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답안 #300161

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
300161 2020-09-16T22:00:28 Z model_code 슈퍼트리 잇기 (IOI20_supertrees) Java 11
100 / 100
 628 ms 60916 KB 
// yanhao-full
import java.util.ArrayList;
import java.util.Arrays;

class supertrees {
	int n;
	int construct(int[][] p) {
		n = p.length;
		ArrayList<ArrayList<Integer>> components1 = new ArrayList<>();
		ArrayList<ArrayList<Integer>> components2 = new ArrayList<>();
		for(int i=0; i<n; i++) components1.add(new ArrayList<>());
		for(int i=0; i<n; i++) components2.add(new ArrayList<>());
		for(int i=0; i<n; i++) {
			for(int j=0; j<n; j++) {
				if(p[i][j]==3) return 0;
			}
		}
		int[] parent1 = new int[n];
		int[] parent2 = new int[n];
		for(int i=0; i<n; i++) {
			parent1[i] = i;
			parent2[i] = i;
		}
		
		for(int i=0; i<n; i++) {
			for(int j=0; j<n; j++) {
				if(p[i][j]==1) {
					parent1[i] = j;
					components1.get(j).add(i);
					break;
				}
			}
		}
		for(int i=0; i<n; i++) {
			if(parent1[i]!=i) continue;
			for(int j=0; j<n; j++) {
				if(parent1[j]!=j) continue;
				if(p[i][j]==2 || i==j) {
					parent2[i] = j;
					components2.get(j).add(i);
					break;
				}
			}
		}
		int[][] b = new int[n][n];
		for(int i=0; i<n; i++) {
			for(int j=0; j<n; j++) {
				b[i][j] = 0;
			}
		}
		for(int i=0; i<n; i++) {
			ArrayList<Integer> cmp = components1.get(i);
			// impossiblility check for 1s
			for(int j=1; j<cmp.size(); j++) {
				if(!Arrays.equals(p[cmp.get(j)], p[cmp.get(0)])) {
					return 0;
				}
				b[cmp.get(j)][cmp.get(0)] = 1;
				b[cmp.get(0)][cmp.get(j)] = 1;
			}
			// impossibility check for 2s
			cmp = components2.get(i);
			if(cmp.size()==2) {
				return 0;
			}
			if(cmp.size()<2) continue;
			for(int j=0; j<cmp.size(); j++) {
				for(int k=0; k<j; k++) {
					if(p[cmp.get(j)][cmp.get(k)]!=2) {
						return 0;
					}
				}
			}
			for(int j=1; j<cmp.size(); j++) {
				b[cmp.get(j)][cmp.get(j-1)] = 1;
				b[cmp.get(j-1)][cmp.get(j)] = 1;
			}
			b[cmp.get(0)][cmp.get(cmp.size()-1)] = 1;
			b[cmp.get(cmp.size()-1)][cmp.get(0)] = 1;
		}
		for(int i=0; i<n; i++) {
			for(int j=0; j<n; j++) {
				if(p[i][j]==1 && parent1[i]!=parent1[j]) return 0;
				if(p[i][j]==2 && parent2[parent1[i]]!=parent2[parent1[j]]) return 0;
			}
		}
		grader.build(b);
		return 1;
	}
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 97 ms 10124 KB Output is correct
2 Correct 77 ms 9976 KB Output is correct
3 Correct 91 ms 10144 KB Output is correct
4 Correct 83 ms 10156 KB Output is correct
5 Correct 90 ms 10208 KB Output is correct
6 Correct 202 ms 16260 KB Output is correct
7 Correct 476 ms 57184 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 97 ms 10124 KB Output is correct
2 Correct 77 ms 9976 KB Output is correct
3 Correct 91 ms 10144 KB Output is correct
4 Correct 83 ms 10156 KB Output is correct
5 Correct 90 ms 10208 KB Output is correct
6 Correct 202 ms 16260 KB Output is correct
7 Correct 476 ms 57184 KB Output is correct
8 Correct 87 ms 10288 KB Output is correct
9 Correct 79 ms 10232 KB Output is correct
10 Correct 78 ms 10216 KB Output is correct
11 Correct 88 ms 10392 KB Output is correct
12 Correct 190 ms 16352 KB Output is correct
13 Correct 522 ms 60572 KB Output is correct
14 Correct 85 ms 10224 KB Output is correct
15 Correct 82 ms 10308 KB Output is correct
16 Correct 109 ms 11128 KB Output is correct
17 Correct 177 ms 21520 KB Output is correct
18 Correct 84 ms 10172 KB Output is correct
