oj.uz

Submission #103589

# Submission time Handle Problem Language Result Execution time Memory
103589 2019-03-31T19:13:18 Z luciocf Senior Postmen (BOI14_postmen) C++17
38 / 100
 500 ms 22772 KB 
#include <bits/stdc++.h>
#define gc getchar

using namespace std;

const int maxn = 5e5+10;

typedef pair<int, int> pii;

bool markEdge[maxn], mark[maxn];

vector<pii> grafo[maxn];

vector<int> stk;

void dfs(int u)
{
	if (mark[u])
	{
		while (true)
		{
			int v = stk.back();
			stk.pop_back();

			mark[v] = 0;

			if (v == u)
			{
				printf("%d\n", v);
				break;
			}

			printf("%d ", v);
		}
	}

	for (auto v: grafo[u])
	{
		if (!markEdge[v.second])
		{
			mark[u] = 1;
			stk.push_back(u);
			markEdge[v.second] = 1;

			dfs(v.first);
		}
	}
}

inline int scan(void)
{
	int n = 0, x = gc(), s =1;

	for (;x<'0'||x>'9';x=gc()) if(x=='-') s=-1;
	for (;x>='0'&&x<='9';x=gc()) n = (n<<3) + (n<<1) + x-'0';
	return n;
}

int main(void)
{
	int n, m;
	n = scan(), m = scan();

	for (int i = 1; i <= m; i++)
	{
		int u, v;
		u = scan(), v = scan();

		grafo[u].push_back({v, i});
		grafo[v].push_back({u, i});
	}

	dfs(1);
}

Compilation message

postmen.cpp: In function 'int scan()':
postmen.cpp:52:23: warning: variable 's' set but not used [-Wunused-but-set-variable]
  int n = 0, x = gc(), s =1;
                       ^
postmen.cpp: In function 'int main()':
postmen.cpp:61:6: warning: variable 'n' set but not used [-Wunused-but-set-variable]
  int n, m;
      ^

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 12032 KB Output is correct
2 Correct 12 ms 12032 KB Output is correct
3 Correct 11 ms 12032 KB Output is correct
4 Correct 14 ms 12292 KB Output is correct
5 Correct 15 ms 12148 KB Output is correct
6 Correct 14 ms 12544 KB Output is correct
7 Correct 18 ms 13568 KB Output is correct
8 Correct 13 ms 12288 KB Output is correct
9 Correct 89 ms 20728 KB Output is correct
10 Correct 13 ms 12160 KB Output is correct
11 Correct 13 ms 12340 KB Output is correct
12 Correct 54 ms 21192 KB Output is correct

Subtask #2
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 12032 KB Output is correct
2 Correct 11 ms 12032 KB Output is correct
3 Correct 13 ms 12032 KB Output is correct
4 Correct 14 ms 12288 KB Output is correct
5 Correct 15 ms 12160 KB Output is correct
6 Correct 16 ms 12416 KB Output is correct
7 Correct 17 ms 13568 KB Output is correct
8 Correct 12 ms 12288 KB Output is correct
9 Correct 105 ms 20720 KB Output is correct
10 Correct 16 ms 12288 KB Output is correct
11 Correct 14 ms 12288 KB Output is correct
12 Correct 57 ms 21112 KB Output is correct
13 Correct 67 ms 22772 KB Output is correct
14 Correct 84 ms 18808 KB Output is correct
15 Execution timed out 1067 ms 21648 KB Time limit exceeded
16 Halted 0 ms 0 KB -

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 12032 KB Output is correct
2 Correct 14 ms 12032 KB Output is correct
3 Correct 12 ms 12032 KB Output is correct
4 Correct 14 ms 12416 KB Output is correct
5 Correct 15 ms 12160 KB Output is correct
6 Correct 17 ms 12544 KB Output is correct
7 Correct 18 ms 13568 KB Output is correct
8 Correct 14 ms 12336 KB Output is correct
9 Correct 101 ms 20824 KB Output is correct
10 Correct 13 ms 12288 KB Output is correct
11 Correct 12 ms 12288 KB Output is correct
12 Correct 56 ms 21112 KB Output is correct
13 Correct 80 ms 22760 KB Output is correct
14 Correct 78 ms 18824 KB Output is correct
15 Execution timed out 1073 ms 21560 KB Time limit exceeded
16 Halted 0 ms 0 KB -