (i < n) { ft[i] += x; i |= i + 1; } } int query(int i) { int x = 0; while (i >= 0) { x += ft[i]; i &= i + 1, i--; } return x; } int GetBestPosition(int n, int m, int r, int *aa, int *ll, int *rr) { static int rr_[N]; int n1, h, i, k_, i_; n_ = 1; while (n_ < n) n_ <<= 1; build(n); n1 = n; for (h = 0; h < m; h++) { int k = rr[h] - ll[h]; ll[h] = get(0, ll[h]), rr[h] = (rr[h] == n1 - 1 ? n : get(0, rr[h] + 1)) - 1; while (k--) remove_(get(ll[h] + 1, 0)); n1 -= rr[h] - ll[h]; } rr_[n - 1] = n - 1; for (i = n - 2; i >= 0; i--) rr_[i] = aa[i] > r ? i : rr_[i + 1]; build(n); k_ = -1, i_ = -1; for (h = 0; h < m; h++) if (rr_[ll[h]] >= rr[h]) update(ll[h], n, 1), update(rr[h] + 1, n, -1); else while ((i = get(ll[h], 0)) <= rr[h]) { int k = query(i); if (k_ < k || k_ == k && i_ > i) k_ = k, i_ = i; remove_(i); } return i_; }

컴파일 시 표준 에러 (stderr) 메시지

tournament.c: In function 'GetBestPosition':
tournament.c:88:27: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   88 |     if (k_ < k || k_ == k && i_ > i)
      |                   ~~~~~~~~^~~~~~~~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...