19 Correct 83 ms 10092 KB Output is correct
20 Correct 390 ms 30168 KB Output is correct
21 Correct 486 ms 57208 KB Output is correct
22 Correct 550 ms 60100 KB Output is correct
23 Correct 569 ms 59288 KB Output is correct
24 Correct 486 ms 59968 KB Output is correct
25 Correct 191 ms 22104 KB Output is correct
26 Correct 205 ms 21604 KB Output is correct
27 Correct 548 ms 60528 KB Output is correct
28 Correct 446 ms 57456 KB Output is correct

Subtask #3
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 84 ms 10112 KB Output is correct
2 Correct 82 ms 10228 KB Output is correct
3 Correct 81 ms 10104 KB Output is correct
4 Correct 79 ms 10096 KB Output is correct
5 Correct 85 ms 10156 KB Output is correct
6 Correct 89 ms 10100 KB Output is correct
7 Correct 88 ms 10228 KB Output is correct
8 Correct 202 ms 16140 KB Output is correct
9 Correct 536 ms 60612 KB Output is correct
10 Correct 85 ms 10104 KB Output is correct
11 Correct 84 ms 10356 KB Output is correct
12 Correct 204 ms 16508 KB Output is correct
13 Correct 613 ms 58284 KB Output is correct
14 Correct 86 ms 10344 KB Output is correct
15 Correct 82 ms 9992 KB Output is correct
16 Correct 107 ms 10860 KB Output is correct
17 Correct 197 ms 21500 KB Output is correct
18 Correct 84 ms 10104 KB Output is correct
19 Correct 80 ms 10488 KB Output is correct
20 Correct 80 ms 10136 KB Output is correct
21 Correct 394 ms 25920 KB Output is correct
22 Correct 622 ms 60916 KB Output is correct
23 Correct 532 ms 60428 KB Output is correct
24 Correct 511 ms 59112 KB Output is correct
25 Correct 186 ms 22236 KB Output is correct
26 Correct 202 ms 22268 KB Output is correct
27 Correct 514 ms 57752 KB Output is correct
28 Correct 527 ms 59752 KB Output is correct
29 Correct 197 ms 22536 KB Output is correct

Subtask #4
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 84 ms 10104 KB Output is correct
2 Correct 79 ms 10208 KB Output is correct
3 Correct 82 ms 10236 KB Output is correct
4 Correct 339 ms 25804 KB Output is correct
5 Correct 522 ms 59712 KB Output is correct
6 Correct 507 ms 59920 KB Output is correct
7 Correct 516 ms 60256 KB Output is correct
8 Correct 83 ms 10208 KB Output is correct
9 Correct 379 ms 29040 KB Output is correct
10 Correct 544 ms 59676 KB Output is correct
11 Correct 517 ms 60084 KB Output is correct
12 Correct 524 ms 58680 KB Output is correct
13 Correct 79 ms 10140 KB Output is correct
14 Correct 79 ms 10232 KB Output is correct
15 Correct 103 ms 10024 KB Output is correct
16 Correct 366 ms 26796 KB Output is correct
17 Correct 514 ms 60124 KB Output is correct
18 Correct 503 ms 58476 KB Output is correct
19 Correct 628 ms 60088 KB Output is correct
20 Correct 506 ms 60068 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 97 ms 10124 KB Output is correct
2 Correct 77 ms 9976 KB Output is correct
3 Correct 91 ms 10144 KB Output is correct
4 Correct 83 ms 10156 KB Output is correct
5 Correct 90 ms 10208 KB Output is correct
6 Correct 202 ms 16260 KB Output is correct
7 Correct 476 ms 57184 KB Output is correct
8 Correct 87 ms 10288 KB Output is correct
9 Correct 79 ms 10232 KB Output is correct
10 Correct 78 ms 10216 KB Output is correct
11 Correct 88 ms 10392 KB Output is correct
12 Correct 190 ms 16352 KB Output is correct
13 Correct 522 ms 60572 KB Output is correct
14 Correct 85 ms 10224 KB Output is correct
15 Correct 82 ms 10308 KB Output is correct
16 Correct 109 ms 11128 KB Output is correct
17 Correct 177 ms 21520 KB Output is correct
18 Correct 84 ms 10172 KB Output is correct
