oj.uz

Submission #984278

# Submission time Handle Problem Language Result Execution time Memory
984278 2024-05-16T12:35:01 Z farica Sirni (COCI17_sirni) C++14
84 / 140
 869 ms 786432 KB 
#include <bits/stdc++.h>
#define int long long

using namespace std;

const int MAX_N = 100000;

int parent[MAX_N], siz[MAX_N];

int find_parent(int x) {
    if(parent[x] == x) return x;
    return parent[x] = find_parent(parent[x]);
}

void unite(int a, int b) {
    int x = find_parent(a), y = find_parent(b);
    if(x==y) return;
    if(siz[x] < siz[y]) swap(x,y);
    siz[x] += siz[y];
    parent[y] = x;
}

void solve() {
    int n;
    cin >> n;
    vector<int>a;
    for(int i=0; i<n; ++i) {
        int tmp;
        cin >> tmp;
        assert(tmp>=1);
        a.push_back(tmp);
        parent[i] = i;
        siz[i] = 1;
    }
    sort(a.begin(), a.end());
    a.erase(unique(a.begin(), a.end()), a.end());
    int largest = a.back();
    vector<int>T(largest+1, -1);
    for(int i=0; i<a.size(); ++i) T[a[i]] = i;
    for(int i=largest-1; i>=0; --i) {
        if(T[i] != -1) continue;
        T[i] = T[i+1];
    }
    int ans = 0;
    vector<pair<int,pair<int,int>>>pq;
    for(int i=0; i<a.size()-1; ++i) {
        pq.push_back({a[i+1]%a[i], {i+1, i}});
        for(int j=2*a[i]; j<=largest; j+=a[i]) {
            int p = T[j];
            pq.push_back({a[p]%a[i], {p, i}});
        }
    }
    sort(pq.begin(), pq.end());
    for(int i=0; i<pq.size(); ++i) {
        int w = pq[i].first, x = pq[i].second.first, y = pq[i].second.second;
        if(find_parent(x) == find_parent(y)) continue;
        unite(x, y);
        ans += w;
    }
    cout << ans << endl;
}

signed main()
{
    int t=1;
    while(t--) solve();

    return 0;
}

Compilation message

sirni.cpp: In function 'void solve()':
sirni.cpp:39:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     for(int i=0; i<a.size(); ++i) T[a[i]] = i;
      |                  ~^~~~~~~~~
sirni.cpp:46:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |     for(int i=0; i<a.size()-1; ++i) {
      |                  ~^~~~~~~~~~~
sirni.cpp:54:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(int i=0; i<pq.size(); ++i) {
      |                  ~^~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 78956 KB Output is correct
2 Correct 295 ms 177136 KB Output is correct
3 Correct 35 ms 79184 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 800 KB Output is correct
2 Runtime error 500 ms 786432 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 78928 KB Output is correct
2 Correct 33 ms 78676 KB Output is correct
3 Correct 34 ms 79136 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 60852 KB Output is correct
2 Correct 621 ms 110248 KB Output is correct
3 Correct 298 ms 110248 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 16844 KB Output is correct
2 Correct 362 ms 110644 KB Output is correct
3 Correct 176 ms 57844 KB Output is correct

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 415 ms 111008 KB Output is correct
2 Correct 868 ms 208652 KB Output is correct
3 Correct 265 ms 62288 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 16600 KB Output is correct
2 Correct 869 ms 208544 KB Output is correct
3 Correct 286 ms 61872 KB Output is correct

Subtask #8
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 240 ms 131756 KB Output is correct
2 Runtime error 528 ms 786432 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 287 ms 132276 KB Output is correct
2 Runtime error 574 ms 786432 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #10
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 86588 KB Output is correct
2 Runtime error 664 ms 786432 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -