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Submission #583136

# Submission time Handle Problem Language Result Execution time Memory
583136 2022-06-24T21:54:40 Z NintsiChkhaidze Sirni (COCI17_sirni) C++14
112 / 140
 5000 ms 436532 KB 
#include <bits/stdc++.h>
//#include <iostream>
//#include <vector>
#define s second
#define pb push_back
#define f first
using namespace std;

const int N = 100005,M = 10000005;
int p[N],ans,sz[N];
int m[M];

vector <pair<int,pair<int,int> > >  edges;
vector <pair<int,int> > d;

int P(int x){
    if (x == p[x]) return x;
    return p[x] = P(p[x]);
}

void dsu(int a,int b,int c){
    int pa = P(a),pb = P(b);
    if (pa == pb) return;
    ans += c;
    if (sz[pa] < sz[pb]) swap(pa,pb);
    sz[pa]+=sz[pb];
    sz[pb]=0;
    p[pb] = pa;
}

int main() {
    ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
    int n;
    cin>>n;
    for (int i = 1; i <= n; i++){
        int a;
        cin>>a;
        p[i] = i,sz[i] = 1;
        d.pb({a,i});
    }


    sort(d.begin(),d.end());
    int r = d.size() - 1;
    m[10000001] = -1;
    for (int i = 1e7; i >= 1; i--){
        m[i] = m[i + 1];
        while (r >= 0 && i <= d[r].f)
            m[i] = r--;
    }

    for (int y = 0; y < n; y++){
        if (y > 0 && d[y].f == d[y - 1].f){
            edges.pb({0,{y,y - 1}});
        }

        if (y + 1 < n && d[y+1].f - d[y].f < d[y].f)
            edges.pb({d[y+1].f - d[y].f,{y,y + 1}});

        if (y > 0 && d[y].f == d[y - 1].f) continue;
        for (int j = 2*d[y].f; j <= 1e7; j += d[y].f){
            if (m[j] < 0) continue;
            if (d[m[j]].f - j < d[y].f)
                edges.pb({d[m[j]].f - j,{y,m[j]}});
        }
    }

    sort(edges.begin(),edges.end());
    for (int i=0;i<edges.size();i++){
        int x = edges[i].s.f,y = edges[i].s.s,c = edges[i].f;
        dsu(x,y,c);
    }
    cout<<ans;
}

Compilation message

sirni.cpp: In function 'int main()':
sirni.cpp:69:19: 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]
   69 |     for (int i=0;i<edges.size();i++){
      |                  ~^~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 39624 KB Output is correct
2 Correct 90 ms 42704 KB Output is correct
3 Correct 40 ms 39768 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 39628 KB Output is correct
2 Correct 302 ms 40380 KB Output is correct
3 Correct 41 ms 39680 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 39628 KB Output is correct
2 Correct 40 ms 39496 KB Output is correct
3 Correct 46 ms 39548 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 306 ms 54712 KB Output is correct
2 Correct 974 ms 91564 KB Output is correct
3 Correct 418 ms 67104 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 43020 KB Output is correct
2 Correct 609 ms 91532 KB Output is correct
3 Correct 368 ms 66340 KB Output is correct

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 623 ms 91632 KB Output is correct
2 Correct 1265 ms 141000 KB Output is correct
3 Correct 362 ms 67184 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 222 ms 46816 KB Output is correct
2 Correct 1221 ms 140864 KB Output is correct
3 Correct 352 ms 66988 KB Output is correct

Subtask #8
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 265 ms 67120 KB Output is correct
2 Correct 4390 ms 436532 KB Output is correct
3 Correct 291 ms 67168 KB Output is correct

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 254 ms 67276 KB Output is correct
2 Execution timed out 5091 ms 436488 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #10
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 43152 KB Output is correct
2 Execution timed out 5045 ms 436380 KB Time limit exceeded
3 Halted 0 ms 0 KB -