Submission #1113956

#TimeUsernameProblemLanguageResultExecution timeMemory
1113956lucascgarRainforest Jumps (APIO21_jumps)C++17
4 / 100
2394 ms2640 KiB
#include <bits/stdc++.h>

using namespace std;

/*
se eu tenho um cara da esquerda sempre vale pegar primeiro cara que der da direita
se eu tenho um destino na direita sempre vale pegar o maior cara da esquerda q chega la
nenhuma subtituição nos intervalos muda nada pq 
*/

typedef pair<int, int> pii;
typedef pair<long long, long long> pll;
typedef pair<long double, long double> pdd;

const int MAXN = 2e5+10, MAXQ = 1e5+10, BIG = 1e9+8;

int n, h[MAXN], ds[MAXN];
bool thing = 0;
void init(int N, vector<int> H){
    n = N;
    thing = 1;
    for (int i=0;i<n;i++){
        h[i] = H[i];
        if (h[i]!=i+1) thing=0;
    }


}
int minimum_jumps(int A, int B, int C, int D){  // A <= B < C <= D
    if (thing){
        return C-B;
    }
    vector<int> ps(n+1, 0);
    for (int i=A;i<=D;i++) ps[h[i]]++;
    for (int i=1;i<=n;i++) ps[i] += ps[i-1];

    // vector<int> lf, rg;
    // for (int i=A;i<=B;i++) lf.push_back(h[i]);
    // for (int i=C;i<=D;i++) rg.push_back(h[i]);

    // sort(lf.begin(), lf.end());
    // sort(rg.begin(), rg.end());


    // int i=0, ans = BIG;
    // for (int j=0;j<rg.size();j++){
    //     while (i+1<lf.size() && lf[i+1]<rg[j]) i++;
    //     if (lf[i]<rg[j]){
    //         int cst = ps[rg[j]]-ps[lf[i]];
    //         if (cst<ans) ans = cst;
    //     }
    // }

    int ans = BIG;
    for (int i=A;i<=B;i++){

        for (int j=C;j<=D;j++) if(h[j]>h[i]){
            ans = min(ans, ps[h[j]]-ps[h[i]]);
        }

    }


    if (ans==BIG) return -1;
    return ans;

}
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