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답안 #603991

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
603991 2022-07-24T14:39:29 Z gagik_2007 슈퍼트리 잇기 (IOI20_supertrees) C++17
100 / 100
 211 ms 26400 KB 
#include "supertrees.h"
#include <iostream>
#include <vector>
#include <cmath>
#include <set>
#include <map>
#include <string>
using namespace std;

typedef long long ll;
typedef long double ld;

ll n, k;
vector<vector<int>>a, d;
vector<int>c, fst, lst, gic;
vector<bool>used, kagic;
vector<bool>mej;
const int INF = 1e9 + 7;

int construct(vector<vector<int>> p) {
	n = p.size();
	a = p;
	c.resize(n, INF);
	fst.resize(n, -1);
	lst.resize(n, -1);
	gic.resize(n, INF);
	d.resize(n);
	for (int i = 0; i < n; i++) {
		d[i].resize(n, 0);
	}
	used.resize(n, false);
	mej.resize(n, true);
	kagic.resize(n, false);
	bool ent1 = true;
	bool ent2 = true;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			if (p[i][j] == 3)return 0;
			if (p[i][j] != 0 && p[i][j] != 1) {
				ent1 = false;
			}
			if (i != j && (p[i][j] != 0 && p[i][j] != 2)) {
				ent2 = false;
			}
		}
	}
	int cur = 0;
	for (int v = 0; v < n; v++) {
		if (c[v] == INF) {
			c[v] = cur++;
		}
		for (int to = 0; to < n; to++) {
			if (p[v][to] == 2 || p[v][to] == 1) {
				if (c[to] != INF && c[to] != c[v]) {
					return 0;
				}
				c[to] = c[v];
			}
			else if (p[v][to] == 0) {
				if (c[to] == c[v])return 0;
			}
		}
	}
	for (int v = 0; v < n; v++) {
		for (int to = 0; to < n; to++) {
			if (to != v && p[v][to] == 1) {
				mej[v] = false;
				break;
			}
		}
	}
	for (int v = 0; v < n; v++) {
		if (mej[v]) {
			//cout << "Cikli mej a: " << v << endl;
			used[v] = true;
			if (fst[c[v]] == -1) {
				fst[c[v]] = v;
			}
			lst[c[v]] = v;
			for (int to = v + 1; to < n; to++) {
				if (c[to] == c[v] && mej[to]) {
					d[v][to] = d[to][v] = 1;
					//cout << "Kpan1: " << v << " " << to << endl;
					break;
				}
			}
		}
	}
	int curgic = 0;
	for (int v = 0; v < n; v++) {
		if (!used[v]) {
			if (gic[v] == INF) {
				gic[v] = curgic++;
			}
			kagic[c[v]] = true;
			for (int to = 0; to < n; to++) {
				if (p[v][to] == 1) {
					if (gic[to] != INF && gic[to] != gic[v]) {
						return 0;
					}
					gic[to] = gic[v];
				}
				else if (p[v][to] == 2 && gic[to] == gic[v]) {
					return 0;
				}
			}
		}
	}
	for (int v = 0; v < n; v++) {
		if (!used[v]) {
			bool ok = false;
			for (int to = v + 1; to < n; to++) {
				if (c[to] == c[v] && gic[to] == gic[v]) {
					d[v][to] = d[to][v] = 1;
					//cout << "Kpan2: " << v << " " << to << endl;
					ok = true;
					break;
				}
			}
			if (!ok) {
				//cout << "Verjiny " << c[v] << " guyni " << gic[v] << " toxi: " << v << endl;
				int to = fst[c[v]];
				if (to != v && to != -1) {
					if (d[to][v] == 1)return 0;
					d[to][v] = d[v][to] = 1;
					//cout << "Kpan3: " << v << " " << to << endl;
				}
				if (lst[c[v]] == -1) {
					lst[c[v]] = v;
				}
				fst[c[v]] = v;
			}
			////cout << v << endl;
		}
	}
	for (int i = 0; i < n; i++) {
		if (fst[i] == lst[i])continue;
		if (d[fst[i]][lst[i]])return 0;
		d[fst[i]][lst[i]] = d[lst[i]][fst[i]] = 1;
	}
	//return 1;
	//cout << "3: " << c[3] << " " << gic[3] << " " << used[3] << endl;
	build(d);
	return 1;
}

