oj.uz

Submission #777405

# Submission time Handle Problem Language Result Execution time Memory
777405 2023-07-09T08:05:53 Z a_aguilo Dancing Elephants (IOI11_elephants) C++14
50 / 100
 9000 ms 2468 KB 
#include "elephants.h"
#include<bits/stdc++.h>

using namespace std;


const int maxN = 150000;
int n, l;
int positionsCameras[maxN];
int positions[maxN];
int posPerNumber[maxN];

void init(int N, int L, int X[])
{
  n = N;
  l = L;
  for(int i = 0; i < N; ++i) {
    positions[i] = X[i];
    posPerNumber[i] = X[i];
  }
}

int find(int rep){
  int hi = n-1;
  int lo = 0;
  while(lo <= hi){
    int mid = lo + (hi - lo)/2;
    if(positions[mid] == rep) return mid;
    if(positions[mid] < rep) lo = mid+1;
    else hi = mid-1;
  }
  return 0;
}

int update(int i, int y)
{
  int replace = posPerNumber[i];
  posPerNumber[i] = y;
  int pos = find(replace);
  positions[pos] = y;
  while(pos && positions[pos] < positions[pos-1]) {
    swap(positions[pos], positions[pos-1]);
    pos--;
  }
  while(pos < (n-1) && positions[pos] > positions[pos+1]) {
    swap(positions[pos], positions[pos+1]);
    pos++;
  }
  int numCameras = 0;
  int right = -1;
  for(int j = 0; j < n; ++j){
    if(right < positions[j]){
      numCameras++;
      right = positions[j] + l;
    }
  }
  return numCameras;
}

/*
int main(){
  int N, L, Q, i, y;
  cin >> N >> L;
  int X[N];
  for(int i = 0; i < N; ++i) cin >> X[i];
  init(N, L, X);
  cin >> Q;
  while(Q--){
    cin >> i >> y;
    cout << update(i, y) << endl;
  }
  return 0;
}
*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 340 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1082 ms 1824 KB Output is correct
8 Correct 1980 ms 1880 KB Output is correct
9 Correct 1442 ms 2264 KB Output is correct
10 Correct 3162 ms 2284 KB Output is correct
11 Correct 3331 ms 2260 KB Output is correct
12 Correct 5719 ms 2264 KB Output is correct
13 Correct 3279 ms 2264 KB Output is correct

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1082 ms 1824 KB Output is correct
8 Correct 1980 ms 1880 KB Output is correct
9 Correct 1442 ms 2264 KB Output is correct
10 Correct 3162 ms 2284 KB Output is correct
11 Correct 3331 ms 2260 KB Output is correct
12 Correct 5719 ms 2264 KB Output is correct
13 Correct 3279 ms 2264 KB Output is correct
14 Correct 1133 ms 2120 KB Output is correct
15 Correct 4353 ms 2188 KB Output is correct
16 Execution timed out 9018 ms 2468 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #5
0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1082 ms 1824 KB Output is correct
8 Correct 1980 ms 1880 KB Output is correct
9 Correct 1442 ms 2264 KB Output is correct
10 Correct 3162 ms 2284 KB Output is correct
11 Correct 3331 ms 2260 KB Output is correct
12 Correct 5719 ms 2264 KB Output is correct
13 Correct 3279 ms 2264 KB Output is correct
14 Correct 1133 ms 2120 KB Output is correct
15 Correct 4353 ms 2188 KB Output is correct
16 Execution timed out 9018 ms 2468 KB Time limit exceeded
17 Halted 0 ms 0 KB -