Submission #56899

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
56899	2018-07-13 06:30:17	ainta	Swap (BOI16_swap)	C++17	100 / 100	497 ms	90160 KiB

swap

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#include<cstdio>
#include<algorithm>
#include<vector>
#define SZ 262144
using namespace std;
int w[262144], n, res[262144], R[262144];
vector<int>P[262144], D[262144], U[262144];
int Get(int nd, int x) {
  int t = lower_bound(P[nd].begin(), P[nd].end(), x + 1) - P[nd].begin();
  if (t == 0)return nd;
  return D[nd][t - 1];
}
int Get2(int nd, int x) {
  if (x == 0)return nd;
  return D[nd][x - 1];
}
int A[262144], B[262144];
void Do(int a) {
  if (a * 2 >= 262144) {
    R[a] = a;
    return;
  }
  int c1 = a * 2, c2 = a * 2 + 1;
  Do(c1);
  Do(c2);
  int CA = 0, CB = 0;
  for (auto &t : P[c1]) if (t < w[c1])A[CA++] = t;
  A[CA++] = w[c1];
  for (auto &t : P[c1]) if (t > w[c1])A[CA++] = t;
  for (auto &t : P[c2]) if (t < w[c2])B[CB++] = t;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

swap.cpp: In function 'int main()':
swap.cpp:78:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
swap.cpp:79:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (i = 1; i <= n; i++)scanf("%d", &w[i]);
                          ~~~~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 27 / 27
• Subtask 4: 20 / 20
• Subtask 5: 32 / 32