oj.uz

Submission #1061672

# Submission time Handle Problem Language Result Execution time Memory
1061672 2024-08-16T11:38:00 Z dimasnbayu Sirni (COCI17_sirni) C++17
126 / 140
 4632 ms 786432 KB 
#include<bits/stdc++.h>
using namespace std;
// #define int long long
const int sz=1e5+5;
int par[sz];
vector<int> arr;
vector<pair<int,pair<int,int>>> v;
int find(int x){
    if(par[x]==x) return x;
    else return par[x]=find(par[x]);
}
void merge(int x, int y){
    x=find(x),y=find(y);
    par[x]=y;
}
bool check(int x, int y){
    return find(x)==find(y);
}
signed main(){
    int n; cin>>n;
    for(int i=1;i<=n;i++){
        int a; cin>>a;
        arr.push_back(a);
    }
    sort(arr.begin(),arr.end());
    arr.erase(unique(arr.begin(),arr.end()), arr.end());
    int nx[arr.back()+5]={},av[arr.back()+5]={};
    // sort(arr.begin(),arr.end());
    for(int i=0;i<arr.size();i++){
        par[i]=i;
        av[arr[i]]=i;
    }
    int now=0;
    for(int i=0;i<=arr.back();i++){
        while(now+1<arr.size() && arr[now]<=i) now++;
        nx[i]=now;
        // cout<<nx[i]<<" ";
    }
    // cout<<endl;
    for(int i=0;i<arr.size();i++){
        // cout<<arr[i]<<" ";
        for(int j=arr[i];j<=arr.back();j+=arr[i]){
            if(i==nx[j]) continue;
            if(arr[av[j]]%arr[i]==0) v.push_back({0,{i,av[j]}});
            if(v.size()==0 || ((v.back().second.first!=i || v.back().second.second!=nx[j]))) v.push_back({arr[nx[j]]%arr[i],{i,nx[j]}});
        }
    }
    // cout<<endl;
    sort(v.begin(),v.end());
    int ans=0;
    for(int i=0;i<v.size();i++){
        // cout<<v[i].first<<" "<<v[i].second.first<<" "<<v[i].second.second<<endl;
        if(!check(v[i].second.first,v[i].second.second)){
            ans+=v[i].first;
            merge(v[i].second.first,v[i].second.second);
        }
    }
    cout<<ans;
}

Compilation message

sirni.cpp: In function 'int main()':
sirni.cpp:29:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for(int i=0;i<arr.size();i++){
      |                 ~^~~~~~~~~~~
sirni.cpp:35:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         while(now+1<arr.size() && arr[now]<=i) now++;
      |               ~~~~~^~~~~~~~~~~
sirni.cpp:40:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |     for(int i=0;i<arr.size();i++){
      |                 ~^~~~~~~~~~~
sirni.cpp:51:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |     for(int i=0;i<v.size();i++){
      |                 ~^~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 78676 KB Output is correct
2 Correct 100 ms 82828 KB Output is correct
3 Correct 76 ms 78820 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 604 KB Output is correct
2 Correct 851 ms 276276 KB Output is correct
3 Correct 57 ms 80120 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 78684 KB Output is correct
2 Correct 50 ms 78672 KB Output is correct
3 Correct 56 ms 78928 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 195 ms 34816 KB Output is correct
2 Correct 599 ms 107800 KB Output is correct
3 Correct 326 ms 59516 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 11520 KB Output is correct
2 Correct 271 ms 59700 KB Output is correct
3 Correct 197 ms 30004 KB Output is correct

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 385 ms 59184 KB Output is correct
2 Correct 812 ms 108728 KB Output is correct
3 Correct 272 ms 59952 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 9796 KB Output is correct
2 Correct 733 ms 108312 KB Output is correct
3 Correct 274 ms 60464 KB Output is correct

Subtask #8
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 304 ms 106064 KB Output is correct
2 Correct 4162 ms 473864 KB Output is correct
3 Correct 329 ms 105100 KB Output is correct

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 366 ms 129584 KB Output is correct
2 Runtime error 905 ms 786432 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #10
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 81860 KB Output is correct
2 Correct 4632 ms 474012 KB Output is correct
3 Correct 332 ms 59656 KB Output is correct