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답안 #561651

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
561651 2022-05-13T10:19:07 Z fcmalkcin Reconstruction Project (JOI22_reconstruction) C++17
42 / 100
 5000 ms 604720 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll  int
#define pll pair<ll,ll>
#define ff first
#define ss second
#define pb push_back
#define endl "\n"
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

const ll maxn=503;
const ll maxn1=1e5+10;
const ll mod=1e9+7  ;
const ll base=1e9;


/// i believe myself
/// goal 2/7

ll par[maxn];
ll find_par(ll u)
{
    if (par[u]<0)
        return u;
    return par[u]=find_par(par[u]);
}
bool dsu(ll x,ll y)
{
    x=find_par(x);
    y=find_par(y);
    if (x==y)
        return false;
    if (par[x]>par[y])
        swap(x,y);
    par[x]+=par[y];
    par[y]=x;
    return true;
}
vector<pair<ll,pll>> gr[maxn1];
vector<pll> adjq[maxn1];
long long res[maxn1*10];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    if (fopen("t.inp","r"))
    {
        freopen("test.inp","r",stdin);
        freopen("test.out","w",stdout);
    }
    ll n, m;
    cin>> n>> m;
    vector<pair<ll,pll>> vt;
    vector<ll> vt1;
    for (int i=1; i<=m; i++)
    {
        ll x, y, w;
        cin>> x>> y>> w;
        vt.pb(make_pair(w,make_pair(x,y)));
        vt1.pb(w);
    }
    sort(vt.begin(),vt.end());
    sort(vt1.begin(),vt1.end());
    vt1.pb(base);
    vt1.resize(unique(vt1.begin(),vt1.end())-vt1.begin());
    ll q;
    cin>> q;
    for (int i=1; i<=q; i++)
    {
        ll x;
        cin>> x;
        auto p=lower_bound(vt1.begin(),vt1.end(),x)-vt1.begin();
        adjq[p].pb(make_pair(x,i));
    }
    vector<pair<ll,pll>> vt2;
    vector<pair<ll,pll>> vtp;
    ll id=0;
    for (int i=0; i<vt1.size(); i++)
    {
        memset(par,-1,sizeof(par));
        vtp.clear();
        while (id<vt.size()&&vt[id].ff==vt1[i])
        {
            auto p=vt[id].ss;
            if (dsu(p.ff,p.ss))
            {
                vtp.pb(vt[id]);
            }
            id++;
        }
        for (auto to:vt2)
        {
            if (dsu(to.ss.ff,to.ss.ss))
                vtp.pb(to);
        }
        gr[i]=vtp;
        swap(vtp,vt2);
    }
    vt2.clear();
    id=vt.size()-1;
    for (int i=vt1.size()-1; i>=0; i--)
    {
        memset(par,-1,sizeof(par));
        vtp.clear();
        while (id>=0&&vt[id].ff==vt1[i])
        {
            auto p=vt[id].ss;
            if (dsu(p.ff,p.ss))
            {
                vtp.pb(vt[id]);
            }
            id--;
        }
        for (auto to:vt2)
        {
            if (dsu(to.ss.ff,to.ss.ss))
                vtp.pb(to);
        }
        for (auto p:adjq[i])
        {
            memset(par,-1,sizeof(par));
            ll idr=0;
            ll idl=0;
            ll cnt=0;
            ll x=p.ff;
            ll id=p.ss;
            long long ans=0;
            while (cnt!=n-1)
            {
                ll val=base+3;
                if (idr<vtp.size()) val=vtp[idr].ff-x;
                ll val1=base+3;
                if (i&&idl<gr[i-1].size()) val1=x-gr[i-1][idl].ff;
                if (val<val1)
                {
                    ll h=dsu(vtp[idr].ss.ff,vtp[idr].ss.ss);
                    cnt+=h;
                    ans+=(h*val);
                    idr++;
                }
                else
                {
                    ll h=dsu(gr[i-1][idl].ss.ff,gr[i-1][idl].ss.ss);
                    cnt+=h;
                    ans+=(h*val1);
                    idl++;
                }
            }
            res[id]=ans;
        }
        swap(vtp,vt2);
    }
    for (int i=1;i<=q;i++) cout <<res[i]<<endl;
}