19 Correct 83 ms 10092 KB Output is correct
20 Correct 390 ms 30168 KB Output is correct
21 Correct 486 ms 57208 KB Output is correct
22 Correct 550 ms 60100 KB Output is correct
23 Correct 569 ms 59288 KB Output is correct
24 Correct 486 ms 59968 KB Output is correct
25 Correct 191 ms 22104 KB Output is correct
26 Correct 205 ms 21604 KB Output is correct
27 Correct 548 ms 60528 KB Output is correct
28 Correct 446 ms 57456 KB Output is correct
29 Correct 84 ms 10112 KB Output is correct
30 Correct 82 ms 10228 KB Output is correct
31 Correct 81 ms 10104 KB Output is correct
32 Correct 79 ms 10096 KB Output is correct
33 Correct 85 ms 10156 KB Output is correct
34 Correct 89 ms 10100 KB Output is correct
35 Correct 88 ms 10228 KB Output is correct
36 Correct 202 ms 16140 KB Output is correct
37 Correct 536 ms 60612 KB Output is correct
38 Correct 85 ms 10104 KB Output is correct
39 Correct 84 ms 10356 KB Output is correct
40 Correct 204 ms 16508 KB Output is correct
41 Correct 613 ms 58284 KB Output is correct
42 Correct 86 ms 10344 KB Output is correct
43 Correct 82 ms 9992 KB Output is correct
44 Correct 107 ms 10860 KB Output is correct
45 Correct 197 ms 21500 KB Output is correct
46 Correct 84 ms 10104 KB Output is correct
47 Correct 80 ms 10488 KB Output is correct
48 Correct 80 ms 10136 KB Output is correct
49 Correct 394 ms 25920 KB Output is correct
50 Correct 622 ms 60916 KB Output is correct
51 Correct 532 ms 60428 KB Output is correct
52 Correct 511 ms 59112 KB Output is correct
53 Correct 186 ms 22236 KB Output is correct
54 Correct 202 ms 22268 KB Output is correct
55 Correct 514 ms 57752 KB Output is correct
56 Correct 527 ms 59752 KB Output is correct
57 Correct 197 ms 22536 KB Output is correct
58 Correct 77 ms 10228 KB Output is correct
59 Correct 79 ms 10100 KB Output is correct
60 Correct 106 ms 11128 KB Output is correct
61 Correct 186 ms 21804 KB Output is correct
62 Correct 83 ms 10000 KB Output is correct
63 Correct 81 ms 10196 KB Output is correct
64 Correct 80 ms 10004 KB Output is correct
65 Correct 354 ms 27452 KB Output is correct
66 Correct 194 ms 21848 KB Output is correct
67 Correct 175 ms 22000 KB Output is correct
68 Correct 191 ms 22292 KB Output is correct
69 Correct 181 ms 22120 KB Output is correct

Subtask #6
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 97 ms 10124 KB Output is correct
2 Correct 77 ms 9976 KB Output is correct
3 Correct 91 ms 10144 KB Output is correct
4 Correct 83 ms 10156 KB Output is correct
5 Correct 90 ms 10208 KB Output is correct
6 Correct 202 ms 16260 KB Output is correct
7 Correct 476 ms 57184 KB Output is correct
8 Correct 87 ms 10288 KB Output is correct
9 Correct 79 ms 10232 KB Output is correct
10 Correct 78 ms 10216 KB Output is correct
11 Correct 88 ms 10392 KB Output is correct
12 Correct 190 ms 16352 KB Output is correct
13 Correct 522 ms 60572 KB Output is correct
14 Correct 85 ms 10224 KB Output is correct
15 Correct 82 ms 10308 KB Output is correct
16 Correct 109 ms 11128 KB Output is correct
17 Correct 177 ms 21520 KB Output is correct
18 Correct 84 ms 10172 KB Output is correct
19 Correct 83 ms 10092 KB Output is correct
20 Correct 390 ms 30168 KB Output is correct
21 Correct 486 ms 57208 KB Output is correct
22 Correct 550 ms 60100 KB Output is correct
23 Correct 569 ms 59288 KB Output is correct
24 Correct 486 ms 59968 KB Output is correct
25 Correct 191 ms 22104 KB Output is correct
26 Correct 205 ms 21604 KB Output is correct
