oj.uz

Submission #497792

# Submission time Handle Problem Language Result Execution time Memory
497792 2021-12-23T20:09:31 Z Ziel Nice sequence (IZhO18_sequence) C++11
76 / 100
 2000 ms 66068 KB 
/**
 * LES GREATEABLES BRO TEAM
**/

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
#define sz(x) (int)x.size()
const bool FLAG = true;
void setIO(const string &f = "");

#define int ll
const int N = 1e6 + 156;
int was[N], visited[N];
vector<int> g[N], order;

bool dfs(int v) {
	was[v] = 1;
	for (int to: g[v]) {
		if (!was[to]) {
			if (dfs(to))
				return true;
		} else if (was[to] == 1)
			return true;
	}
	was[v] = 2;
	return false;
}
void dfs2(int v) {
	visited[v] = 1;
	for (int to: g[v]) {
		if (!visited[to])
			dfs2(to);
	}
	order.push_back(v);
}

void solve() {
    int n, m;
    cin >> n >> m;

    int lo = 0, hi = n + m, res = -1;
    while (lo <= hi) {
    	int mid = (lo + hi) / 2;

		for (int i = n; i <= mid; i++)
			g[i].push_back(i - n);
		for (int i = m; i <= mid; i++)
			g[i - m].push_back(i);

		bool have_cycle = false;
		for (int i = 0; i <= mid; i++) {
			if (!was[i] && dfs(i)) {
				have_cycle = true;
				break;
			}
		}
		for (int i = 0; i <= mid; i++) {
			was[i] = 0;
			if (sz(g[i])) g[i].clear();
		}

		if (have_cycle) {
			hi = mid - 1;
		} else {
			lo = mid + 1;
			res = mid;
		}
    }


    cout << res << '\n';
    
    for (int i = n; i <= res; i++)
		g[i].push_back(i - n);
	for (int i = m; i <= res; i++)
		g[i - m].push_back(i);
    for (int i = 0; i <= res; i++) {
    	if (!visited[i])
    		dfs2(i);
    }
    reverse(order.begin(), order.end());
    vector<int> p(sz(order));
    for (int i = 0; i < sz(order); i++) {
    	p[order[i]] = i;
   	}
   	int x = p[0];
   	for (int i = 0; i < sz(p); i++)
   		p[i] -= x;
   	for (int i = 1; i < sz(p); i++)
   		cout << p[i] - p[i - 1] << ' ';

   	order.clear();
   	for (int i = 0; i <= res; i++) {
		was[i] = 0;
		visited[i] = 0;
		g[i].clear();
	}
    cout << '\n';
}
/*
0 2
1 3
3 0

2 1 3 0
*/

signed main() {
    setIO();
    
    int tt = 1;
    if (FLAG) {
    	cin >> tt;
    }
    while (tt--) {
    	solve();
    }
    
    return 0;
}

void setIO(const string &f) {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    if (fopen((f + ".in").c_str(), "r")) {
        freopen((f + ".in").c_str(), "r", stdin);
        freopen((f + ".out").c_str(), "w", stdout);
    }
}

Compilation message

sequence.cpp: In function 'void setIO(const string&)':
sequence.cpp:129:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  129 |         freopen((f + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sequence.cpp:130:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  130 |         freopen((f + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23756 KB Ok
2 Correct 15 ms 23740 KB Ok
3 Correct 14 ms 23784 KB Ok
4 Correct 22 ms 23752 KB Ok
5 Correct 15 ms 23808 KB Ok
6 Correct 14 ms 23756 KB Ok
7 Correct 15 ms 23800 KB Ok
8 Correct 14 ms 23784 KB Ok
9 Correct 16 ms 23756 KB Ok
10 Correct 15 ms 23792 KB Ok
11 Correct 14 ms 23756 KB Ok
12 Correct 14 ms 23796 KB Ok

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23820 KB Ok
2 Correct 32 ms 23776 KB Ok
3 Correct 14 ms 23776 KB Ok
4 Correct 15 ms 23756 KB Ok
5 Correct 14 ms 23756 KB Ok
6 Correct 17 ms 24012 KB Ok
7 Correct 36 ms 25216 KB Ok
8 Correct 28 ms 24400 KB Ok
9 Correct 43 ms 25412 KB Ok
10 Correct 27 ms 24608 KB Ok

