Submission #1253589

#	Time	Username	Problem	Language	Result	Execution time	Memory
1253589		antonn	Rotating Lines (APIO25_rotate)	C++20	16 / 100	97 ms	4224 KiB

rotate

#include "rotate.h"
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

template<typename T>
bool assign_min(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

template<typename T>
bool assign_max(T& a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

void energy(int n, vector<int> v) {
    vector<int> ord(n);
    iota(ord.begin(), ord.end(), 0);
    sort(ord.begin(), ord.end(), [&](int x, int y) {
        return v[x] < v[y];
    });
    int half = n / 2;
    vector<vector<int>> rot(20);
    for (int i = 0; i < half; i++) {
        int want = (v[ord[i]] + 25000) % 50000;
        int x = (want - v[ord[i + half]] + 50000) % 50000;
        for (int b = 0; b < 20; b++) {
            if (x & (1 << b)) {
                rot[b].push_back(ord[i + half]);
            }
        }
    }
    for (int b = 19; b >= 0; b--) {
        if (rot[b].empty()) {
            continue;
        }
        rotate(rot[b], (1 << b));
    }
}

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 11 / 11
• Subtask 3: 0 / 8
• Subtask 4: 0 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 20
• Subtask 7: 0 / 26