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Submission #130391

# Submission time Handle Problem Language Result Execution time Memory
130391 2019-07-15T06:09:55 Z 김세빈(#3148) Information (CEOI08_information) C++14
46 / 100
 203 ms 9464 KB 
#include <bits/stdc++.h>

using namespace std;

vector <int> G[2020];
vector <int> A, B;
int P[2020], V[1010101];
bool chk1[2020], chk2[1010101];
int n, m, x;

void dfs1(int p, int r)
{
	chk1[p] = 1;
	
	if(r){
		A.push_back(r);
		chk2[r] = 1;
	}
	
	for(int &t: G[p]){
		if(!chk1[V[t]]){
			dfs1(V[t], t);
		}
	}
}

void dfs2(int p, int r)
{
	chk1[p] = 0;
	
	if(r){
		B.push_back(r);
	}
	
	for(int &t: G[p]){
		if(!chk2[t] && chk1[V[t]]){
			dfs2(V[t], t);
		}
	}
}

int main()
{
	int i, u;
	
	scanf("%d%d", &n, &m);
	
	for(i=1; i<=m; i++){
		scanf("%d%d", &u, V + i);
		G[u].emplace_back(i);
	}
	
	dfs1(1, 0); dfs2(1, 0);
	
	if(A.size() != n - 1 || B.size() != n - 1){
		printf("NONE\n");
	}
	else{
		for(int &t: A){
			printf("%d ", t);
		}
		
		printf("\n");
		
		for(int &t: B){
			printf("%d ", t);
		}
		
		printf("\n");
	}
	
	return 0;
}

Compilation message

information.cpp: In function 'int main()':
information.cpp:55:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(A.size() != n - 1 || B.size() != n - 1){
     ~~~~~~~~~^~~~~~~~
information.cpp:55:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(A.size() != n - 1 || B.size() != n - 1){
                          ~~~~~~~~~^~~~~~~~
information.cpp:46:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
information.cpp:49:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &u, 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
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct

Subtask #4
0 / 4.0

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

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
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct

Subtask #8
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct

Subtask #9
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct

Subtask #10
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 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
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct

Subtask #15
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 1380 KB Output is correct

Subtask #16
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 42 ms 2424 KB Output isn't correct

Subtask #17
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 20 ms 1400 KB Output isn't correct

Subtask #18
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct

Subtask #19
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct

Subtask #20
0 / 4.0

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

Subtask #21
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 195 ms 8864 KB Output is correct

Subtask #22
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 9080 KB Output is correct

Subtask #23
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 203 ms 9464 KB Output isn't correct

Subtask #24
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 504 KB Output isn't correct
2 Halted 0 ms 0 KB -