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답안 #1111703

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1111703 2024-11-12T17:02:07 Z PagodePaiva Paths (BOI18_paths) C++17
100 / 100
 465 ms 122956 KB 
#include<bits/stdc++.h>
#define int long long

using namespace std;

const int N = 300010;
int n,m, k;
vector <int> g[N];
int cor[N];
int res = 0;
int dp[N][6];
int dp2[N][6][6];

void solve(int x){
    if(x == 2){
        int t = 0;
        for(int i = 1;i <= n;i++){
            for(auto x : g[i]){
                if(cor[x] != cor[i]) t++;
            }
        }
        res += t;
        return;
    }
    if(x == 3){
        for(int v = 1;v <= n;v++){
            int resp = 0;
            for(auto x : g[v]){
                if(cor[x] == cor[v]) continue;
                for(int j = 1;j <= k;j++){
                    if(j == cor[x] or j == cor[v]) continue;
                    resp += dp[v][j];
                }
            }
            res += resp;
        }
        return;
    }
    if(x == 4){
        for(int v = 1;v <= n;v++){
            int resp = 0;
            for(auto x : g[v]){
                if(cor[x] == cor[v]) continue;
                for(int j = 1;j <= k;j++){
                    if(cor[x] == j or cor[v] == j) continue;
                    for(int t = 1;t <= k;t++){
                        if(cor[x] == t or cor[v] == t or j == t) continue;
                        resp += dp[v][j]*dp[x][t];
                    }
                }
            }
            res += resp;
        }
    }
    if(x == 5){
        // << res << '\n';
        for(int v = 1;v <= n;v++){
            for(int j = 1;j <= k;j++){
                if(j == cor[v]) continue;
                for(int t = 1;t <= k;t++){
                    if(j == t or t == cor[v])continue;
                    set <int> s;
                    s.insert(1);
                    s.insert(2);
                    s.insert(3);
                    s.insert(4);
                    s.insert(5);
                    s.erase(j);
                    s.erase(t);
                    s.erase(cor[v]);
                    auto it = s.begin();
                    int c1 = *it;
                    it++;
                    int c2 = *it;
                    res += dp2[v][j][t]*(dp2[v][c1][c2] + dp2[v][c2][c1]);
                }
            }
           // cout << res << '\n';
        }
    }
}
int32_t main(){
    cin >> n >> m >> k;
    for(int i = 1;i <= n;i++){
        cin >> cor[i];
    }
    for(int i = 0;i < m;i++){
        int a, b;
        cin >> a >> b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    for(int i = 1;i <= n;i++){
        int v = i;
        for(auto x : g[v]){
            dp[v][cor[x]]++;
        }
    }
    for(int i = 1;i <= n;i++){
        int v = i;
        for(auto x : g[v]){
            int c1 = cor[x];
            if(cor[x] == cor[v]) continue;
            for(int j = 1;j <= k;j++){
                if(j == cor[v] or j == c1) continue;
                dp2[v][c1][j] += dp[x][j];
            }
        }
    }
    for(int i = 2;i <= k;i++){
        solve(i);
        //cout << "resposta de i:" << res << '\n';
    }
    cout << res << '\n';
}

