oj.uz

Submission #52984

# Submission time Handle Problem Language Result Execution time Memory
52984 2018-06-27T12:54:43 Z Bruteforceman Senior Postmen (BOI14_postmen) C++11
55 / 100
 500 ms 55776 KB 
#include <bits/stdc++.h>
using namespace std;
#define prev dfsdf
vector <int> g[500010];
int l[500010], r[500010];
bool del[500010];
vector <int> tour;

void dfs(int x) {
	while (!g[x].empty()){
		int i = g[x].back();
		g[x].pop_back();
		if(del[i]) continue;
		del[i] = true;
		int y = l[i] ^ r[i] ^ x;
		dfs(y);
	}
	tour.push_back(x);
}
bool occ[500010];

int main (int argc, char const* argv[])
{
	int n, m;
	scanf("%d %d", &n, &m);
	for(int i = 0; i < m; i++) {
		int p, q;
		scanf("%d %d", &p, &q);
		l[i] = p;
		r[i] = q;
		g[p].push_back(i);
		g[q].push_back(i);
	}
	dfs(1);
	vector <int> cycle;
	for(int i = 0; i < tour.size(); i++) {
		int x = tour[i];
		if(occ[x] == false) {
			cycle.push_back(x);
			occ[x] = true;
		} else {
			while(cycle.back() != x) {
				int node = cycle.back();
				printf("%d ", node);
				occ[node] = false;
				cycle.pop_back();
			}
			printf("%d\n", x);
		}
	}
	return 0;
}
// 1 5 8 7 5 4 7 6 3 4 8 10 9 2 3 1

Compilation message

postmen.cpp: In function 'int main(int, const char**)':
postmen.cpp:36:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < tour.size(); i++) {
                 ~~^~~~~~~~~~~~~
postmen.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~
postmen.cpp:28:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &p, &q);
   ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12160 KB Output is correct
2 Correct 12 ms 12032 KB Output is correct
3 Correct 12 ms 12032 KB Output is correct
4 Correct 19 ms 12288 KB Output is correct
5 Correct 27 ms 12160 KB Output is correct
6 Correct 13 ms 12416 KB Output is correct
7 Correct 21 ms 13032 KB Output is correct
8 Correct 13 ms 12288 KB Output is correct
9 Correct 59 ms 18008 KB Output is correct
10 Correct 15 ms 12288 KB Output is correct
11 Correct 14 ms 12308 KB Output is correct
12 Correct 64 ms 18396 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 12160 KB Output is correct
2 Correct 12 ms 12160 KB Output is correct
3 Correct 13 ms 12160 KB Output is correct
4 Correct 14 ms 12288 KB Output is correct
5 Correct 12 ms 12160 KB Output is correct
6 Correct 13 ms 12416 KB Output is correct
7 Correct 17 ms 13160 KB Output is correct
8 Correct 13 ms 12288 KB Output is correct
9 Correct 53 ms 17904 KB Output is correct
10 Correct 14 ms 12288 KB Output is correct
11 Correct 14 ms 12288 KB Output is correct
12 Correct 63 ms 18312 KB Output is correct
13 Correct 102 ms 20812 KB Output is correct
14 Correct 111 ms 18408 KB Output is correct
15 Correct 89 ms 19544 KB Output is correct
16 Correct 104 ms 20852 KB Output is correct
17 Correct 106 ms 16728 KB Output is correct
18 Correct 104 ms 18932 KB Output is correct

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 12032 KB Output is correct
2 Correct 11 ms 12160 KB Output is correct
3 Correct 16 ms 12032 KB Output is correct
4 Correct 17 ms 12336 KB Output is correct
5 Correct 18 ms 12156 KB Output is correct
6 Correct 22 ms 12416 KB Output is correct
7 Correct 18 ms 13056 KB Output is correct
8 Correct 17 ms 12264 KB Output is correct
9 Correct 66 ms 17976 KB Output is correct
10 Correct 14 ms 12288 KB Output is correct
11 Correct 13 ms 12288 KB Output is correct
12 Correct 70 ms 18164 KB Output is correct
13 Correct 121 ms 20872 KB Output is correct
14 Correct 110 ms 18420 KB Output is correct
15 Correct 101 ms 19440 KB Output is correct
16 Correct 113 ms 20852 KB Output is correct
17 Correct 118 ms 16752 KB Output is correct
18 Correct 116 ms 18932 KB Output is correct
19 Execution timed out 651 ms 55776 KB Time limit exceeded
20 Halted 0 ms 0 KB -