/*
4
1 1 2 2
1 1 2 2
2 2 1 2
2 2 2 1

6 
1 1 2 2 2 2 
1 1 2 2 2 2 
2 2 1 2 2 1 
2 2 2 1 1 2 
2 2 2 1 1 2 
2 2 1 2 2 1
*/

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:34:7: warning: variable 'ent1' set but not used [-Wunused-but-set-variable]
   34 |  bool ent1 = true;
      |       ^~~~
supertrees.cpp:35:7: warning: variable 'ent2' set but not used [-Wunused-but-set-variable]
   35 |  bool ent2 = true;
      |       ^~~~

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 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 11 ms 1364 KB Output is correct
7 Correct 171 ms 26096 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 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 11 ms 1364 KB Output is correct
7 Correct 171 ms 26096 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 10 ms 1364 KB Output is correct
13 Correct 188 ms 26156 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 102 ms 16132 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 1 ms 300 KB Output is correct
20 Correct 42 ms 6856 KB Output is correct
21 Correct 202 ms 26196 KB Output is correct
22 Correct 175 ms 26120 KB Output is correct
23 Correct 180 ms 26124 KB Output is correct
24 Correct 182 ms 26116 KB Output is correct
25 Correct 74 ms 16204 KB Output is correct
26 Correct 76 ms 16160 KB Output is correct
27 Correct 175 ms 26092 KB Output is correct
28 Correct 208 ms 26204 KB Output is correct

Subtask #3
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 292 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 8 ms 1436 KB Output is correct
9 Correct 197 ms 26060 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1364 KB Output is correct
13 Correct 175 ms 26044 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 83 ms 16140 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 308 KB Output is correct
20 Correct 1 ms 300 KB Output is correct
21 Correct 44 ms 6792 KB Output is correct
22 Correct 195 ms 26148 KB Output is correct
23 Correct 166 ms 26080 KB Output is correct
24 Correct 176 ms 26124 KB Output is correct
25 Correct 72 ms 16132 KB Output is correct
26 Correct 73 ms 16140 KB Output is correct
27 Correct 173 ms 26108 KB Output is correct
28 Correct 172 ms 26120 KB Output is correct
29 Correct 73 ms 16132 KB Output is correct

Subtask #4
35.0 / 35.0

# 결과 실행 시간 메모리 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 44 ms 6816 KB Output is correct
5 Correct 180 ms 26096 KB Output is correct
6 Correct 165 ms 26116 KB Output is correct
7 Correct 192 ms 26060 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 43 ms 6812 KB Output is correct
10 Correct 169 ms 26112 KB Output is correct
11 Correct 165 ms 26016 KB Output is correct
12 Correct 184 ms 26128 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 44 ms 6780 KB Output is correct
17 Correct 211 ms 26400 KB Output is correct
18 Correct 169 ms 26372 KB Output is correct
19 Correct 181 ms 26296 KB Output is correct
20 Correct 166 ms 26296 KB Output is correct

Subtask #5
21.0 / 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 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 11 ms 1364 KB Output is correct
7 Correct 171 ms 26096 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 10 ms 1364 KB Output is correct
13 Correct 188 ms 26156 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 102 ms 16132 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 1 ms 300 KB Output is correct
20 Correct 42 ms 6856 KB Output is correct
21 Correct 202 ms 26196 KB Output is correct
22 Correct 175 ms 26120 KB Output is correct
23 Correct 180 ms 26124 KB Output is correct
24 Correct 182 ms 26116 KB Output is correct
25 Correct 74 ms 16204 KB Output is correct
26 Correct 76 ms 16160 KB Output is correct
27 Correct 175 ms 26092 KB Output is correct
28 Correct 208 ms 26204 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 292 KB Output is correct
34 Correct 1 ms 300 KB Output is correct
35 Correct 1 ms 300 KB Output is correct
36 Correct 8 ms 1436 KB Output is correct
37 Correct 197 ms 26060 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1364 KB Output is correct
41 Correct 175 ms 26044 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 4 ms 980 KB Output is correct
45 Correct 83 ms 16140 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 308 KB Output is correct
48 Correct 1 ms 300 KB Output is correct
49 Correct 44 ms 6792 KB Output is correct
50 Correct 195 ms 26148 KB Output is correct
51 Correct 166 ms 26080 KB Output is correct
52 Correct 176 ms 26124 KB Output is correct
53 Correct 72 ms 16132 KB Output is correct
54 Correct 73 ms 16140 KB Output is correct
55 Correct 173 ms 26108 KB Output is correct
56 Correct 172 ms 26120 KB Output is correct
57 Correct 73 ms 16132 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 296 KB Output is correct
60 Correct 4 ms 920 KB Output is correct
61 Correct 82 ms 16132 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 44 ms 6784 KB Output is correct
66 Correct 76 ms 16468 KB Output is correct
67 Correct 76 ms 16436 KB Output is correct
68 Correct 80 ms 16388 KB Output is correct
69 Correct 85 ms 16384 KB Output is correct

