oj.uz

Submission #231032

# Submission time Handle Problem Language Result Execution time Memory
231032 2020-05-12T11:57:59 Z Pajaraja Senior Postmen (BOI14_postmen) C++17
100 / 100
 500 ms 46504 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
vector<long long> g[500007];
int dk[500007];
stack<int> st,sk;
bool vi[500007],vig[500007];
inline void euler(int s)
{
	while(dk[s]<g[s].size())
	{
		if(!vig[g[s][dk[s]]>>32LL])
		{
			vig[g[s][dk[s]]>>32LL]=true;
			euler(g[s][dk[s]++]&((1LL<<32LL)-1));
		}
		else dk[s]++;
	}
	st.push(s);
}
int main()
{
	int n,m;
	scanf("%d%d",&n,&m);
	for(int i=0;i<m;i++)
	{
		int t1,t2;
		scanf("%d%d",&t1,&t2);
		g[t1].push_back(t2+(((long long)i)<<32LL));
		g[t2].push_back(t1+(((long long)i)<<32LL));
	}
	euler(1);
	for(int i=0;i<m+1;i++)
	{
		int x=st.top();
		st.pop();
		if(vi[x])
		{
			while(true)
			{
				int y=sk.top();
				printf("%d ",y);
				sk.pop();
				vi[y]=false;
				if(y==x) break;
			}
			printf("\n");
		}
		sk.push(x);
		vi[x]=true;
	}
}

Compilation message

postmen.cpp: In function 'void euler(int)':
postmen.cpp:10:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(dk[s]<g[s].size())
        ~~~~~^~~~~~~~~~~~
postmen.cpp: In function 'int main()':
postmen.cpp:24:7: 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",&t1,&t2);
   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 12160 KB Output is correct
2 Correct 11 ms 12032 KB Output is correct
3 Correct 11 ms 12160 KB Output is correct
4 Correct 12 ms 12288 KB Output is correct
5 Correct 12 ms 12160 KB Output is correct
6 Correct 13 ms 12288 KB Output is correct
7 Correct 17 ms 12928 KB Output is correct
8 Correct 12 ms 12160 KB Output is correct
9 Correct 47 ms 16376 KB Output is correct
10 Correct 13 ms 12160 KB Output is correct
11 Correct 13 ms 12160 KB Output is correct
12 Correct 52 ms 16760 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 11 ms 12032 KB Output is correct
3 Correct 11 ms 12032 KB Output is correct
4 Correct 12 ms 12288 KB Output is correct
5 Correct 11 ms 12160 KB Output is correct
6 Correct 12 ms 12288 KB Output is correct
7 Correct 17 ms 12800 KB Output is correct
8 Correct 12 ms 12288 KB Output is correct
9 Correct 46 ms 16376 KB Output is correct
10 Correct 12 ms 12160 KB Output is correct
11 Correct 12 ms 12160 KB Output is correct
12 Correct 53 ms 16760 KB Output is correct
13 Correct 75 ms 18428 KB Output is correct
14 Correct 73 ms 17272 KB Output is correct
15 Correct 68 ms 17640 KB Output is correct
16 Correct 79 ms 18424 KB Output is correct
17 Correct 99 ms 16500 KB Output is correct
18 Correct 70 ms 17656 KB Output is correct

Subtask #3
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 12032 KB Output is correct
2 Correct 11 ms 12032 KB Output is correct
3 Correct 11 ms 12032 KB Output is correct
4 Correct 12 ms 12288 KB Output is correct
5 Correct 11 ms 12160 KB Output is correct
6 Correct 13 ms 12288 KB Output is correct
7 Correct 18 ms 12800 KB Output is correct
8 Correct 12 ms 12160 KB Output is correct
9 Correct 47 ms 16376 KB Output is correct
10 Correct 12 ms 12160 KB Output is correct
11 Correct 13 ms 12160 KB Output is correct
12 Correct 51 ms 16760 KB Output is correct
13 Correct 72 ms 18424 KB Output is correct
14 Correct 72 ms 17272 KB Output is correct
15 Correct 67 ms 17644 KB Output is correct
16 Correct 74 ms 18424 KB Output is correct
17 Correct 78 ms 16504 KB Output is correct
18 Correct 72 ms 17656 KB Output is correct
19 Correct 472 ms 44152 KB Output is correct
20 Correct 446 ms 38520 KB Output is correct
21 Correct 414 ms 39856 KB Output is correct
22 Correct 475 ms 44152 KB Output is correct
23 Correct 198 ms 32504 KB Output is correct
24 Correct 500 ms 34296 KB Output is correct
25 Correct 479 ms 46504 KB Output is correct