oj.uz

Submission #783553

# Submission time Handle Problem Language Result Execution time Memory
783553 2023-07-15T03:44:19 Z Malix Connecting Supertrees (IOI20_supertrees) C++14
40 / 100
 280 ms 22196 KB 
#include "supertrees.h"
#include <vector>
#include <bits/stdc++.h>

using namespace std;

int construct(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);
	}

	if(n==1){
		answer[0][0] = 0;
		build(answer);
		return 1;
	}

	int count = 0;
	int zerocount = 0;
	for(int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			if(p[i][j] == 1){
				count++;
			}
			else if(p[i][j] == 0){
				zerocount++;
			}
		}
	}


	if(zerocount == (n*n)-n){
		for(int i = 0; i < n; i++){
			for(int j = 0; j < n; j++){
				answer[i][j] = 0;
			}
		}
		build(answer);
		return 1;
	}

	//subtask 1
	if(count == n*n){
		for(int i = 0; i < n; i++){
			for(int j = 0; j < n; j++){
				answer[i][j] = 0;
			}
		}
		for(int i = 1; i < n; i++){
			answer[i][0] = 1;
			answer[0][i] = 1;
		}
		build(answer);
		return 1;
	}

	//subtask 2
	count = 0;
	for(int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			if(p[i][j] <= 1){
				count++;
			}
		}
	}
	if(count == n*n){

		vector<int> arr(n, 0);
		vector<int> arr2;
		int arr2size;

		for(int i = 0; i < n; i++){
			for(int j = 0; j < n; j++){
				answer[i][j] = 0;
			}
		}

		int currentIndex = 0;

		while(currentIndex != n){

			if(!arr[currentIndex]){
				arr2.push_back(currentIndex);
				for(int i = 0; i < n; i++){
					if(p[currentIndex][i]){
						if(arr[i]){
							return 0;
						}
						answer[currentIndex][i] = 1;
						answer[i][currentIndex] = 1;
						if(currentIndex != i){
							arr[i]++;
						}
						arr2.push_back(i);


					}
				}
				arr2size = arr2.size();
				for(int k = 0; k < arr2size-1; k++){
					for(int m = k+1; m < arr2size; m++){
						if(!p[arr2[k]][arr2[m]]){
							return 0;
						}
					}
				}
				for(int k = 0; k < arr2size; k++){
					for(int m = 0; m < n; m++){
						if(p[arr2[k]][m]){
							if(find(arr2.begin(), arr2.end(), m) == arr2.end()){
								return 0;
							}
						}
					}
				}

				arr[currentIndex]++;
				arr2.clear();
			}



			currentIndex++;
		}


		for(int i = 0 ; i < n; i++){
			if(arr[i] > 1){
				return 0;
			}
		}



		for(int i = 0; i < n; i++){
			answer[i][i] = 0;
		}

		build(answer);
		return 1;
	}

	//subtask 3
	count = 0;
	for(int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			if(p[i][j] == 0 || p[i][j] == 2){
				count++;
			}
		}
	}
	if(count == (n*n)-n){

		if(n==2){
			return 0;
		}

		vector<int> arr(n, 0);
		vector<int> arr2;
		int arr2size;

		for(int i = 0; i < n; i++){
			for(int j = 0; j < n; j++){
				answer[i][j] = 0;
			}
		}

		int currentIndex = 0;

		while(currentIndex != n){

			if(!arr[currentIndex]){
				arr2.push_back(currentIndex);
				for(int i = 0; i < n; i++){
					if(p[currentIndex][i]){
						if(arr[i]){
							return 0;
						}

						if(currentIndex != i){
							arr[i]++;
							arr2.push_back(i);
						}


					}
				}
				arr2size = arr2.size();

				if(arr2size > 2){
					answer[arr2[0]][arr2[arr2size-1]] = 1;
					answer[arr2[arr2size-1]][arr2[0]] = 1;
					for(int k = 0; k < arr2size-1; k++){
						answer[arr2[k]][arr2[k+1]] = 1;
						answer[arr2[k+1]][arr2[k]] = 1;
					}
				}
				else if(arr2size == 2){
					return 0;
				}


