oj.uz

답안 #984040

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
984040 2024-05-16T09:30:38 Z Amaarsaa Bitaro’s Party (JOI18_bitaro) C++14
14 / 100
 209 ms 20052 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});
			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);
		}	
		
		
		
	}
	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:28:34: 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]
   28 |    while ( v.size() < 100 && (i1 < good[i].size() || I1 < good[I].size())) {
      |                               ~~~^~~~~~~~~~~~~~~~
bitaro.cpp:28:57: 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]
   28 |    while ( v.size() < 100 && (i1 < good[i].size() || I1 < good[I].size())) {
      |                                                      ~~~^~~~~~~~~~~~~~~~
bitaro.cpp:29:12: 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]
   29 |     if (i1 == good[i].size() || (I1 != good[I].size() && good[I][I1].first + 1 >= good[i][i1].first )) {
      |         ~~~^~~~~~~~~~~~~~~~~
bitaro.cpp:29:37: 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]
   29 |     if (i1 == good[i].size() || (I1 != good[I].size() && good[I][I1].first + 1 >= good[i][i1].first )) {
      |                                  ~~~^~~~~~~~~~~~~~~~~
bitaro.cpp:41:15: 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]
   41 |     while (i1 < good[i].size() && used[good[i][i1].second]) i1 ++;
      |            ~~~^~~~~~~~~~~~~~~~
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: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

# 결과 실행 시간 메모리 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 9048 KB Output is correct
5 Correct 3 ms 8796 KB Output is correct
6 Correct 3 ms 8796 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 8796 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 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8816 KB Output is correct
15 Correct 2 ms 8792 KB Output is correct
16 Correct 3 ms 8792 KB Output is correct
17 Correct 2 ms 8796 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 3 ms 8936 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 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 9048 KB Output is correct
5 Correct 3 ms 8796 KB Output is correct
6 Correct 3 ms 8796 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 8796 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 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8816 KB Output is correct
15 Correct 2 ms 8792 KB Output is correct
16 Correct 3 ms 8792 KB Output is correct
17 Correct 2 ms 8796 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 3 ms 8936 KB Output is correct
20 Correct 37 ms 12044 KB Output is correct
21 Correct 37 ms 12436 KB Output is correct
22 Correct 38 ms 12120 KB Output is correct
23 Correct 37 ms 12120 KB Output is correct
24 Correct 73 ms 17404 KB Output is correct
25 Correct 78 ms 17748 KB Output is correct
26 Correct 73 ms 17444 KB Output is correct
27 Correct 69 ms 18772 KB Output is correct
28 Correct 69 ms 18860 KB Output is correct
29 Correct 67 ms 18768 KB Output is correct
30 Correct 67 ms 18436 KB Output is correct
31 Correct 71 ms 18540 KB Output is correct
32 Correct 73 ms 18260 KB Output is correct
33 Correct 90 ms 20052 KB Output is correct
34 Correct 76 ms 19508 KB Output is correct
35 Correct 79 ms 20052 KB Output is correct
36 Correct 74 ms 18512 KB Output is correct
37 Correct 84 ms 18828 KB Output is correct
38 Correct 69 ms 18516 KB Output is correct

Subtask #3
0 / 86.0

# 결과 실행 시간 메모리 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 9048 KB Output is correct
5 Correct 3 ms 8796 KB Output is correct
6 Correct 3 ms 8796 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 8796 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 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8816 KB Output is correct
15 Correct 2 ms 8792 KB Output is correct
16 Correct 3 ms 8792 KB Output is correct
17 Correct 2 ms 8796 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 3 ms 8936 KB Output is correct
20 Correct 37 ms 12044 KB Output is correct
21 Correct 37 ms 12436 KB Output is correct
22 Correct 38 ms 12120 KB Output is correct
23 Correct 37 ms 12120 KB Output is correct
24 Correct 73 ms 17404 KB Output is correct
25 Correct 78 ms 17748 KB Output is correct
26 Correct 73 ms 17444 KB Output is correct
27 Correct 69 ms 18772 KB Output is correct
28 Correct 69 ms 18860 KB Output is correct
29 Correct 67 ms 18768 KB Output is correct
30 Correct 67 ms 18436 KB Output is correct
31 Correct 71 ms 18540 KB Output is correct
32 Correct 73 ms 18260 KB Output is correct
33 Correct 90 ms 20052 KB Output is correct
34 Correct 76 ms 19508 KB Output is correct
35 Correct 79 ms 20052 KB Output is correct
36 Correct 74 ms 18512 KB Output is correct
37 Correct 84 ms 18828 KB Output is correct
38 Correct 69 ms 18516 KB Output is correct
39 Incorrect 209 ms 18000 KB Output isn't correct
40 Halted 0 ms 0 KB -