Submission #1095530

#	Time	Username	Problem	Language	Result	Execution time	Memory
1095530		0pt1mus23	Sirni (COCI17_sirni)	C++14	140 / 140	2205 ms	539748 KiB

sirni

#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ins insert
#define pb push_back
#define putr(x) cout<<x<<endl;return;
#define all(x) x.begin(),x.end()
#define _ << " " <<  
const int   mod = 1e9+7 ,
            sze= 1e7 +25 ,
            inf = INT_MAX ,
            L = 31 ;
// credit : aykhn
int parent[sze];
int sz[sze];
int root(int node){
    if(parent[node]==node){
        return node;
    }
    return parent[node]=root(parent[node]);
}
int unite(int a,int b){
    int x = root(a);
    int y = root(b);
    if(x==y){
        return 0;
    }
    if(sz[y]>sz[x]){
        swap(y,x);
    }
    parent[y]=x;
    sz[x]+=sz[y];
    return 1;
}
 
vector<pair<int,int>> event[sze];
void opt1z(){
    int n;
    cin>>n;
    for(int i=0;i<=(int)n+23;i++){
        sz[i]=1;
        parent[i]=i;
    }
    int ans=0;
 
    vector<int> arr(n);
    set<int> lst;
    for(int i=0;i<n;i++){
        cin>>arr[i];
        lst.ins(arr[i]);
    }
    sort(all(arr));
    
    int mx = arr.back();
    int i =0;
    for(auto v:lst){
        int c =v;
        while(arr[i]!=v){
            i++;
        }
        while(c<=mx){
            auto it = arr.end();
            if(c==v){
                it = upper_bound(all(arr),c);
            }  
            else{
                it = lower_bound(all(arr),c);
            }
            if(it==arr.end()){
                break;
            }
            // cout<<v _ " ," _  c _ *it % v <<endl;
            event[ (*it) % v ].pb({i,it - arr.begin()});
            c = ((*it) / v +1) * v;
        }
    }
    for(int i =0;i<=mx;i++){
        for(auto v:event[i]){
            // cout<<i _ v.first _ "=> " _ v.second<<endl;
            if(unite(v.first,v.second)){
                ans+=i;
            }
        }
    }
 
 
    putr(ans);
}
 
signed main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
 
    int tt = 1;
    // cin>>tt;
    while(tt--){
        opt1z();
    }
 
    return 0;
}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 14 / 14
• Subtask 5: 14 / 14
• Subtask 6: 14 / 14
• Subtask 7: 14 / 14
• Subtask 8: 14 / 14
• Subtask 9: 14 / 14
• Subtask 10: 14 / 14