				for(int k = 0; k < arr2size-1; k++){
					for(int m = k+1; m < arr2size; m++){
						if(!p[arr2[k]][arr2[m]]){
							return 0;
						}
					}
				}

				for(int k = 0; k < arr2size; k++){
					for(int m = 0; m < n; m++){
						if(p[arr2[k]][m]){
							if(find(arr2.begin(), arr2.end(), m) == arr2.end()){
								return 0;
							}
						}
					}
				}

				arr[currentIndex]++;
				arr2.clear();
			}



			currentIndex++;
		}


		for(int i = 0 ; i < n; i++){
			if(arr[i] > 1){
				return 0;
			}
		}



		for(int i = 0; i < n; i++){
			answer[i][i] = 0;
		}

		build(answer);
		return 1;
	}

	//subtask 4
	count = 0;
	for(int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			if(p[i][j] <= 2){
				count++;
			}
		}
	}
	if(count == n*n){

		vector<int> arr(n, 0);
		vector<int> arr2;
		int arr2size;

		for(int i = 0; i < n; i++){
			for(int j = 0; j < n; j++){
				answer[i][j] = 0;
			}
		}

		int currentIndex = 0;

		while(currentIndex != n){

			if(!arr[currentIndex]){
				arr2.push_back(currentIndex);
				for(int i = 0; i < n; i++){
					if(p[currentIndex][i] == 2){

						if(currentIndex != i){
							arr[i]++;
							arr2.push_back(i);
						}


					}
				}
				arr2size = arr2.size();


                answer[arr2[0]][arr2[arr2size-1]] = 1;
                answer[arr2[arr2size-1]][arr2[0]] = 1;
                for(int k = 0; k < arr2size-1; k++){
                    answer[arr2[k]][arr2[k+1]] = 1;
                    answer[arr2[k+1]][arr2[k]] = 1;
                }
				

				arr[currentIndex]++;
				arr2.clear();
			}


			currentIndex++;
		}

        
        
        //0 or 1 part
        currentIndex = 0;
        arr.resize(n, 0);
        arr2.clear();
		while(currentIndex != n){

			if(!arr[currentIndex]){
				arr2.push_back(currentIndex);
				for(int i = 0; i < n; i++){
					if(p[currentIndex][i] == 1){

						answer[currentIndex][i] = 1;
						answer[i][currentIndex] = 1;
						if(currentIndex != i){
							arr[i]++;
						}
						arr2.push_back(i);


					}
				}
				arr2size = arr2.size();


				arr[currentIndex]++;
				arr2.clear();
			}


			currentIndex++;
		}
		
		

		for(int i = 0; i < n; i++){
			answer[i][i] = 0;
		}

		build(answer);
		return 1;
		
	}



	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 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 7 ms 1136 KB Output is correct
7 Correct 145 ms 22032 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 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 7 ms 1136 KB Output is correct
7 Correct 145 ms 22032 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 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 1120 KB Output is correct
13 Correct 146 ms 22020 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 724 KB Output is correct
17 Correct 67 ms 12052 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 45 ms 5652 KB Output is correct
21 Correct 157 ms 22000 KB Output is correct
22 Correct 150 ms 22016 KB Output is correct
23 Correct 199 ms 22016 KB Output is correct
24 Correct 154 ms 22016 KB Output is correct
25 Correct 63 ms 12036 KB Output is correct
26 Correct 62 ms 12036 KB Output is correct
27 Correct 202 ms 22032 KB Output is correct
28 Correct 171 ms 21964 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory 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 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 6 ms 1108 KB Output is correct
9 Correct 145 ms 22020 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 8 ms 1108 KB Output is correct
13 Correct 280 ms 22196 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 716 KB Output is correct
17 Correct 66 ms 12048 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 38 ms 5764 KB Output is correct
22 Correct 159 ms 22092 KB Output is correct
23 Correct 151 ms 22020 KB Output is correct
24 Correct 200 ms 21964 KB Output is correct
25 Correct 64 ms 12048 KB Output is correct
26 Correct 62 ms 12044 KB Output is correct
27 Correct 150 ms 22036 KB Output is correct
28 Correct 209 ms 22020 KB Output is correct
29 Correct 63 ms 12040 KB Output is correct