Compilation message

reconstruction.cpp: In function 'int main()':
reconstruction.cpp:81:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |     for (int i=0; i<vt1.size(); i++)
      |                   ~^~~~~~~~~~~
reconstruction.cpp:85:18: 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]
   85 |         while (id<vt.size()&&vt[id].ff==vt1[i])
      |                ~~^~~~~~~~~~
reconstruction.cpp:134:24: 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]
  134 |                 if (idr<vtp.size()) val=vtp[idr].ff-x;
      |                     ~~~^~~~~~~~~~~
reconstruction.cpp:136:27: 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]
  136 |                 if (i&&idl<gr[i-1].size()) val1=x-gr[i-1][idl].ff;
      |                        ~~~^~~~~~~~~~~~~~~
reconstruction.cpp:51:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |         freopen("test.inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
reconstruction.cpp:52:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |         freopen("test.out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4932 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5040 KB Output is correct
6 Correct 3 ms 5032 KB Output is correct
7 Correct 4 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4960 KB Output is correct
11 Correct 4 ms 4968 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 4 ms 5028 KB Output is correct
18 Correct 3 ms 5032 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4932 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5040 KB Output is correct
6 Correct 3 ms 5032 KB Output is correct
7 Correct 4 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4960 KB Output is correct
11 Correct 4 ms 4968 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 4 ms 5028 KB Output is correct
18 Correct 3 ms 5032 KB Output is correct
19 Correct 3 ms 5040 KB Output is correct
20 Correct 1811 ms 593524 KB Output is correct
21 Correct 1472 ms 560128 KB Output is correct
22 Correct 1593 ms 584040 KB Output is correct
23 Correct 1615 ms 590316 KB Output is correct
24 Correct 1637 ms 591468 KB Output is correct
25 Correct 1696 ms 591724 KB Output is correct
26 Correct 1750 ms 593520 KB Output is correct
27 Correct 1633 ms 565372 KB Output is correct
28 Correct 70 ms 14028 KB Output is correct
29 Correct 46 ms 8792 KB Output is correct
30 Correct 1725 ms 593560 KB Output is correct
31 Correct 1694 ms 593472 KB Output is correct
32 Correct 1716 ms 593532 KB Output is correct
33 Correct 1712 ms 593436 KB Output is correct
34 Correct 44 ms 8832 KB Output is correct
35 Correct 1714 ms 593480 KB Output is correct

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Execution timed out 5106 ms 604720 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4932 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5040 KB Output is correct
6 Correct 3 ms 5032 KB Output is correct
7 Correct 4 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4960 KB Output is correct
11 Correct 4 ms 4968 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 4 ms 5028 KB Output is correct
18 Correct 3 ms 5032 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Execution timed out 5090 ms 24028 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4932 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5040 KB Output is correct
6 Correct 3 ms 5032 KB Output is correct
7 Correct 4 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4960 KB Output is correct
11 Correct 4 ms 4968 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 4 ms 5028 KB Output is correct
18 Correct 3 ms 5032 KB Output is correct
19 Correct 3 ms 5040 KB Output is correct
20 Correct 1811 ms 593524 KB Output is correct
21 Correct 1472 ms 560128 KB Output is correct
22 Correct 1593 ms 584040 KB Output is correct
23 Correct 1615 ms 590316 KB Output is correct
24 Correct 1637 ms 591468 KB Output is correct
25 Correct 1696 ms 591724 KB Output is correct
26 Correct 1750 ms 593520 KB Output is correct
27 Correct 1633 ms 565372 KB Output is correct
28 Correct 70 ms 14028 KB Output is correct
29 Correct 46 ms 8792 KB Output is correct
30 Correct 1725 ms 593560 KB Output is correct
31 Correct 1694 ms 593472 KB Output is correct
32 Correct 1716 ms 593532 KB Output is correct
33 Correct 1712 ms 593436 KB Output is correct
34 Correct 44 ms 8832 KB Output is correct
35 Correct 1714 ms 593480 KB Output is correct
36 Correct 2108 ms 594700 KB Output is correct
37 Correct 1809 ms 560388 KB Output is correct
38 Correct 1911 ms 587456 KB Output is correct
39 Correct 1999 ms 593292 KB Output is correct
40 Correct 2090 ms 593872 KB Output is correct
41 Correct 2091 ms 594640 KB Output is correct
42 Correct 2106 ms 594388 KB Output is correct
43 Correct 2020 ms 566500 KB Output is correct
44 Correct 346 ms 14904 KB Output is correct
45 Correct 152 ms 9280 KB Output is correct
46 Correct 2113 ms 594856 KB Output is correct
47 Correct 2096 ms 594636 KB Output is correct
48 Correct 2094 ms 594640 KB Output is correct
49 Correct 2206 ms 594580 KB Output is correct
50 Correct 145 ms 9180 KB Output is correct
51 Correct 1906 ms 594176 KB Output is correct

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4932 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5040 KB Output is correct
6 Correct 3 ms 5032 KB Output is correct
7 Correct 4 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4960 KB Output is correct
11 Correct 4 ms 4968 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 4 ms 5028 KB Output is correct
18 Correct 3 ms 5032 KB Output is correct
19 Correct 3 ms 5040 KB Output is correct
20 Correct 1811 ms 593524 KB Output is correct
21 Correct 1472 ms 560128 KB Output is correct
22 Correct 1593 ms 584040 KB Output is correct
23 Correct 1615 ms 590316 KB Output is correct
24 Correct 1637 ms 591468 KB Output is correct
25 Correct 1696 ms 591724 KB Output is correct
26 Correct 1750 ms 593520 KB Output is correct
27 Correct 1633 ms 565372 KB Output is correct
28 Correct 70 ms 14028 KB Output is correct
29 Correct 46 ms 8792 KB Output is correct
30 Correct 1725 ms 593560 KB Output is correct
31 Correct 1694 ms 593472 KB Output is correct
32 Correct 1716 ms 593532 KB Output is correct
33 Correct 1712 ms 593436 KB Output is correct
34 Correct 44 ms 8832 KB Output is correct
35 Correct 1714 ms 593480 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 3 ms 4948 KB Output is correct
38 Correct 2 ms 4948 KB Output is correct
39 Execution timed out 5106 ms 604720 KB Time limit exceeded
40 Halted 0 ms 0 KB -