Submission #486514

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
486514	2021-11-11 21:39:57	nicolaalexandra	Dancing Elephants (IOI11_elephants)	C++14	100 / 100	7059 ms	15656 KiB

elephants

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#include <bits/stdc++.h>
#define DIM 150010
#define DIMBUCKET 400
#include "elephants.h"
using namespace std;
int n,lg,nr_buckets,l,q,cnt,poz,val;
int what_bucket[DIM],x[DIM],w[DIM];
pair <int,int> v[DIM],aux[DIM],dp[DIMBUCKET][DIMBUCKET*2];
vector <pair<int,int> > buckets[DIMBUCKET];
void update_bucket (int bucket){
    int el = 0;
    for (auto it : buckets[bucket])
        aux[++el] = it;
    int j = el+1;
    for (int i=el;i;i--){
        while (aux[j-1].first > aux[i].first + l)
            j--;
        if (j <= el){
            dp[bucket][i].first = dp[bucket][j].first + 1;
            dp[bucket][i].second = dp[bucket][j].second;
        } else {
            dp[bucket][i].first = 1;
            dp[bucket][i].second = aux[i].first + l;
        }
 
 
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Compilation message (stderr)

elephants.cpp: In function 'int query()':
elephants.cpp:71:26: warning: unused variable 'poz' [-Wunused-variable]
   71 |     int i = 1, val = -1, poz, sol = 0;
      |                          ^~~
elephants.cpp: In function 'void sterge(int, int, int)':
elephants.cpp:141:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  141 |     for (i=0;i<buckets[idx].size();i++)
      |              ~^~~~~~~~~~~~~~~~~~~~
elephants.cpp:145:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  145 |     for (int j=i+1;j<buckets[idx].size();j++)
      |                    ~^~~~~~~~~~~~~~~~~~~~
elephants.cpp: In function 'void adauga(int, int, int)':
elephants.cpp:153:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  153 |     for (i=0;i<buckets[idx].size();i++)
      |              ~^~~~~~~~~~~~~~~~~~~~

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