oj.uz

Submission #260023

# Submission time Handle Problem Language Result Execution time Memory
260023 2020-08-09T01:36:08 Z anonymous Senior Postmen (BOI14_postmen) C++14
55 / 100
 500 ms 61412 KB 
#include <iostream>
#include <vector>
#include <utility>
#define MAXN 500005
using namespace std;
int N, M, del[MAXN], inStack[MAXN];
vector <pair<int,int> > adj[MAXN];
vector <int> S,S2;

void dfs(int u) { //Hierholzer
    while (adj[u].size()) {
        int v = adj[u].back().first, id = adj[u].back().second;
        adj[u].pop_back();
        if (!del[id]) {
            del[id] = true;
            dfs(v);
        }
    }
    S.push_back(u);
}

int main() {
    //freopen("seniorin.txt","r",stdin);
    scanf("%d %d",&N,&M);
    for (int i=1; i<=M; i++) {
        int u,v;
        scanf("%d %d",&u,&v);
        adj[u].push_back({v,i});
        adj[v].push_back({u,i});
    }
    dfs(1);
    for (int i=0; i<S.size(); i++) {
        if (inStack[S[i]]) {
            while (S2.size() && S2.back() != S[i]) {
                printf("%d ",S2.back());
                inStack[S2.back()]--;
                S2.pop_back();
            }
            printf("%d\n",S[i]);
        } else {
            inStack[S[i]]++;
            S2.push_back(S[i]);
        }
    }
}

Compilation message

postmen.cpp: In function 'int main()':
postmen.cpp:32:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=0; i<S.size(); i++) {
                   ~^~~~~~~~~
postmen.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&N,&M);
     ~~~~~^~~~~~~~~~~~~~~
postmen.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d",&u,&v);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct
3 Correct 8 ms 12032 KB Output is correct
4 Correct 11 ms 12288 KB Output is correct
5 Correct 9 ms 12160 KB Output is correct
6 Correct 10 ms 12416 KB Output is correct
7 Correct 15 ms 13312 KB Output is correct
8 Correct 10 ms 12288 KB Output is correct
9 Correct 54 ms 19196 KB Output is correct
10 Correct 10 ms 12288 KB Output is correct
11 Correct 11 ms 12288 KB Output is correct
12 Correct 59 ms 19700 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct
3 Correct 8 ms 12032 KB Output is correct
4 Correct 10 ms 12288 KB Output is correct
5 Correct 9 ms 12160 KB Output is correct
6 Correct 10 ms 12416 KB Output is correct
7 Correct 15 ms 13312 KB Output is correct
8 Correct 9 ms 12288 KB Output is correct
9 Correct 58 ms 19196 KB Output is correct
10 Correct 10 ms 12288 KB Output is correct
11 Correct 10 ms 12288 KB Output is correct
12 Correct 58 ms 19700 KB Output is correct
13 Correct 80 ms 21748 KB Output is correct
14 Correct 95 ms 19700 KB Output is correct
15 Correct 72 ms 20716 KB Output is correct
16 Correct 88 ms 21748 KB Output is correct
17 Correct 89 ms 17908 KB Output is correct
18 Correct 87 ms 20340 KB Output is correct

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct
3 Correct 9 ms 12032 KB Output is correct
4 Correct 10 ms 12288 KB Output is correct
5 Correct 9 ms 12160 KB Output is correct
6 Correct 10 ms 12416 KB Output is correct
7 Correct 15 ms 13312 KB Output is correct
8 Correct 9 ms 12288 KB Output is correct
9 Correct 52 ms 19196 KB Output is correct
10 Correct 10 ms 12288 KB Output is correct
11 Correct 10 ms 12288 KB Output is correct
12 Correct 58 ms 19700 KB Output is correct
13 Correct 78 ms 21748 KB Output is correct
14 Correct 78 ms 19832 KB Output is correct
15 Correct 72 ms 20844 KB Output is correct
16 Correct 85 ms 21876 KB Output is correct
17 Correct 81 ms 17908 KB Output is correct
18 Correct 74 ms 20340 KB Output is correct
19 Execution timed out 525 ms 61412 KB Time limit exceeded
20 Halted 0 ms 0 KB -