Submission #363333

#	Time	Username	Problem	Language	Result	Execution time	Memory
363333		buyolitsez	Bubble Sort 2 (JOI18_bubblesort2)	C++17	17 / 100	9083 ms	1004 KiB

bubblesort2

#include "bubblesort2.h"
#include <bits/stdc++.h>

using namespace std;

//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")

#define eb emplace_back

typedef long long ll;


const ll ADD = 1000000;

std::vector<int> countScans(std::vector<int> aa,std::vector<int> xx,std::vector<int> vv){
    vector <ll> a, x, v;
    for (auto u : aa) {
        a.eb(u);
    }
    for (int i = 0; i < xx.size(); ++i) {
        x.eb(xx[i]);
        v.eb(vv[i]);
    }
    int n = a.size(), q = x.size();
    vector <int> s(q, n - 1);
    for (int i = 0; i < n; ++i) {
        a[i] = a[i] * ADD + i;
    }
    for(int f = 0; f < q; ++f) {
        a[x[f]] = v[f] * ADD + x[f];
        ll mx = 0;
        for (int i = 0; i < n; ++i) {
            ll cnt = 0;
            for (int j = 0; j < i; ++j) {
                if (a[j] > a[i]) {
                    ++cnt;
                }
            }
            mx = max(mx, cnt);
        }
        s[f] = mx;
    }
    return s;
}

Compilation message (stderr)

bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     for (int i = 0; i < xx.size(); ++i) {
      |                     ~~^~~~~~~~~~~

• Subtask 1: 17 / 17
• Subtask 2: 0 / 21
• Subtask 3: 0 / 22
• Subtask 4: 0 / 40