oj.uz

답안 #807380

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
807380 2023-08-04T16:34:07 Z nemethm 슈퍼트리 잇기 (IOI20_supertrees) C++17
21 / 100
 147 ms 25992 KB 
#include "supertrees.h"
#include <vector>

using namespace std;

int cmp[1010] = {0};

int subtask3(std::vector<std::vector<int>> p){
	int n = p.size();
	std::vector<std::vector<int>> answer;
	for (int i = 0; i < n; i++) {
		std::vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}
	int id = 0;
	vector<vector<int>> elek;
	for(int i = 0; i < n; ++i){
		bool uj = false;
		if(cmp[i] != 0 && p[i][i] == 1){
			return 0;
		}
		if(cmp[i] == 0){
			++id;
			cmp[i] = id;
			uj = true;
			elek.push_back({i});
		}
		for(int j = 0; j < n; ++j){
			if(j == i) continue;
			if(p[i][j] == 2){
				if(cmp[j] != cmp[i] && !uj){
					return 0;
				}
				else if(uj){
					cmp[j] = cmp[i];
					elek.back().push_back(j);
				}
			}
			else{
				if(cmp[j] == cmp[i]){
					return 0;
				}
			}
		}
		if(uj && elek.back().size() > 1 && p[i][i] == 1){
			return 0;
		}
	}
	for(auto& v : elek){
		if(v.size() == 2){
			return 0;
		}
		if(v.size() > 2){
			for(int i = 0; i < v.size(); ++i){
				answer[v[i]][v[(i + 1) % v.size()]] = answer[v[(i + 1) % v.size()]][v[i]] = 1;
			}
		}
	}
	build(answer);
	return 1;
}

int subtask12(std::vector<std::vector<int>> p){
		int n = p.size();
	std::vector<std::vector<int>> answer;
	for (int i = 0; i < n; i++) {
		std::vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}
	int id = 0;
	vector<vector<pair<int,int>>> elek;
	for(int i = 0; i < n; ++i){
		bool uj = false;
		if(cmp[i] == 0){
			++id;
			cmp[i] = id;
			uj = true;
			elek.push_back({});
		}
		for(int j = 0; j < n; ++j){
			if(j == i) continue;
			if(p[i][j] == 1){
				if(cmp[j] != cmp[i] && !uj){
					return 0;
				}
				else if(uj){
					cmp[j] = cmp[i];
					elek.back().push_back({j, i});
				}
			}
			else{
				if(cmp[j] == cmp[i]){
					return 0;
				}
			}
		}
	}
	for(auto& v : elek){
		for(auto i : v){
			answer[i.first][i.second] = answer[i.second][i.first] = 1;
		}
	}
	build(answer);
	return 1;
}

int construct(std::vector<std::vector<int>> p) {
	for(int i = 0; i < p.size(); ++i){
		for(int j = 0; j < p.size(); ++j){
			if(p[i][j] == 2){
				return subtask3(p);
			}
		}
	}
	return subtask12(p);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int subtask3(std::vector<std::vector<int> >)':
supertrees.cpp:55:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |    for(int i = 0; i < v.size(); ++i){
      |                   ~~^~~~~~~~~~
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:110:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  110 |  for(int i = 0; i < p.size(); ++i){
      |                 ~~^~~~~~~~~~
supertrees.cpp:111:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  111 |   for(int j = 0; j < p.size(); ++j){
      |                  ~~^~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1236 KB Output is correct
7 Correct 139 ms 25932 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1236 KB Output is correct
7 Correct 139 ms 25932 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1236 KB Output is correct
13 Correct 137 ms 25976 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 65 ms 16000 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 35 ms 6732 KB Output is correct
21 Correct 135 ms 25992 KB Output is correct
22 Correct 135 ms 25976 KB Output is correct
23 Correct 146 ms 25932 KB Output is correct
24 Correct 136 ms 25984 KB Output is correct
25 Correct 63 ms 15992 KB Output is correct
26 Correct 69 ms 15992 KB Output is correct
27 Correct 147 ms 25980 KB Output is correct
28 Correct 136 ms 25956 KB Output is correct

Subtask #3
0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Incorrect 0 ms 212 KB Answer gives possible 0 while actual possible 1
6 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 0 ms 212 KB Answer gives possible 0 while actual possible 1
3 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1236 KB Output is correct
7 Correct 139 ms 25932 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1236 KB Output is correct
13 Correct 137 ms 25976 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 65 ms 16000 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 35 ms 6732 KB Output is correct
21 Correct 135 ms 25992 KB Output is correct
22 Correct 135 ms 25976 KB Output is correct
23 Correct 146 ms 25932 KB Output is correct
24 Correct 136 ms 25984 KB Output is correct
25 Correct 63 ms 15992 KB Output is correct
26 Correct 69 ms 15992 KB Output is correct
27 Correct 147 ms 25980 KB Output is correct
28 Correct 136 ms 25956 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Incorrect 0 ms 212 KB Answer gives possible 0 while actual possible 1
34 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1236 KB Output is correct
7 Correct 139 ms 25932 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1236 KB Output is correct
13 Correct 137 ms 25976 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 65 ms 16000 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 35 ms 6732 KB Output is correct
21 Correct 135 ms 25992 KB Output is correct
22 Correct 135 ms 25976 KB Output is correct
23 Correct 146 ms 25932 KB Output is correct
24 Correct 136 ms 25984 KB Output is correct
25 Correct 63 ms 15992 KB Output is correct
26 Correct 69 ms 15992 KB Output is correct
27 Correct 147 ms 25980 KB Output is correct
28 Correct 136 ms 25956 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Incorrect 0 ms 212 KB Answer gives possible 0 while actual possible 1
34 Halted 0 ms 0 KB -