Subtask #6
4.0 / 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 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 11 ms 1364 KB Output is correct
7 Correct 171 ms 26096 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 10 ms 1364 KB Output is correct
13 Correct 188 ms 26156 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 102 ms 16132 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 1 ms 300 KB Output is correct
20 Correct 42 ms 6856 KB Output is correct
21 Correct 202 ms 26196 KB Output is correct
22 Correct 175 ms 26120 KB Output is correct
23 Correct 180 ms 26124 KB Output is correct
24 Correct 182 ms 26116 KB Output is correct
25 Correct 74 ms 16204 KB Output is correct
26 Correct 76 ms 16160 KB Output is correct
27 Correct 175 ms 26092 KB Output is correct
28 Correct 208 ms 26204 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 292 KB Output is correct
34 Correct 1 ms 300 KB Output is correct
35 Correct 1 ms 300 KB Output is correct
36 Correct 8 ms 1436 KB Output is correct
37 Correct 197 ms 26060 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1364 KB Output is correct
41 Correct 175 ms 26044 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 4 ms 980 KB Output is correct
45 Correct 83 ms 16140 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 308 KB Output is correct
48 Correct 1 ms 300 KB Output is correct
49 Correct 44 ms 6792 KB Output is correct
50 Correct 195 ms 26148 KB Output is correct
51 Correct 166 ms 26080 KB Output is correct
52 Correct 176 ms 26124 KB Output is correct
53 Correct 72 ms 16132 KB Output is correct
54 Correct 73 ms 16140 KB Output is correct
55 Correct 173 ms 26108 KB Output is correct
56 Correct 172 ms 26120 KB Output is correct
57 Correct 73 ms 16132 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 44 ms 6816 KB Output is correct
62 Correct 180 ms 26096 KB Output is correct
63 Correct 165 ms 26116 KB Output is correct
64 Correct 192 ms 26060 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 43 ms 6812 KB Output is correct
67 Correct 169 ms 26112 KB Output is correct
68 Correct 165 ms 26016 KB Output is correct
69 Correct 184 ms 26128 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 1 ms 212 KB Output is correct
73 Correct 44 ms 6780 KB Output is correct
74 Correct 211 ms 26400 KB Output is correct
75 Correct 169 ms 26372 KB Output is correct
76 Correct 181 ms 26296 KB Output is correct
77 Correct 166 ms 26296 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 0 ms 296 KB Output is correct
80 Correct 4 ms 920 KB Output is correct
81 Correct 82 ms 16132 KB Output is correct
82 Correct 1 ms 212 KB Output is correct
83 Correct 0 ms 212 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 44 ms 6784 KB Output is correct
86 Correct 76 ms 16468 KB Output is correct
87 Correct 76 ms 16436 KB Output is correct
88 Correct 80 ms 16388 KB Output is correct
89 Correct 85 ms 16384 KB Output is correct
90 Correct 0 ms 296 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 4 ms 980 KB Output is correct
93 Correct 77 ms 16388 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Correct 1 ms 212 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 22 ms 4556 KB Output is correct
98 Correct 78 ms 16472 KB Output is correct
99 Correct 73 ms 16388 KB Output is correct
100 Correct 70 ms 16400 KB Output is correct
101 Correct 69 ms 16404 KB Output is correct
102 Correct 69 ms 16388 KB Output is correct
103 Correct 74 ms 16392 KB Output is correct
104 Correct 75 ms 16400 KB Output is correct
105 Correct 91 ms 16480 KB Output is correct