Submission #761889

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
761889	2023-06-20 11:00:24	MinaRagy06	Sky Walking (IOI19_walk)	C++17	24 / 100	707 ms	391364 KiB

walk

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define SZ(x) (int)x.size()
struct bheap {
    vector<int> heap, mp;
    vector<ll> val;
    bheap() {}
    bheap(int n) {
        val.assign(n, 1e9);
        mp.assign(n, -1);
    }
    void sink(int pos) {
        while ((pos << 1) + 1 < SZ(heap)) {
            int l = (pos << 1) + 1, r = (pos << 1) + 2;
            int smallest = l;
            if (r < SZ(heap) && val[heap[r]] < val[heap[l]]) smallest = r;
            if (val[heap[smallest]] < val[heap[pos]]){
                mp[heap[smallest]] = pos;
                mp[heap[pos]] = smallest;
                swap(heap[pos], heap[smallest]);
            } else {
                break;
            }
            pos = smallest;
        }
    }
    bool swim(int pos) {
        int p = (pos - 1) >> 1;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 14 / 14
• Subtask 3: 0 / 15
• Subtask 4: 0 / 18
• Subtask 5: 0 / 43