oj.uz

답안 #882272

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
882272 2023-12-02T21:24:50 Z asdasdqwer 어르신 집배원 (BOI14_postmen) C++14
100 / 100
 499 ms 71384 KB 
#include <bits/stdc++.h>
using namespace std;

signed main() {
    int n, m;cin>>n>>m;
    typedef pair<int,int> pii;
    vector<vector<pii>> g(n);
    for (int i=0;i<m;i++) {
        int a,b;cin>>a>>b;a--;b--;
        g[a].push_back({b,i});
        g[b].push_back({a,i});
    }

    vector<int> tour;
    vector<bool> vis(m,false);

    function<void(int)> dfs=[&](int node) {
        while (g[node].size()) {
            auto [ne,idx]=g[node].back();g[node].pop_back();
            if (vis[idx])continue;
            vis[idx]=true;
            dfs(ne);
        }

        tour.push_back(node);
    };

    dfs(0);

    vector<vector<int>> res;
    vector<int> cnt(n, 0);
    stack<int> ss;

    int c=0;
    for (int x:tour) {
        if (cnt[x] != 0) {
            res.push_back({});
            while (ss.top() != x) {
                cnt[ss.top()]--;
                res[res.size()-1].push_back(ss.top());
                ss.pop();
            }
            res[res.size()-1].push_back(x);
        }

        else {
            cnt[x]++;
            ss.push(x);
        }
    }

    if (ss.size() > 1) {
        res.push_back({});
        while (ss.size() > 1) {
            res[res.size()-1].push_back(ss.top());
            ss.pop();
        }
    }

    for (auto x:res) {
        for (int y:x) {
            cout << y+1 << " ";
        }
        cout << "\n";
    }
}

Compilation message

postmen.cpp: In lambda function:
postmen.cpp:19:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   19 |             auto [ne,idx]=g[node].back();g[node].pop_back();
      |                  ^
postmen.cpp: In function 'int main()':
postmen.cpp:34:9: warning: unused variable 'c' [-Wunused-variable]
   34 |     int c=0;
      |         ^

Subtask #1
38.0 / 38.0

# 결과 실행 시간 메모리 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 2 ms 604 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 860 KB Output is correct
7 Correct 7 ms 1860 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 44 ms 9164 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 2 ms 604 KB Output is correct
12 Correct 48 ms 9928 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 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 2 ms 604 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 860 KB Output is correct
7 Correct 7 ms 2392 KB Output is correct
8 Correct 2 ms 604 KB Output is correct
9 Correct 43 ms 9188 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 2 ms 600 KB Output is correct
12 Correct 49 ms 9604 KB Output is correct
13 Correct 65 ms 14420 KB Output is correct
14 Correct 67 ms 11088 KB Output is correct
15 Correct 59 ms 13348 KB Output is correct
16 Correct 64 ms 14424 KB Output is correct
17 Correct 65 ms 9288 KB Output is correct
18 Correct 70 ms 12488 KB Output is correct

Subtask #3
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 3 ms 600 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 860 KB Output is correct
7 Correct 7 ms 1884 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 47 ms 9092 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 2 ms 604 KB Output is correct
12 Correct 53 ms 9540 KB Output is correct
13 Correct 73 ms 14332 KB Output is correct
14 Correct 64 ms 10924 KB Output is correct
15 Correct 60 ms 13252 KB Output is correct
16 Correct 75 ms 14424 KB Output is correct
17 Correct 64 ms 9284 KB Output is correct
18 Correct 73 ms 12548 KB Output is correct
19 Correct 470 ms 71228 KB Output is correct
20 Correct 448 ms 55004 KB Output is correct
21 Correct 397 ms 65204 KB Output is correct
22 Correct 499 ms 71384 KB Output is correct
23 Correct 228 ms 42944 KB Output is correct
24 Correct 462 ms 46488 KB Output is correct
25 Correct 461 ms 62236 KB Output is correct