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Submission #747987

# Submission time Handle Problem Language Result Execution time Memory
747987 2023-05-25T09:05:59 Z Dan4Life Dancing Elephants (IOI11_elephants) C++17
26 / 100
 15 ms 2712 KB 
#include "elephants.h"
#include <bits/stdc++.h>
using namespace std;

const int mxN = (int)1.5e5+10;
const int B = 240;

set<int> S;
int n, L, ok, p[mxN/B];
unordered_map<int,int> b;
vector<pair<int,int>> block[mxN/B];

void ins(int x){
    b[x]++; if(b[x]!=1) return;
    if(ok) { S.insert(x); return; }
}

void del(int x){
    b[x]--; if(b[x]) return;
    if(ok) { S.erase(x); return;}
}

void init(int N, int l, int X[])
{
    n = N; L = l;
    if(L > mxN/B or 1) ok=1;
    for(int i = 0; i < n; i++)
        p[i]=X[i], ins(p[i]);
}

int update(int i, int y)
{
    del(p[i]); p[i]=y; ins(y);
    int ans = 0;
    if(ok){
        auto itr = S.begin();
        while(itr!=S.end()) itr = S.upper_bound(*itr+L), ans++;
        return ans;
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 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 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Runtime error 15 ms 2712 KB Execution killed with signal 11
8 Halted 0 ms 0 KB -

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Runtime error 15 ms 2712 KB Execution killed with signal 11
8 Halted 0 ms 0 KB -

Subtask #5
0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Runtime error 15 ms 2712 KB Execution killed with signal 11
8 Halted 0 ms 0 KB -