Submission #741554

# Submission time Handle Problem Language Result Execution time Memory
741554 2023-05-14T10:27:48 Z MarwenElarbi Bubble Sort 2 (JOI18_bubblesort2) C++14
0 / 100
21 ms 2652 KB
#include <bits/stdc++.h>
#include "bubblesort2.h"
#include <ext/pb_ds/assoc_container.hpp>
#define vi vector<int>
#define ve vector
#define ll long long
#define vl vector<ll>
#define vll vector<pair<ll,ll>>
#define onbit __builtin_popcount
#define ii pair<int,int>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 1e18
#define eps 1e-7
#define eps1 1e-2
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 1e5+5
using namespace std;
using namespace __gnu_pbds;
template <class T>
using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
const ll MOD = 1e9+7;
const int nax = 1e4+5;
const int MAX_VAL = 1e6;
double PI=3.14159265359;
int arx[8]={1,1,0,-1,-1,-1, 0, 1};
int ary[8]={0,1,1, 1, 0,-1,-1,-1};
/*typedef complex<int> Point;
#define X real()
#define Y imag()*/
/*void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}*/
vector<pair<ll,int>> tab(nax);
vi segtree(nax*4);
vi upd(nax*4);
void update(int left,int right,int value,int pos,int l,int r)
{
    if (l>=left&&r<=right){
        upd[pos]+=value;
        segtree[pos]+=value;
        return;
    }
    if (r<=left||l>=right) return;
    int mid=(l+r)/2;
    update(left,right,value,pos*2+1,l,mid);
    update(left,right,value,pos*2+2,mid,r);
    segtree[pos] = max(segtree[pos*2+1],segtree[pos*2+2])+upd[pos];
}
std::vector<int> countScans(std::vector<int> A, std::vector<int> X, std::vector<int> V){
    int n,q;
    n=A.size();
    q=X.size();
    vi nabba;
    vi check(n+q);
    map<int,int> ind;
    for (int i = 0; i < n; ++i)
    {
        check[i]=A[i];
    }
    for (int i = 0; i < q; ++i)
    {
        check[i+n]=V[i];
    }
    sort(check.begin(),check.end());
    int cur=0;
    for (int i = 0; i < check.size(); ++i)
    {
        if (i==0)  {
            ind[check[i]]=cur;
            cur++;
        }
        else{
            if (check[i]==check[i-1]) {
                continue;
            }
            ind[check[i]]=cur;
            cur++;
        }
    }
    map<int,set<int>> pos;
    for (int i = 0; i < n; ++i)
    {
        pos[ind[A[i]]].insert(i);
        //cout << ind[A[i]]<<endl;
        update(ind[A[i]],cur,-1,0,0,nax*4);
    }
    for (int i = 0; i < cur; ++i)
    {
        if ((int)pos[i].size()>0){
            update(i,i+1,*pos[i].rbegin()+1,0,0,nax*4);
        }
    }
    for (int i = 0; i < q; ++i)
    {
        int x=X[i];
        int nw=V[i];
        int lst=A[i];
        A[x]=nw;
        lst=ind[lst];
        nw=ind[nw];
        int lstpos=*pos[lst].rbegin();
        pos[lst].erase(x);
        if ((int)pos[lst].size()>0) update(lst,lst+1,(*pos[lst].rbegin()-lstpos),0,0,nax*4);
        else update(lst,lst+1,-lstpos-1,0,0,nax*4);
        update(lst,cur,1,0,0,nax*4);
        if ((int)pos[nw].size()==0){
            pos[nw].insert(x);
            update(nw,nw+1,x+1,0,0,nax*4);
        }else{
            lstpos=*pos[nw].rbegin();
            pos[nw].insert(x);
            update(nw,nw+1,(*pos[nw].rbegin()-lstpos),0,0,nax*4);
        }
        update(nw,cur,-1,0,0,nax*4);
        nabba.pb(segtree[0]);
        //cout << segtree[0]<<endl;
    }
    return nabba;
}

Compilation message

bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:73:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |     for (int i = 0; i < check.size(); ++i)
      |                     ~~^~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 21 ms 2652 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -