Submission #641739

#	Time	Username	Problem	Language	Result	Execution time	Memory
641739		Vladth11	The Potion of Great Power (CEOI20_potion)	C++14	14 / 100	2118 ms	49652 KiB

potion

#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "

using namespace std;
typedef long long ll;
typedef pair <int, int> pii;

const int NMAX = 100001;
const int VMAX = 101;
const int INF = 2e9;
const int MOD = 1000000007;
const int BLOCK = 447;
const int base = 117;
const int nr_of_bits = 24;
const int inv2 = 500000004;

set <int> events[NMAX], nou[NMAX];
int a[NMAX];
int n;

void init(int N, int D, int H[]) {
    n = N;
    for(int i = 0; i < N; i++){
        a[i] = H[i];
    }
}

void baga(int a, int b){
    if(events[a].find(b) == events[a].end())
        events[a].insert(b);
    else
        events[a].erase(b);
}

void curseChanges(int U, int A[], int B[]) {
    for(int i = 0; i < U; i++){
        baga(A[i], B[i]);
        baga(B[i], A[i]);
    }
    for(int i = 0; i < n; i++){
        for(auto x : events[i])
            nou[i].insert(a[x]);
    }
}

int question(int x, int y, int v) {
    int minim = 1e9;
    if(nou[x].size() == 0 || nou[y].size() == 0)
        return minim;
    for(auto p : nou[y]){
        int val = p;
        auto it = nou[x].lower_bound(val);
        if(it != nou[x].end()){
            minim = min(minim, abs((*it) - val));
        }
        it = nou[x].upper_bound(val);
        if(it != nou[x].begin()){
            it = prev(it);
            minim = min(minim, abs((*it) - val));
        }
    }
    return minim;
}

• Subtask 1: 0 / 0
• Subtask 2: 0 / 17
• Subtask 3: 14 / 14
• Subtask 4: 0 / 18
• Subtask 5: 0 / 21
• Subtask 6: 0 / 30