oj.uz

답안 #291409

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
291409 2020-09-05T10:18:10 Z abyyskit 장난감 기차 (IOI17_train) C++14
5 / 100
 2000 ms 1264 KB 
#include "train.h"
#include<bits/stdc++.h>
using namespace std;
#define FOR(i, x, y) for(int i = x; i < y; ++i)
#define pb push_back


struct node{
	vector<int> e;
	bool charge = false;
	bool A = false;
	bool vis = false;
};

vector<node> g;

vector<int> subtask1(){
	vector<int> ans(g.size(), 0);
	for(int i = g.size() - 1; i >= 0; --i){
		if (g[i].A){
			ans[i] = 0;
		}
		else{
			ans[i] = 1;
		}
		FOR(j, 0, g[i].e.size()){
			int nex = g[i].e[j];
		//	cout << "nex: " << nex << "\n";
			if (g[i].A){
				if (g[i].charge && nex == i){
					ans[i] = 1;
					break;
				}
				if (nex != i){
					ans[i] = max(ans[i], ans[i + 1]);
				}
			}
			else{
				if (nex == i){
					if (!g[i].charge){
						ans[i] = 0;
						break;
					}
				}
				else{
					ans[i] = min(ans[i], ans[i + 1]);
				}
			}
		}
	}
	return ans;
}

int s2dfs(int start, int prev){
	g[start].vis = true;
	if (g[start].charge){
		prev = start;
	}
	int ans;
	if (g[start].A){
		ans = 0;
	}
	else{
		ans = 1;
	}
	FOR(i, 0, g[start].e.size()){
		int nex = g[start].e[i];
		if (!g[nex].vis){
			int tmp = s2dfs(nex, prev);
			if (g[start].A){
				ans = max(ans, tmp);
			}
			else{
				ans = min(ans, tmp);
			}
		}
		else{
			if (nex <= prev){
				if (g[start].A){
					ans = 1;
				}	
			}
			else{
				if (!g[start].A){
					ans = 0;
				}
			}
		}
	}
	g[start].vis = false;
	return ans;
}


vector<int> subtask2(){
	vector<int> ans(g.size(), 0);
	FOR(i, 0, g.size()){
		ans[i] = s2dfs(i, -1);
	}
	return ans;
}

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v){
	g.resize(a.size());
	FOR(i, 0, u.size()){
		g[u[i]].e.pb(v[i]);
	}
//	cout << "here\n";
	FOR(i, 0, a.size()){
		if (a[i] == 1){
			g[i].A = true;
		}
		if (r[i] == 1){
			g[i].charge = true;
		}
	}
//	cout << "here2" << "\n";
	return subtask2();
}

Compilation message

train.cpp: In function 'std::vector<int> subtask1()':
train.cpp:4:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define FOR(i, x, y) for(int i = x; i < y; ++i)
......
   26 |   FOR(j, 0, g[i].e.size()){
      |       ~~~~~~~~~~~~~~~~~~~              
train.cpp:26:3: note: in expansion of macro 'FOR'
   26 |   FOR(j, 0, g[i].e.size()){
      |   ^~~
train.cpp: In function 'int s2dfs(int, int)':
train.cpp:4:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define FOR(i, x, y) for(int i = x; i < y; ++i)
......
   66 |  FOR(i, 0, g[start].e.size()){
      |      ~~~~~~~~~~~~~~~~~~~~~~~           
train.cpp:66:2: note: in expansion of macro 'FOR'
   66 |  FOR(i, 0, g[start].e.size()){
      |  ^~~
train.cpp: In function 'std::vector<int> subtask2()':
train.cpp:4:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<node>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define FOR(i, x, y) for(int i = x; i < y; ++i)
......
   97 |  FOR(i, 0, g.size()){
      |      ~~~~~~~~~~~~~~                    
train.cpp:97:2: note: in expansion of macro 'FOR'
   97 |  FOR(i, 0, g.size()){
      |  ^~~
train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:4:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define FOR(i, x, y) for(int i = x; i < y; ++i)
......
  105 |  FOR(i, 0, u.size()){
      |      ~~~~~~~~~~~~~~                    
train.cpp:105:2: note: in expansion of macro 'FOR'
  105 |  FOR(i, 0, u.size()){
      |  ^~~
train.cpp:4:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define FOR(i, x, y) for(int i = x; i < y; ++i)
......
  109 |  FOR(i, 0, a.size()){
      |      ~~~~~~~~~~~~~~                    
train.cpp:109:2: note: in expansion of macro 'FOR'
  109 |  FOR(i, 0, a.size()){
      |  ^~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 292 ms 1024 KB Output is correct
2 Correct 103 ms 1016 KB Output is correct
3 Correct 46 ms 896 KB Output is correct
4 Correct 18 ms 1024 KB Output is correct
5 Correct 8 ms 896 KB Output is correct
6 Correct 6 ms 896 KB Output is correct
7 Correct 5 ms 896 KB Output is correct
8 Correct 5 ms 896 KB Output is correct
9 Correct 5 ms 896 KB Output is correct
10 Correct 4 ms 896 KB Output is correct
11 Correct 4 ms 896 KB Output is correct

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 256 KB 3rd lines differ - on the 2nd token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2074 ms 1152 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2072 ms 1024 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2082 ms 1264 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 292 ms 1024 KB Output is correct
2 Correct 103 ms 1016 KB Output is correct
3 Correct 46 ms 896 KB Output is correct
4 Correct 18 ms 1024 KB Output is correct
5 Correct 8 ms 896 KB Output is correct
6 Correct 6 ms 896 KB Output is correct
7 Correct 5 ms 896 KB Output is correct
8 Correct 5 ms 896 KB Output is correct
9 Correct 5 ms 896 KB Output is correct
10 Correct 4 ms 896 KB Output is correct
11 Correct 4 ms 896 KB Output is correct
12 Incorrect 1 ms 256 KB 3rd lines differ - on the 2nd token, expected: '1', found: '0'
13 Halted 0 ms 0 KB -