oj.uz

Submission #1095524

# Submission time Handle Problem Language Result Execution time Memory
1095524 2024-10-02T13:21:48 Z 0pt1mus23 Sirni (COCI17_sirni) C++14
126 / 140
 5000 ms 537144 KB 
#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;
    unordered_map<int,int> idx;
    for(int i=0;i<n;i++){
        cin>>arr[i];
        idx[arr[i]]=i;
        lst.ins(arr[i]);
    }
    sort(all(arr));
    
    int mx = arr.back();
 
    for(auto v:lst){
        int c =v;
        int i= idx[v];
        while(c<=mx){
            auto it = lst.end();
            if(c==v){
                it = lst.upper_bound(c);
            }  
            else{
                it = lst.lower_bound(c);
            }
            if(it==lst.end()){
                break;
            }
            // cout<<v _ " ," _  c _ *it % v <<endl;
            int ib = idx[*it];
            event[ (*it) % v ].pb({i,ib});
            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
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 235324 KB Output is correct
2 Correct 120 ms 237912 KB Output is correct
3 Correct 115 ms 235604 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 235376 KB Output is correct
2 Correct 107 ms 235860 KB Output is correct
3 Correct 116 ms 235628 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 102 ms 235504 KB Output is correct
2 Correct 102 ms 235344 KB Output is correct
3 Correct 105 ms 235544 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 311 ms 255880 KB Output is correct
2 Correct 779 ms 281088 KB Output is correct
3 Correct 363 ms 257628 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 114 ms 238204 KB Output is correct
2 Correct 227 ms 258900 KB Output is correct
3 Correct 321 ms 252748 KB Output is correct

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 631 ms 267168 KB Output is correct
2 Correct 1046 ms 296296 KB Output is correct
3 Correct 384 ms 257972 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 174 ms 241828 KB Output is correct
2 Correct 846 ms 288828 KB Output is correct
3 Correct 365 ms 256088 KB Output is correct

Subtask #8
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 416 ms 257556 KB Output is correct
2 Correct 3726 ms 453464 KB Output is correct
3 Correct 457 ms 259732 KB Output is correct

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 409 ms 258060 KB Output is correct
2 Execution timed out 5062 ms 524404 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #10
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 143 ms 239440 KB Output is correct
2 Correct 4796 ms 537144 KB Output is correct
3 Correct 418 ms 259812 KB Output is correct