Submission #964810

#	Time	Username	Problem	Language	Result	Execution time	Memory
964810		Trisanu_Das	Dancing Elephants (IOI11_elephants)	C++17	Compilation error	0 ms	0 KiB

elephants

#include <bits/stdc++.h>
using namespace std;
 
int l, a[150005], a_[150005], n;
 
void init(int N, int L, int X[]){
  n = N; l = L;
  a_[0] = INT_MIN, a_[n + 1] = INT_MAX;
  for(int i = 0; i < n; i++) a_[i + 1] = a[i] = X[i];
}
 
int update(int idx, int val){
  int i = 0;
  while(a_[i] != a[idx]) ++i;
  a_[i] = a[idx] = val;
  while(a_[i - 1] > a_[i]) swap(a_[i - 1], a_[i]), i--;
  while(a_[i + 1] < a_[i]) swap(a_[i + 1], a_[i]), i++;
  int ans = 1; ll last = a_[1];
  for(int i = 2; i <= n; i++)
    if(a_[i] - last > l) ++ans, last = a_[i];
  
  return ans;
}

Compilation message (stderr)

elephants.cpp: In function 'int update(int, int)':
elephants.cpp:18:16: error: 'll' was not declared in this scope; did you mean 'l'?
   18 |   int ans = 1; ll last = a_[1];
      |                ^~
      |                l
elephants.cpp:20:16: error: 'last' was not declared in this scope
   20 |     if(a_[i] - last > l) ++ans, last = a_[i];
      |                ^~~~