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23736 KB Ok
2 Correct 13 ms 23820 KB Ok
3 Correct 13 ms 23756 KB Ok
4 Correct 16 ms 23756 KB Ok
5 Correct 13 ms 23776 KB Ok
6 Correct 16 ms 23808 KB Ok
7 Correct 81 ms 23700 KB Ok
8 Correct 26 ms 23800 KB Ok
9 Correct 40 ms 23736 KB Ok
10 Correct 13 ms 23748 KB Ok
11 Correct 14 ms 23708 KB Ok

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23812 KB Ok
2 Correct 15 ms 23756 KB Ok
3 Correct 16 ms 23812 KB Ok
4 Correct 17 ms 23824 KB Ok
5 Correct 15 ms 23808 KB Ok
6 Correct 473 ms 44692 KB Ok
7 Correct 297 ms 47072 KB Ok
8 Correct 755 ms 50212 KB Ok
9 Correct 575 ms 48464 KB Ok
10 Correct 288 ms 38164 KB Ok
11 Correct 571 ms 50160 KB Ok

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23756 KB Ok
2 Correct 15 ms 23740 KB Ok
3 Correct 14 ms 23784 KB Ok
4 Correct 22 ms 23752 KB Ok
5 Correct 15 ms 23808 KB Ok
6 Correct 14 ms 23756 KB Ok
7 Correct 15 ms 23800 KB Ok
8 Correct 14 ms 23784 KB Ok
9 Correct 16 ms 23756 KB Ok
10 Correct 15 ms 23792 KB Ok
11 Correct 14 ms 23756 KB Ok
12 Correct 14 ms 23796 KB Ok
13 Correct 15 ms 23736 KB Ok
14 Correct 13 ms 23820 KB Ok
15 Correct 13 ms 23756 KB Ok
16 Correct 16 ms 23756 KB Ok
17 Correct 13 ms 23776 KB Ok
18 Correct 16 ms 23808 KB Ok
19 Correct 81 ms 23700 KB Ok
20 Correct 26 ms 23800 KB Ok
21 Correct 40 ms 23736 KB Ok
22 Correct 13 ms 23748 KB Ok
23 Correct 14 ms 23708 KB Ok
24 Correct 17 ms 23940 KB Ok
25 Correct 42 ms 23956 KB Ok
26 Correct 21 ms 24048 KB Ok
27 Correct 15 ms 24012 KB Ok
28 Correct 16 ms 24036 KB Ok
29 Correct 16 ms 24024 KB Ok
30 Correct 18 ms 23960 KB Ok
31 Correct 23 ms 24088 KB Ok
32 Correct 21 ms 23932 KB Ok
33 Correct 17 ms 24068 KB Ok
34 Correct 28 ms 24288 KB Ok
35 Correct 23 ms 24360 KB Ok
36 Correct 22 ms 24316 KB Ok
37 Correct 20 ms 24396 KB Ok
38 Correct 23 ms 24388 KB Ok
39 Correct 23 ms 24304 KB Ok
40 Correct 23 ms 24388 KB Ok
41 Correct 90 ms 24388 KB Ok
42 Correct 24 ms 24316 KB Ok
43 Correct 21 ms 24396 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23756 KB Ok
2 Correct 15 ms 23740 KB Ok
3 Correct 14 ms 23784 KB Ok
4 Correct 22 ms 23752 KB Ok
5 Correct 15 ms 23808 KB Ok
6 Correct 14 ms 23756 KB Ok
7 Correct 15 ms 23800 KB Ok
8 Correct 14 ms 23784 KB Ok
