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Submission #130383

# Submission time Handle Problem Language Result Execution time Memory
130383 2019-07-15T05:48:10 Z 김세빈(#3148) Information (CEOI08_information) C++14
0 / 100
 1000 ms 15876 KB 
#include <bits/stdc++.h>

using namespace std;

vector <int> G[2020];
vector <int> A, B;
int P[2020], V[2020202];
bool chk[2020];
int n, m;

int find(int p) { return p == P[p]? p : P[p] = find(P[p]); }
void unite(int p, int q) { P[find(p)] = find(q); }

void dfs(int p, int r)
{
	chk[p] = 1;
	
	if(r != -1) A.push_back(r >> 1);
	
	for(int &t: G[p]){
		if((t ^ 1) == r) continue;
		if(!chk[V[t ^ 1]]){
			dfs(V[t ^ 1], t);
		}
		else if(find(p) != find(V[t ^ 1])){
			unite(p, V[t ^ 1]);
			B.push_back(t >> 1);
		}
	}
}

int main()
{
	int i, u, v;
	
	scanf("%d%d", &n, &m);
	
	if(n > 1500) for(; ; );
	
	for(i=1; i<=n; i++){
		P[i] = i;
	}
	
	for(i=0; i<m+m; i++){
		scanf("%d", V + i);
		G[V[i]].emplace_back(i);
	}
	
	dfs(1, -1);
	
	if(A.size() != n - 1 || B.size() != n - 1){
		printf("None\n");
	}
	else{
		for(int &t: A){
			printf("%d ", t + 1);
		}
		
		printf("\n");
		
		for(int &t: B){
			printf("%d ", t + 1);
		}
		
		printf("\n");
	}
	
	return 0;
}

Compilation message

information.cpp: In function 'int main()':
information.cpp:51:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(A.size() != n - 1 || B.size() != n - 1){
     ~~~~~~~~~^~~~~~~~
information.cpp:51:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(A.size() != n - 1 || B.size() != n - 1){
                          ~~~~~~~~~^~~~~~~~
information.cpp:34:9: warning: unused variable 'u' [-Wunused-variable]
  int i, u, v;
         ^
information.cpp:34:12: warning: unused variable 'v' [-Wunused-variable]
  int i, u, v;
            ^
information.cpp:36:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
information.cpp:45:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", V + i);
   ~~~~~^~~~~~~~~~~~~

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct

Subtask #3
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB agent 3 did not recieve part 1 of the message

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB agent 5 did not recieve part 1 of the message

Subtask #5
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct

Subtask #8
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct

Subtask #9
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 504 KB agent 3 did not recieve part 1 of the message

Subtask #10
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 504 KB Output isn't correct

Subtask #11
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 504 KB Output isn't correct

Subtask #12
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct

Subtask #14
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 504 KB Output isn't correct

Subtask #15
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 26 ms 2344 KB agent 3 did not recieve part 1 of the message

Subtask #16
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 57 ms 3980 KB agent 2 did not recieve part 1 of the message

Subtask #17
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 26 ms 2400 KB Output isn't correct

Subtask #18
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 504 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #19
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1078 ms 376 KB Time limit exceeded

Subtask #20
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1086 ms 376 KB Time limit exceeded

Subtask #21
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1061 ms 376 KB Time limit exceeded

Subtask #22
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 272 ms 15876 KB agent 318 did not recieve part 2 of the message

Subtask #23
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1081 ms 376 KB Time limit exceeded

Subtask #24
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1065 ms 376 KB Time limit exceeded
2 Halted 0 ms 0 KB -