oj.uz

Submission #984036

# Submission time Handle Problem Language Result Execution time Memory
984036 2024-05-16T09:29:04 Z Amaarsaa Bitaro’s Party (JOI18_bitaro) C++14
14 / 100
 224 ms 18796 KB 
#include<bits/stdc++.h>
 
using namespace std;
using ll = int ;
using pll = pair < ll, ll >;
ll used[100004], cant[100004], dp[100004], c[100004];
vector < ll > adj[100004], radj[100004];
vector < pll > good[100003];
int main() {
//	freopen("moocast.in", "r", stdin);
//	freopen("moocast.out", "w", stdout);
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	ll n, m, q, i, ans, x, y, I, I1, i1, t;
 
	cin >> n >> m >> q;
	
	for (i = 1; i <= m; i ++) {
		cin >> x >> y;
		adj[x].push_back(y);
		radj[y].push_back(x);
	}
	for (i = 1; i <= n; i ++) {
		vector < pll > v;
		for ( ll I : radj[i]) {
			i1 = I1 = 0;
			good[i].push_back({0, i});
			used[0] = 1;
			while ( v.size() < 100 && (i1 < good[i].size() || I1 < good[I].size())) {
				if (i1 == good[i].size() || (I1 != good[I].size() && good[I][I1].first + 1 >= good[i][i1].first )) {
					good[I][I1].first ++;
					v.push_back(good[I][I1]);
					used[good[I][I1].second] = 1;
					good[I][I1].first --;
					I1 ++;
				}
				else {
					v.push_back(good[i][i1]);
					used[good[i][i1].second] = 1;
					i1 ++;
				}
				while (i1 < good[i].size() && used[good[i][i1].second]) i1 ++;
				while (I1 < good[I].size() && used[good[I][I1].second]) I1 ++;
				
			}
			good[i].pop_back();
			for ( pll A : good[i]) used[A.second] = 0;
			swap(good[i], v);
			v.clear();
		}	
		
		
		
	}
	while ( q --) {
		cin >> t >> m;
		for ( i = 1; i <= m; i ++) {
			cin >> c[i];
			cant[c[i]] = 1;
		}
		ans = -1;
		if ( m <= 100) {
			for ( pll &A : good[t]) {
				if (!cant[A.second]) {
					ans = A.first;
					break;
				}
			}
			if (!cant[t]) ans = max(ans, int(0));
		}
		else {
			for (i = 1; i <= n; i ++) dp[i] = -1;
			for (i = 1; i <= n; i ++) {
				if ( cant[i] == 1 && dp[i] == -1) continue;
				dp[i] = max(int(0), dp[i]);
				for ( int I : adj[i]) {
					dp[I] = max(dp[I], dp[i] + 1);
				}
			}
			ans = dp[t];
		}
		for (i =1 ; i <= m; i ++) cant[c[i]] = 0;
		cout << ans << endl;
	}
	/*
	for (i = 1; i <= n; i ++) {
		cout << i << " " << good[i].size() << endl;
		for (pll X : good[i]) {
			cout << X.first << " " << X.second << endl;
		}
		cout << endl;
	}
	*/
}