9 Correct 16 ms 23756 KB Ok
10 Correct 15 ms 23792 KB Ok
11 Correct 14 ms 23756 KB Ok
12 Correct 14 ms 23796 KB Ok
13 Correct 16 ms 23820 KB Ok
14 Correct 32 ms 23776 KB Ok
15 Correct 14 ms 23776 KB Ok
16 Correct 15 ms 23756 KB Ok
17 Correct 14 ms 23756 KB Ok
18 Correct 17 ms 24012 KB Ok
19 Correct 36 ms 25216 KB Ok
20 Correct 28 ms 24400 KB Ok
21 Correct 43 ms 25412 KB Ok
22 Correct 27 ms 24608 KB Ok
23 Correct 15 ms 23736 KB Ok
24 Correct 13 ms 23820 KB Ok
25 Correct 13 ms 23756 KB Ok
26 Correct 16 ms 23756 KB Ok
27 Correct 13 ms 23776 KB Ok
28 Correct 16 ms 23808 KB Ok
29 Correct 81 ms 23700 KB Ok
30 Correct 26 ms 23800 KB Ok
31 Correct 40 ms 23736 KB Ok
32 Correct 13 ms 23748 KB Ok
33 Correct 14 ms 23708 KB Ok
34 Correct 17 ms 23940 KB Ok
35 Correct 42 ms 23956 KB Ok
36 Correct 21 ms 24048 KB Ok
37 Correct 15 ms 24012 KB Ok
38 Correct 16 ms 24036 KB Ok
39 Correct 16 ms 24024 KB Ok
40 Correct 18 ms 23960 KB Ok
41 Correct 23 ms 24088 KB Ok
42 Correct 21 ms 23932 KB Ok
43 Correct 17 ms 24068 KB Ok
44 Correct 28 ms 24288 KB Ok
45 Correct 23 ms 24360 KB Ok
46 Correct 22 ms 24316 KB Ok
47 Correct 20 ms 24396 KB Ok
48 Correct 23 ms 24388 KB Ok
49 Correct 23 ms 24304 KB Ok
50 Correct 23 ms 24388 KB Ok
51 Correct 90 ms 24388 KB Ok
52 Correct 24 ms 24316 KB Ok
53 Correct 21 ms 24396 KB Ok
54 Correct 174 ms 31624 KB Ok
55 Correct 192 ms 32080 KB Ok
56 Correct 179 ms 32180 KB Ok
57 Correct 153 ms 30852 KB Ok
58 Correct 185 ms 31916 KB Ok
59 Correct 239 ms 31412 KB Ok
60 Correct 188 ms 30848 KB Ok
61 Correct 150 ms 31296 KB Ok
62 Correct 240 ms 32352 KB Ok
63 Correct 178 ms 31140 KB Ok
64 Correct 231 ms 31968 KB Ok
65 Correct 212 ms 31920 KB Ok
66 Correct 184 ms 31484 KB Ok
67 Correct 144 ms 31172 KB Ok
68 Correct 180 ms 31652 KB Ok
69 Correct 1080 ms 40840 KB Ok
70 Correct 1002 ms 41288 KB Ok
71 Correct 944 ms 40844 KB Ok
72 Correct 866 ms 40792 KB Ok
73 Correct 1057 ms 41076 KB Ok
74 Correct 979 ms 40740 KB Ok
75 Correct 883 ms 40712 KB Ok
76 Correct 1012 ms 41008 KB Ok
77 Correct 925 ms 40748 KB Ok
78 Correct 1190 ms 40848 KB Ok
79 Correct 873 ms 41208 KB Ok
80 Correct 909 ms 40952 KB Ok
81 Correct 927 ms 41196 KB Ok
82 Correct 997 ms 40880 KB Ok
83 Correct 818 ms 40928 KB Ok

