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Submission #1040711

# Submission time Handle Problem Language Result Execution time Memory
1040711 2024-08-01T08:40:12 Z 김은성(#10995) The Ties That Guide Us (CEOI23_incursion) C++17
0 / 100
 69 ms 9388 KB 
#include <cstdio>
#include <algorithm>
#include <vector>
#include <cstring>
#include <string>
#include <set>
#include <map>
#include <deque>
#include <queue>
#include "incursion.h"
using namespace std;
typedef long long ll;
const ll INF = 0x3fffffffffffffff;
int d[45009];
bool ch[45009];
vector<int> graph[45009];
bool mar[6] = {0, 0, 1, 1, 0, 1};
void dfs(int v){
	ch[v] = 1;
	for(int i=0; i<graph[v].size(); i++){
		int u = graph[v][i];
		if(ch[u])
			continue;
		d[u] = d[v] + 1;
		dfs(u);
	}
}
std::vector<int> mark(std::vector<std::pair<int, int>> F, int safe) {
	int n = (int)F.size() + 1, i;
	for(i=0; i<n-1; i++){
		graph[F[i].first].push_back(F[i].second);
		graph[F[i].second].push_back(F[i].first);
	}
	dfs(safe);
	vector<int> ret(n);
	for(i=0; i<n; i++){
		ret[i] = mar[d[i+1]];
		if(graph[i+1].size() == 1){
			if(safe != i+1)
				ret[i] = 1;
			else
				ret[i] = 0;
		}
	}
	return ret;
}
void locate(std::vector<std::pair<int, int>> F, int curr, int t) {
	int n = (int)F.size() + 1, i, j;
	for(i=1; i<=n; i++){
		graph[i].clear();
		ch[i] = 0;
	}
	for(i=0; i<n-1; i++){
		graph[F[i].first].push_back(F[i].second);
		graph[F[i].second].push_back(F[i].first);
	}
	if(graph[curr].size() == 2){
		int c1 = visit(graph[curr][0]);
		int c2 = visit(curr);
		int c3 = visit(graph[curr][1]);
		visit(curr);
		if(c1 + c2 + c3 == 0)
			return;
	}
	vector<int> colors;
	colors.push_back(t);
	vector<int> st;
	st.push_back(curr);
	int v = curr;
	for(i=0; i<10; i++){
		ch[v] = 1;
		for(j=0; j<graph[v].size(); j++){
			if(!ch[graph[v][j]]){
				st.push_back(graph[v][j]);
				colors.push_back(visit(graph[v][j]));
				v= graph[v][j];
				break;
			}
		}
		if(j == graph[v].size()){
			if(colors.back() == 0)
				return;
			else
				break;
		}
	}
	while(1){
		st.pop_back();
		if(st.empty())
			break;
		visit(st.back());
	}
	memset(ch, 0, sizeof(ch));
	int cor;
	if(colors.size() != 11)
		cor = 1;
	else{
		for(i=0; i<11; i++){
			if(colors[i] == 0)
				break;
		}
		for(i++; i<11; i++){
			if(colors[i] == 1)
				break;
		}
		int cnt = 0, cnt2 = 0;
		for(; i<11; i++){
			if(colors[i] == 1)
				cnt++;
			else
				break;
		}
		for(; i<11; i++){
			if(colors[i] == 0)
				cnt2++;
			else
				break;
		}
		if(cnt2>=3 || cnt == cnt2)
			cor = 0;
		else
			cor = 1;
	}
	int zero = 1 - t;
	ch[curr] = 1;
	ch[graph[curr][cor]] = 1;
	v = graph[curr][cor];
	if(visit(v) == 0)
		zero++;
	else
		zero = 0;
	while(1){
		if(zero == 3 || graph[v].size() == 1)
			return;
		for(int i=0; i<graph[v].size(); i++){
			if(ch[graph[v][i]])
				continue;
			if(visit(graph[v][i]) == 0)
				zero++;
			else
				zero = 0;
		}
	}
}

Compilation message

incursion.cpp: In function 'void dfs(int)':
incursion.cpp:20:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |  for(int i=0; i<graph[v].size(); i++){
      |               ~^~~~~~~~~~~~~~~~
incursion.cpp: In function 'void locate(std::vector<std::pair<int, int> >, int, int)':
incursion.cpp:72:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |   for(j=0; j<graph[v].size(); j++){
      |            ~^~~~~~~~~~~~~~~~
incursion.cpp:80:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |   if(j == graph[v].size()){
      |      ~~^~~~~~~~~~~~~~~~~~
incursion.cpp:135:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  135 |   for(int i=0; i<graph[v].size(); i++){
      |                ~^~~~~~~~~~~~~~~~
interface.cpp: In function 'int main()':
interface.cpp:44:55: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   44 |     if(fread(T.data(), sizeof(int), 2 * N - 2, stdin) != 2 * N - 2) exit(0);
      |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
interface.cpp:50:33: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   50 |         int l = (numbers.size() == N ? N : 0);
      |                  ~~~~~~~~~~~~~~~^~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2816 KB Correct

Subtask #1
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 69 ms 9388 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 68 ms 7536 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #3
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2816 KB Correct
2 Incorrect 69 ms 9388 KB Not correct
3 Halted 0 ms 0 KB -