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 38 ms 5700 KB Output is correct
5 Correct 150 ms 22000 KB Output is correct
6 Correct 151 ms 21964 KB Output is correct
7 Correct 197 ms 22056 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 38 ms 5676 KB Output is correct
10 Correct 152 ms 22032 KB Output is correct
11 Correct 151 ms 22020 KB Output is correct
12 Correct 206 ms 22024 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Incorrect 0 ms 212 KB Too few ways to get from 4 to 5, should be 1 found 0
15 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 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 7 ms 1136 KB Output is correct
7 Correct 145 ms 22032 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 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 1120 KB Output is correct
13 Correct 146 ms 22020 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 724 KB Output is correct
17 Correct 67 ms 12052 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 45 ms 5652 KB Output is correct
21 Correct 157 ms 22000 KB Output is correct
22 Correct 150 ms 22016 KB Output is correct
23 Correct 199 ms 22016 KB Output is correct
24 Correct 154 ms 22016 KB Output is correct
25 Correct 63 ms 12036 KB Output is correct
26 Correct 62 ms 12036 KB Output is correct
27 Correct 202 ms 22032 KB Output is correct
28 Correct 171 ms 21964 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 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 6 ms 1108 KB Output is correct
37 Correct 145 ms 22020 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 8 ms 1108 KB Output is correct
41 Correct 280 ms 22196 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 3 ms 716 KB Output is correct
45 Correct 66 ms 12048 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 38 ms 5764 KB Output is correct
50 Correct 159 ms 22092 KB Output is correct
51 Correct 151 ms 22020 KB Output is correct
52 Correct 200 ms 21964 KB Output is correct
53 Correct 64 ms 12048 KB Output is correct
54 Correct 62 ms 12044 KB Output is correct
55 Correct 150 ms 22036 KB Output is correct
56 Correct 209 ms 22020 KB Output is correct
57 Correct 63 ms 12040 KB Output is correct
58 Incorrect 1 ms 212 KB Answer gives possible 1 while actual possible 0
59 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 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 7 ms 1136 KB Output is correct
7 Correct 145 ms 22032 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 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 1120 KB Output is correct
13 Correct 146 ms 22020 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 724 KB Output is correct
17 Correct 67 ms 12052 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 45 ms 5652 KB Output is correct
21 Correct 157 ms 22000 KB Output is correct
22 Correct 150 ms 22016 KB Output is correct
23 Correct 199 ms 22016 KB Output is correct
24 Correct 154 ms 22016 KB Output is correct
25 Correct 63 ms 12036 KB Output is correct
26 Correct 62 ms 12036 KB Output is correct
27 Correct 202 ms 22032 KB Output is correct
28 Correct 171 ms 21964 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 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 6 ms 1108 KB Output is correct
37 Correct 145 ms 22020 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 8 ms 1108 KB Output is correct
41 Correct 280 ms 22196 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 3 ms 716 KB Output is correct
45 Correct 66 ms 12048 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 38 ms 5764 KB Output is correct
50 Correct 159 ms 22092 KB Output is correct
51 Correct 151 ms 22020 KB Output is correct
52 Correct 200 ms 21964 KB Output is correct
53 Correct 64 ms 12048 KB Output is correct
54 Correct 62 ms 12044 KB Output is correct
55 Correct 150 ms 22036 KB Output is correct
56 Correct 209 ms 22020 KB Output is correct
57 Correct 63 ms 12040 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 38 ms 5700 KB Output is correct
62 Correct 150 ms 22000 KB Output is correct
63 Correct 151 ms 21964 KB Output is correct
64 Correct 197 ms 22056 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 38 ms 5676 KB Output is correct
67 Correct 152 ms 22032 KB Output is correct
68 Correct 151 ms 22020 KB Output is correct
69 Correct 206 ms 22024 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Incorrect 0 ms 212 KB Too few ways to get from 4 to 5, should be 1 found 0
72 Halted 0 ms 0 KB -