Subtask #7
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23756 KB Ok
2 Correct 15 ms 23740 KB Ok
3 Correct 14 ms 23784 KB Ok
4 Correct 22 ms 23752 KB Ok
5 Correct 15 ms 23808 KB Ok
6 Correct 14 ms 23756 KB Ok
7 Correct 15 ms 23800 KB Ok
8 Correct 14 ms 23784 KB Ok
9 Correct 16 ms 23756 KB Ok
10 Correct 15 ms 23792 KB Ok
11 Correct 14 ms 23756 KB Ok
12 Correct 14 ms 23796 KB Ok
13 Correct 16 ms 23820 KB Ok
14 Correct 32 ms 23776 KB Ok
15 Correct 14 ms 23776 KB Ok
16 Correct 15 ms 23756 KB Ok
17 Correct 14 ms 23756 KB Ok
18 Correct 17 ms 24012 KB Ok
19 Correct 36 ms 25216 KB Ok
20 Correct 28 ms 24400 KB Ok
21 Correct 43 ms 25412 KB Ok
22 Correct 27 ms 24608 KB Ok
23 Correct 15 ms 23736 KB Ok
24 Correct 13 ms 23820 KB Ok
25 Correct 13 ms 23756 KB Ok
26 Correct 16 ms 23756 KB Ok
27 Correct 13 ms 23776 KB Ok
28 Correct 16 ms 23808 KB Ok
29 Correct 81 ms 23700 KB Ok
30 Correct 26 ms 23800 KB Ok
31 Correct 40 ms 23736 KB Ok
32 Correct 13 ms 23748 KB Ok
33 Correct 14 ms 23708 KB Ok
34 Correct 16 ms 23812 KB Ok
35 Correct 15 ms 23756 KB Ok
36 Correct 16 ms 23812 KB Ok
37 Correct 17 ms 23824 KB Ok
38 Correct 15 ms 23808 KB Ok
39 Correct 473 ms 44692 KB Ok
40 Correct 297 ms 47072 KB Ok
41 Correct 755 ms 50212 KB Ok
42 Correct 575 ms 48464 KB Ok
43 Correct 288 ms 38164 KB Ok
44 Correct 571 ms 50160 KB Ok
45 Correct 17 ms 23940 KB Ok
46 Correct 42 ms 23956 KB Ok
47 Correct 21 ms 24048 KB Ok
48 Correct 15 ms 24012 KB Ok
49 Correct 16 ms 24036 KB Ok
50 Correct 16 ms 24024 KB Ok
51 Correct 18 ms 23960 KB Ok
52 Correct 23 ms 24088 KB Ok
53 Correct 21 ms 23932 KB Ok
54 Correct 17 ms 24068 KB Ok
55 Correct 28 ms 24288 KB Ok
56 Correct 23 ms 24360 KB Ok
57 Correct 22 ms 24316 KB Ok
58 Correct 20 ms 24396 KB Ok
59 Correct 23 ms 24388 KB Ok
60 Correct 23 ms 24304 KB Ok
61 Correct 23 ms 24388 KB Ok
62 Correct 90 ms 24388 KB Ok
63 Correct 24 ms 24316 KB Ok
64 Correct 21 ms 24396 KB Ok
65 Correct 174 ms 31624 KB Ok
66 Correct 192 ms 32080 KB Ok
67 Correct 179 ms 32180 KB Ok
68 Correct 153 ms 30852 KB Ok
69 Correct 185 ms 31916 KB Ok
70 Correct 239 ms 31412 KB Ok
71 Correct 188 ms 30848 KB Ok
72 Correct 150 ms 31296 KB Ok
73 Correct 240 ms 32352 KB Ok
74 Correct 178 ms 31140 KB Ok
75 Correct 231 ms 31968 KB Ok
76 Correct 212 ms 31920 KB Ok
77 Correct 184 ms 31484 KB Ok
78 Correct 144 ms 31172 KB Ok
79 Correct 180 ms 31652 KB Ok
80 Correct 1080 ms 40840 KB Ok
81 Correct 1002 ms 41288 KB Ok
82 Correct 944 ms 40844 KB Ok
83 Correct 866 ms 40792 KB Ok
84 Correct 1057 ms 41076 KB Ok
85 Correct 979 ms 40740 KB Ok
86 Correct 883 ms 40712 KB Ok
87 Correct 1012 ms 41008 KB Ok
88 Correct 925 ms 40748 KB Ok
89 Correct 1190 ms 40848 KB Ok
90 Correct 873 ms 41208 KB Ok
91 Correct 909 ms 40952 KB Ok
92 Correct 927 ms 41196 KB Ok
93 Correct 997 ms 40880 KB Ok
94 Correct 818 ms 40928 KB Ok
95 Correct 520 ms 44400 KB Ok
96 Correct 792 ms 55188 KB Ok
97 Correct 707 ms 49300 KB Ok
98 Correct 485 ms 48436 KB Ok
99 Correct 572 ms 48216 KB Ok
100 Correct 650 ms 48336 KB Ok
101 Correct 656 ms 51424 KB Ok
102 Correct 679 ms 49744 KB Ok
103 Correct 652 ms 51088 KB Ok
104 Correct 787 ms 52760 KB Ok
105 Correct 783 ms 55980 KB Ok
106 Correct 630 ms 52960 KB Ok
107 Correct 739 ms 52456 KB Ok
108 Correct 804 ms 54620 KB Ok
109 Correct 625 ms 54620 KB Ok
110 Execution timed out 2092 ms 66068 KB Time limit exceeded
111 Halted 0 ms 0 KB -