27 Correct 548 ms 60528 KB Output is correct
28 Correct 446 ms 57456 KB Output is correct
29 Correct 84 ms 10112 KB Output is correct
30 Correct 82 ms 10228 KB Output is correct
31 Correct 81 ms 10104 KB Output is correct
32 Correct 79 ms 10096 KB Output is correct
33 Correct 85 ms 10156 KB Output is correct
34 Correct 89 ms 10100 KB Output is correct
35 Correct 88 ms 10228 KB Output is correct
36 Correct 202 ms 16140 KB Output is correct
37 Correct 536 ms 60612 KB Output is correct
38 Correct 85 ms 10104 KB Output is correct
39 Correct 84 ms 10356 KB Output is correct
40 Correct 204 ms 16508 KB Output is correct
41 Correct 613 ms 58284 KB Output is correct
42 Correct 86 ms 10344 KB Output is correct
43 Correct 82 ms 9992 KB Output is correct
44 Correct 107 ms 10860 KB Output is correct
45 Correct 197 ms 21500 KB Output is correct
46 Correct 84 ms 10104 KB Output is correct
47 Correct 80 ms 10488 KB Output is correct
48 Correct 80 ms 10136 KB Output is correct
49 Correct 394 ms 25920 KB Output is correct
50 Correct 622 ms 60916 KB Output is correct
51 Correct 532 ms 60428 KB Output is correct
52 Correct 511 ms 59112 KB Output is correct
53 Correct 186 ms 22236 KB Output is correct
54 Correct 202 ms 22268 KB Output is correct
55 Correct 514 ms 57752 KB Output is correct
56 Correct 527 ms 59752 KB Output is correct
57 Correct 197 ms 22536 KB Output is correct
58 Correct 84 ms 10104 KB Output is correct
59 Correct 79 ms 10208 KB Output is correct
60 Correct 82 ms 10236 KB Output is correct
61 Correct 339 ms 25804 KB Output is correct
62 Correct 522 ms 59712 KB Output is correct
63 Correct 507 ms 59920 KB Output is correct
64 Correct 516 ms 60256 KB Output is correct
65 Correct 83 ms 10208 KB Output is correct
66 Correct 379 ms 29040 KB Output is correct
67 Correct 544 ms 59676 KB Output is correct
68 Correct 517 ms 60084 KB Output is correct
69 Correct 524 ms 58680 KB Output is correct
70 Correct 79 ms 10140 KB Output is correct
71 Correct 79 ms 10232 KB Output is correct
72 Correct 103 ms 10024 KB Output is correct
73 Correct 366 ms 26796 KB Output is correct
74 Correct 514 ms 60124 KB Output is correct
75 Correct 503 ms 58476 KB Output is correct
76 Correct 628 ms 60088 KB Output is correct
77 Correct 506 ms 60068 KB Output is correct
78 Correct 77 ms 10228 KB Output is correct
79 Correct 79 ms 10100 KB Output is correct
80 Correct 106 ms 11128 KB Output is correct
81 Correct 186 ms 21804 KB Output is correct
82 Correct 83 ms 10000 KB Output is correct
83 Correct 81 ms 10196 KB Output is correct
84 Correct 80 ms 10004 KB Output is correct
85 Correct 354 ms 27452 KB Output is correct
86 Correct 194 ms 21848 KB Output is correct
87 Correct 175 ms 22000 KB Output is correct
88 Correct 191 ms 22292 KB Output is correct
89 Correct 181 ms 22120 KB Output is correct
90 Correct 92 ms 10144 KB Output is correct
91 Correct 78 ms 10100 KB Output is correct
92 Correct 103 ms 10624 KB Output is correct
93 Correct 128 ms 15092 KB Output is correct
94 Correct 78 ms 10240 KB Output is correct
95 Correct 77 ms 10104 KB Output is correct
96 Correct 88 ms 9976 KB Output is correct
97 Correct 117 ms 12172 KB Output is correct
98 Correct 137 ms 15236 KB Output is correct
99 Correct 136 ms 15480 KB Output is correct
100 Correct 145 ms 15480 KB Output is correct
101 Correct 146 ms 16972 KB Output is correct
102 Correct 129 ms 15356 KB Output is correct
103 Correct 141 ms 15304 KB Output is correct
104 Correct 136 ms 15240 KB Output is correct
105 Correct 134 ms 15100 KB Output is correct