Compilation message

bitaro.cpp: In function 'int main()':
bitaro.cpp:29:34: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |    while ( v.size() < 100 && (i1 < good[i].size() || I1 < good[I].size())) {
      |                               ~~~^~~~~~~~~~~~~~~~
bitaro.cpp:29:57: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |    while ( v.size() < 100 && (i1 < good[i].size() || I1 < good[I].size())) {
      |                                                      ~~~^~~~~~~~~~~~~~~~
bitaro.cpp:30:12: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     if (i1 == good[i].size() || (I1 != good[I].size() && good[I][I1].first + 1 >= good[i][i1].first )) {
      |         ~~~^~~~~~~~~~~~~~~~~
bitaro.cpp:30:37: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     if (i1 == good[i].size() || (I1 != good[I].size() && good[I][I1].first + 1 >= good[i][i1].first )) {
      |                                  ~~~^~~~~~~~~~~~~~~~~
bitaro.cpp:42:15: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     while (i1 < good[i].size() && used[good[i][i1].second]) i1 ++;
      |            ~~~^~~~~~~~~~~~~~~~
bitaro.cpp:43:15: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     while (I1 < good[I].size() && used[good[I][I1].second]) I1 ++;
      |            ~~~^~~~~~~~~~~~~~~~
bitaro.cpp:14:28: warning: unused variable 'I' [-Wunused-variable]
   14 |  ll n, m, q, i, ans, x, y, I, I1, i1, t;
      |                            ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 8792 KB Output is correct
4 Correct 2 ms 8792 KB Output is correct
5 Correct 3 ms 8796 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 2 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 3 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8892 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8792 KB Output is correct
15 Correct 2 ms 8792 KB Output is correct
16 Correct 2 ms 8796 KB Output is correct
17 Correct 2 ms 8796 KB Output is correct
18 Correct 2 ms 8792 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 8792 KB Output is correct
4 Correct 2 ms 8792 KB Output is correct
5 Correct 3 ms 8796 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 2 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 3 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8892 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8792 KB Output is correct
15 Correct 2 ms 8792 KB Output is correct
16 Correct 2 ms 8796 KB Output is correct
17 Correct 2 ms 8796 KB Output is correct
18 Correct 2 ms 8792 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct
20 Correct 27 ms 11152 KB Output is correct
21 Correct 27 ms 11220 KB Output is correct
22 Correct 27 ms 11356 KB Output is correct
23 Correct 27 ms 11356 KB Output is correct
24 Correct 91 ms 17240 KB Output is correct
25 Correct 73 ms 17044 KB Output is correct
26 Correct 68 ms 17140 KB Output is correct
27 Correct 70 ms 18796 KB Output is correct
28 Correct 69 ms 18652 KB Output is correct
29 Correct 68 ms 18752 KB Output is correct
30 Correct 64 ms 18284 KB Output is correct
31 Correct 72 ms 18264 KB Output is correct
32 Correct 68 ms 18260 KB Output is correct
33 Correct 79 ms 17752 KB Output is correct
34 Correct 69 ms 17668 KB Output is correct
35 Correct 85 ms 17836 KB Output is correct
36 Correct 80 ms 18032 KB Output is correct
37 Correct 67 ms 18000 KB Output is correct
38 Correct 96 ms 18000 KB Output is correct

Subtask #3
0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 8792 KB Output is correct
4 Correct 2 ms 8792 KB Output is correct
5 Correct 3 ms 8796 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 2 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 3 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8892 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8792 KB Output is correct
15 Correct 2 ms 8792 KB Output is correct
16 Correct 2 ms 8796 KB Output is correct
17 Correct 2 ms 8796 KB Output is correct
18 Correct 2 ms 8792 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct
20 Correct 27 ms 11152 KB Output is correct
21 Correct 27 ms 11220 KB Output is correct
22 Correct 27 ms 11356 KB Output is correct
23 Correct 27 ms 11356 KB Output is correct
24 Correct 91 ms 17240 KB Output is correct
25 Correct 73 ms 17044 KB Output is correct
26 Correct 68 ms 17140 KB Output is correct
27 Correct 70 ms 18796 KB Output is correct
28 Correct 69 ms 18652 KB Output is correct
29 Correct 68 ms 18752 KB Output is correct
30 Correct 64 ms 18284 KB Output is correct
31 Correct 72 ms 18264 KB Output is correct
32 Correct 68 ms 18260 KB Output is correct
33 Correct 79 ms 17752 KB Output is correct
34 Correct 69 ms 17668 KB Output is correct
35 Correct 85 ms 17836 KB Output is correct
36 Correct 80 ms 18032 KB Output is correct
37 Correct 67 ms 18000 KB Output is correct
38 Correct 96 ms 18000 KB Output is correct
39 Incorrect 224 ms 17712 KB Output isn't correct
40 Halted 0 ms 0 KB -