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답안 #637909

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
637909 2022-09-03T14:35:07 Z Cross_Ratio Reconstruction Project (JOI22_reconstruction) C++14
7 / 100
 5000 ms 9488 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e18;
ll A[2005];
ll B[2005];
ll C[2005]; // C[i] <= x < C[i+1], ans = x * A[i] + B[i];
typedef pair<ll, ll> P;
ll dis[505][505];
ll dis2[505][505];
struct UnionFind {
    vector<int> root;
    UnionFind(int n) {
        root.resize(n);
        fill(root.begin(),root.end(),-1);
    }
    int Find(int n) {
        if(root[n]<0) return n;
        int r = Find(root[n]);
        root[n] = r;
        return r;
    }
    void Merge(int x, int y) {
        x = Find(x), y = Find(y);
        if(x==y) return;
        if(root[x]>root[y]) swap(x, y);
        root[x] += root[y];
        root[y] = x;
    }
};
vector<array<ll, 4>> Tree[2005];
vector<set<array<ll, 4>>> adj;
array<ll, 4> Edge[100005];
bool S[100005];
void dfs(int c, int p, int rt) {
    for(auto n2 : adj[c]) {
        if(n2[0]==p) continue;
        dis[rt][n2[0]] = dis[rt][c];
        dis2[rt][n2[0]] = dis2[rt][c];
        if(dis[rt][n2[0]] > n2[1]) {
            dis[rt][n2[0]] = n2[1];
            dis2[rt][n2[0]] = n2[2];
        }
        dfs(n2[0], c, rt);
    }
}
signed main() {
    cin.sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int N, M;
    cin >> N >> M;
    clock_t st = clock();
    adj.resize(N);
    int i, j;
    for(i=0;i<M;i++) {
        int a, b, c;
        cin >> a>>b>>c;
        //a = rand() % N + 1;
        //b = rand() % N+ 1;
        //c = rand();
        Edge[i] = {c, a-1, b-1, i};
    }
    sort(Edge, Edge+M);
    int Q;
    cin >> Q;
    while(Q--) {
        ll x;
        ll ans = 0;
        cin >> x;
        vector<array<int, 4>> Edge2;
        for(i=0;i<M;i++) Edge2.push_back({abs(Edge[i][0]-x), Edge[i][1], Edge[i][2], Edge[i][3]});
        sort(Edge2.begin(), Edge2.end());
        UnionFind UF(N);
        for(i=0;i<M;i++) {
            if(UF.Find(Edge2[i][1])==UF.Find(Edge2[i][2])) continue;
            UF.Merge(Edge2[i][1], Edge2[i][2]);
            ans += Edge2[i][0];
        }
        cout << ans << '\n';
    }
}

Compilation message

reconstruction.cpp: In function 'int main()':
reconstruction.cpp:72:46: warning: narrowing conversion of 'std::abs((Edge[i].std::array<long long int, 4>::operator[](0) - x))' from 'long long int' to 'int' [-Wnarrowing]
   72 |         for(i=0;i<M;i++) Edge2.push_back({abs(Edge[i][0]-x), Edge[i][1], Edge[i][2], Edge[i][3]});
      |                                           ~~~^~~~~~~~~~~~~~
reconstruction.cpp:72:97: warning: narrowing conversion of 'Edge[i].std::array<long long int, 4>::operator[](1)' from 'std::array<long long int, 4>::value_type' {aka 'long long int'} to 'int' [-Wnarrowing]
   72 |         for(i=0;i<M;i++) Edge2.push_back({abs(Edge[i][0]-x), Edge[i][1], Edge[i][2], Edge[i][3]});
      |                                                                                                 ^
reconstruction.cpp:72:97: warning: narrowing conversion of 'Edge[i].std::array<long long int, 4>::operator[](2)' from 'std::array<long long int, 4>::value_type' {aka 'long long int'} to 'int' [-Wnarrowing]
reconstruction.cpp:72:97: warning: narrowing conversion of 'Edge[i].std::array<long long int, 4>::operator[](3)' from 'std::array<long long int, 4>::value_type' {aka 'long long int'} to 'int' [-Wnarrowing]
reconstruction.cpp:53:13: warning: unused variable 'st' [-Wunused-variable]
   53 |     clock_t st = clock();
      |             ^~
reconstruction.cpp:55:12: warning: unused variable 'j' [-Wunused-variable]
   55 |     int i, j;
      |            ^

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 110 ms 7148 KB Output is correct
21 Correct 109 ms 8916 KB Output is correct
22 Correct 122 ms 8872 KB Output is correct
23 Correct 108 ms 8876 KB Output is correct
24 Correct 108 ms 8872 KB Output is correct
25 Correct 113 ms 8884 KB Output is correct
26 Correct 122 ms 8864 KB Output is correct
27 Correct 116 ms 8880 KB Output is correct
28 Correct 132 ms 8868 KB Output is correct
29 Correct 138 ms 8876 KB Output is correct
30 Correct 111 ms 8868 KB Output is correct
31 Correct 136 ms 8880 KB Output is correct
32 Correct 117 ms 8864 KB Output is correct
33 Correct 126 ms 8876 KB Output is correct
34 Correct 126 ms 8988 KB Output is correct
35 Correct 160 ms 8876 KB Output is correct

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Execution timed out 5058 ms 7516 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Execution timed out 5044 ms 2668 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 110 ms 7148 KB Output is correct
21 Correct 109 ms 8916 KB Output is correct
22 Correct 122 ms 8872 KB Output is correct
23 Correct 108 ms 8876 KB Output is correct
24 Correct 108 ms 8872 KB Output is correct
25 Correct 113 ms 8884 KB Output is correct
26 Correct 122 ms 8864 KB Output is correct
27 Correct 116 ms 8880 KB Output is correct
28 Correct 132 ms 8868 KB Output is correct
29 Correct 138 ms 8876 KB Output is correct
30 Correct 111 ms 8868 KB Output is correct
31 Correct 136 ms 8880 KB Output is correct
32 Correct 117 ms 8864 KB Output is correct
33 Correct 126 ms 8876 KB Output is correct
34 Correct 126 ms 8988 KB Output is correct
35 Correct 160 ms 8876 KB Output is correct
36 Execution timed out 5052 ms 9488 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 110 ms 7148 KB Output is correct
21 Correct 109 ms 8916 KB Output is correct
22 Correct 122 ms 8872 KB Output is correct
23 Correct 108 ms 8876 KB Output is correct
24 Correct 108 ms 8872 KB Output is correct
25 Correct 113 ms 8884 KB Output is correct
26 Correct 122 ms 8864 KB Output is correct
27 Correct 116 ms 8880 KB Output is correct
28 Correct 132 ms 8868 KB Output is correct
29 Correct 138 ms 8876 KB Output is correct
30 Correct 111 ms 8868 KB Output is correct
31 Correct 136 ms 8880 KB Output is correct
32 Correct 117 ms 8864 KB Output is correct
33 Correct 126 ms 8876 KB Output is correct
34 Correct 126 ms 8988 KB Output is correct
35 Correct 160 ms 8876 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Execution timed out 5058 ms 7516 KB Time limit exceeded
40 Halted 0 ms 0 KB -