oj.uz

Submission #1061260

# Submission time Handle Problem Language Result Execution time Memory
1061260 2024-08-16T07:34:43 Z 12345678 Reconstruction Project (JOI22_reconstruction) C++17
31 / 100
 4352 ms 13140 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define int long long
#pragma gcc-optimize("o3, unroll-loops")

const int nx=5e2+5, mx=1e3+5;

ll n, m, a[mx], b[mx], w[mx], x, q, L[nx], R[nx], dsu[nx];
vector<ll> dp[nx];
priority_queue<pair<ll, ll>, vector<pair<ll, ll>>, greater<pair<ll, ll>>> add, rem;

int find(int x)
{
    if (dsu[x]==x) return x;
    return dsu[x]=find(dsu[x]);
}

bool isused(ll idx, ll cw)
{
    for (int i=1; i<=n; i++) dsu[i]=i;
    vector<pair<ll, ll>> v;
    for (int i=1; i<=m; i++) v.push_back({abs(w[i]-cw), i});
    sort(v.begin(), v.end());
    for (auto [_, i]:v)
    {
        if (find(a[i])==find(b[i])) 
        {
            continue;
        }
        dsu[find(a[i])]=find(b[i]);
        if (i==idx) return 1;
    }
    return 0;
}

int32_t main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n>>m;
    for (int i=1; i<=m; i++) cin>>a[i]>>b[i]>>w[i];
    for (int i=1; i<=m; i++)
    {
        if (!isused(i, w[i])) continue;
        ll l=1, r=w[i];
        while (l<r)
        {
            ll md=(l+r)/2;
            if (isused(i, md)) r=md;
            else l=md+1;
        }
        add.push({l, i});
        l=w[i], r=2e9;
        while (l<r)
        {
            ll md=(l+r+1)/2;
            if (isused(i, md)) l=md;
            else r=md-1;
        }
        rem.push({l, i});
    }
    cin>>q;
    set<ll> edg;
    while (q--)
    {
        cin>>x;
        while (!add.empty()&&add.top().first<=x) edg.insert(add.top().second), add.pop();
        while (!rem.empty()&&rem.top().first<x) edg.erase(rem.top().second), rem.pop();
        ll res=0;
        for (auto tmp:edg) res+=abs(w[tmp]-x); //cout<<tmp<<' '<<a[tmp]<<' '<<b[tmp]<<' '<<w[tmp]<<'\n';
        cout<<res<<'\n'; 
        
    }
}

Compilation message

reconstruction.cpp:7: warning: ignoring '#pragma gcc ' [-Wunknown-pragmas]
    7 | #pragma gcc-optimize("o3, unroll-loops")
      |

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Incorrect 7 ms 348 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 149 ms 496 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 3868 ms 12816 KB Output is correct
21 Correct 3967 ms 12780 KB Output is correct
22 Correct 3992 ms 12804 KB Output is correct
23 Correct 3926 ms 12624 KB Output is correct
24 Correct 3894 ms 12624 KB Output is correct
25 Correct 4097 ms 12628 KB Output is correct
26 Correct 4130 ms 12740 KB Output is correct
27 Correct 4352 ms 12628 KB Output is correct
28 Correct 3993 ms 12584 KB Output is correct
29 Correct 4016 ms 12584 KB Output is correct
30 Correct 4306 ms 12836 KB Output is correct
31 Correct 4143 ms 12648 KB Output is correct
32 Correct 2846 ms 13140 KB Output is correct
33 Correct 4199 ms 12480 KB Output is correct

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Incorrect 7 ms 348 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Incorrect 7 ms 348 KB Output isn't correct
21 Halted 0 ms 0 KB -