oj.uz

Submission #782070

# Submission time Handle Problem Language Result Execution time Memory
782070 2023-07-13T15:14:30 Z Ahmed57 Sirni (COCI17_sirni) C++17
140 / 140
 3144 ms 559996 KB 
//#pragma GCC optimize("Ofast,O3,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include<bits/stdc++.h>

using namespace std;
//DSU
int mn = 100001;
int pr[100001];
int gs[100001];

int findleader(int x){
    if(pr[x]==x){
        return x;
    }
    return pr[x] = findleader(pr[x]);
}
bool mergegroup(int x,int y){
    int led1 = findleader(x);
    int led2 = findleader(y);
    if(led1==led2)return 0;
    if(gs[led1]>gs[led2]){
        pr[led2]=led1;
        gs[led1]+=gs[led2];
    }else{
        pr[led1]=led2;
        gs[led2]+=gs[led1];
    }
    return 1;
}
vector<pair<int,int>> adj[10000001];
int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    set<int> s;
    int ma = 0;
    for(int i = 0;i<n;i++){
        int x;cin>>x;
        s.insert(x);
        ma = max(ma,x);
    }
    assert(ma<=1e7);
    vector<int> arr;
    for(auto i:s)arr.push_back(i);
    n = arr.size();
    for(int i = 0;i<n;i++)pr[i] = i , gs[i] = 1;
    for(int i = 0;i<n;i++){
        int j = i+1;
        for(int e = arr[i];e<=ma;e+=arr[i]){
            while(j<n&&arr[j]<e)j++;
            if(j<n)adj[arr[j]%arr[i]].push_back({i,j});
            j++;
        }
    }
    long long all = 0;
    for(int i = 0;i<=1e7;i++){
        for(int j = 0;j<adj[i].size();j++){
        if(mergegroup(adj[i][j].first,adj[i][j].second))all+=i;
        }
    }
    cout<<all<<"\n";
    return 0;
}

Compilation message

sirni.cpp: In function 'int main()':
sirni.cpp:57:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |         for(int j = 0;j<adj[i].size();j++){
      |                       ~^~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 127 ms 235352 KB Output is correct
2 Correct 137 ms 237820 KB Output is correct
3 Correct 125 ms 235392 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 235296 KB Output is correct
2 Correct 184 ms 235920 KB Output is correct
3 Correct 129 ms 235508 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 124 ms 235280 KB Output is correct
2 Correct 130 ms 235248 KB Output is correct
3 Correct 127 ms 235416 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2206 ms 250580 KB Output is correct
2 Correct 1909 ms 277912 KB Output is correct
3 Correct 1512 ms 254256 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 237716 KB Output is correct
2 Correct 234 ms 258896 KB Output is correct
3 Correct 1517 ms 249476 KB Output is correct

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2318 ms 262204 KB Output is correct
2 Correct 2121 ms 293092 KB Output is correct
3 Correct 2092 ms 254292 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 399 ms 240628 KB Output is correct
2 Correct 1940 ms 286788 KB Output is correct
3 Correct 1632 ms 253800 KB Output is correct

Subtask #8
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2199 ms 254048 KB Output is correct
2 Correct 2652 ms 466488 KB Output is correct
3 Correct 2179 ms 257252 KB Output is correct

Subtask #9
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2265 ms 253892 KB Output is correct
2 Correct 3144 ms 559996 KB Output is correct
3 Correct 2086 ms 261484 KB Output is correct

Subtask #10
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 220 ms 238604 KB Output is correct
2 Correct 2541 ms 554480 KB Output is correct
3 Correct 1677 ms 255364 KB Output is correct