Subtask #1
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7504 KB Output is correct
2 Correct 5 ms 7504 KB Output is correct
3 Correct 7 ms 7672 KB Output is correct
4 Correct 5 ms 7504 KB Output is correct
5 Correct 5 ms 7504 KB Output is correct
6 Correct 6 ms 7516 KB Output is correct
7 Correct 5 ms 7504 KB Output is correct
8 Correct 5 ms 7504 KB Output is correct
9 Correct 5 ms 7268 KB Output is correct
10 Correct 5 ms 7504 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 118 ms 16724 KB Output is correct
2 Correct 96 ms 15796 KB Output is correct
3 Correct 344 ms 118856 KB Output is correct
4 Correct 142 ms 17568 KB Output is correct
5 Correct 150 ms 17156 KB Output is correct
6 Correct 272 ms 84152 KB Output is correct
7 Correct 380 ms 122956 KB Output is correct
8 Correct 357 ms 119368 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7504 KB Output is correct
2 Correct 5 ms 7504 KB Output is correct
3 Correct 7 ms 7672 KB Output is correct
4 Correct 5 ms 7504 KB Output is correct
5 Correct 5 ms 7504 KB Output is correct
6 Correct 6 ms 7516 KB Output is correct
7 Correct 5 ms 7504 KB Output is correct
8 Correct 5 ms 7504 KB Output is correct
9 Correct 5 ms 7268 KB Output is correct
10 Correct 5 ms 7504 KB Output is correct
11 Correct 118 ms 16724 KB Output is correct
12 Correct 96 ms 15796 KB Output is correct
13 Correct 344 ms 118856 KB Output is correct
14 Correct 142 ms 17568 KB Output is correct
15 Correct 150 ms 17156 KB Output is correct
16 Correct 272 ms 84152 KB Output is correct
17 Correct 380 ms 122956 KB Output is correct
18 Correct 357 ms 119368 KB Output is correct
19 Correct 116 ms 18608 KB Output is correct
20 Correct 96 ms 16144 KB Output is correct
21 Correct 356 ms 118856 KB Output is correct
22 Correct 142 ms 20040 KB Output is correct
23 Correct 123 ms 17164 KB Output is correct
24 Correct 274 ms 83640 KB Output is correct
25 Correct 381 ms 122576 KB Output is correct
26 Correct 367 ms 122444 KB Output is correct
27 Correct 121 ms 15764 KB Output is correct
28 Correct 140 ms 20052 KB Output is correct
29 Correct 465 ms 118856 KB Output is correct
30 Correct 283 ms 66488 KB Output is correct
31 Correct 293 ms 70076 KB Output is correct
32 Correct 418 ms 119116 KB Output is correct
33 Correct 6 ms 7504 KB Output is correct
34 Correct 6 ms 7504 KB Output is correct
35 Correct 8 ms 7672 KB Output is correct
36 Correct 6 ms 7672 KB Output is correct
37 Correct 6 ms 7276 KB Output is correct
38 Correct 6 ms 7672 KB Output is correct
39 Correct 6 ms 7504 KB Output is correct
40 Correct 6 ms 7380 KB Output is correct
41 Correct 6 ms 7504 KB Output is correct
42 Correct 6 ms 7504 KB Output is correct

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 7504 KB Output is correct
2 Correct 63 ms 9800 KB Output is correct
3 Correct 41 ms 9760 KB Output is correct
4 Correct 103 ms 44652 KB Output is correct
5 Correct 93 ms 44988 KB Output is correct
6 Correct 356 ms 44616 KB Output is correct
7 Correct 41 ms 10312 KB Output is correct
8 Correct 124 ms 44596 KB Output is correct
9 Correct 93 ms 44988 KB Output is correct
10 Correct 95 ms 44732 KB Output is correct
11 Correct 156 ms 26792 KB Output is correct
12 Correct 237 ms 35808 KB Output is correct
13 Correct 149 ms 26936 KB Output is correct
14 Correct 283 ms 44676 KB Output is correct
15 Correct 269 ms 44576 KB Output is correct
16 Correct 5 ms 7504 KB Output is correct
17 Correct 5 ms 7504 KB Output is correct
18 Correct 5 ms 7504 KB Output is correct
19 Correct 5 ms 7504 KB Output is correct
20 Correct 5 ms 7504 KB Output is correct
21 Correct 5 ms 7676 KB Output is correct
22 Correct 6 ms 7504 KB Output is correct
23 Correct 6 ms 7504 KB Output is correct
24 Correct 5 ms 7504 KB Output is correct
25 Correct 5 ms 7504 KB Output is correct