Submission #440600

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
440600	2021-07-02 14:02:06	rainboy	Meetings (IOI18_meetings)	C++11	100 / 100	3026 ms	152232 KiB

meetings

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#include "meetings.h"
using namespace std;
typedef vector<int> vi;
typedef vector<long long> vl;
const int N = 750000, H = 19;
long long min(long long a, long long b) { return a < b ? a : b; }
long long max(long long a, long long b) { return a > b ? a : b; }
int aa[N], qu[N], pp[N], qq[N], n; long long dp[N], dq[N];
int ii[H + 1][N], hh[N + 1];
void build(int n) {
  int h, i, j;
  for (i = 0; i < n; i++)
    ii[0][i] = i;
  for (h = 1; h <= H; h++)
    for (i = 0; i < n; i++)
      ii[h][i] = ii[h - 1][(j = i + (1 << h - 1)) >= n || aa[ii[h - 1][i]] >= aa[ii[h - 1][j]] ? i : j];
  for (i = 1, h = 0; i <= n; i++) {
    while (1 << h + 1 <= i)
      h++;
    hh[i] = h;
  }
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

meetings.cpp: In function 'void build(int)':
meetings.cpp:23:42: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   23 |    ii[h][i] = ii[h - 1][(j = i + (1 << h - 1)) >= n || aa[ii[h - 1][i]] >= aa[ii[h - 1][j]] ? i : j];
      |                                        ~~^~~
meetings.cpp:25:17: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   25 |   while (1 << h + 1 <= i)
      |               ~~^~~

• Subtask 1: 4 / 4
• Subtask 2: 15 / 15
• Subtask 3: 17 / 17
• Subtask 4: 24 / 24
• Subtask 5: 40 / 40