Submission #62060

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
62060	2018-07-27 10:58:57	aome	Dancing Elephants (IOI11_elephants)	C++17	100 / 100	8025 ms	119752 KiB

elephants

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#include "elephants.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 150005;
const int B = 500;
int n, L;
int a[N], in[N];
int jump[N], f[N];
int szVec;
vector<int> arr;
vector< pair<int, int> > vec[N];
void calc(vector< pair<int, int> > &vec) {
  int ptr = 0, sz = vec.size();
  for (int i = 0; i < sz; ++i) {
    while (ptr < sz && vec[ptr].first <= vec[i].first + L) ptr++;
    if (ptr == sz) jump[vec[i].second] = vec[i].second;
    else jump[vec[i].second] = vec[ptr].second;
  }
  for (int i = sz - 1; i >= 0; --i) {
    int j = vec[i].second;
    int k = jump[j];
    if (k == j) f[j] = 0;
    else {
      f[j] = f[k] + 1;
      if (jump[k] != -1) jump[j] = jump[k];
 
 
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Compilation message (stderr)

elephants.cpp: In function 'int update(int, int)':
elephants.cpp:95:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < arr.size(); ++i) {
                  ~~^~~~~~~~~~~~
elephants.cpp:107:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < arr.size(); ++i) {
                  ~~^~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 16 / 16
• Subtask 3: 24 / 24
• Subtask 4: 47 / 47
• Subtask 5: 3 / 3