oj.uz

Submission #703624

# Submission time Handle Problem Language Result Execution time Memory
703624 2023-02-27T21:09:27 Z bane Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 1250 ms 215312 KB 
#include <bits/stdc++.h>
#define maxn 100010
using namespace std;
const int B = 150;
int n, m, q;
typedef pair<int, int> pi;
vector<int> prv[maxn];
vector<pi> far[maxn];
vector<int> vis(maxn, -1), val(maxn);
vector<int> y(maxn, -1);
 
bool cmp(int x, int y){
	return val[x] > val[y];
}
 
int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cin >> n >> m >> q;
	for (int i = 0; i < m; i ++){
		int x, y;
		cin >> x >> y;
		x --; y --;
		prv[y].push_back(x);
	}
	for (int i = 0; i < n; i ++){
		vector<int> all;
		for (int j = 0; j < (int)prv[i].size(); j ++){
			int x = prv[i][j];
			for (int k = 0; k < far[x].size(); k ++){
				int z = far[x][k].second;
				if (vis[z] != i){
					vis[z] = i;
					all.push_back(z);
					val[z] = far[x][k].first + 1;
				} else{
					val[z] = max(val[z], far[x][k].first + 1);
				}
			}
			if (vis[x] != i){
				vis[x] = i;
				all.push_back(x);
				val[x] = 1;
			}
		}
		all.push_back(i);
		sort(all.begin(), all.end(), cmp);
		for (int j = 0; j < min((int)all.size(), B); j ++){
			far[i].push_back(make_pair(val[all[j]], all[j]));
		}
	}
	while(q --){
		int t; cin >> t; t --;
		int r; cin >> r;
		for (int i = 0; i < r; i ++){
			int p; cin >> p; y[p - 1] = q;
		}
		if (r >= B){
			vector<int> dp(n, -1);
			for (int i = 0; i <= t; i ++){
				if (y[i] != q){
					dp[i] = max(dp[i], 0);
				}
				for (int j = 0; j < (int)prv[i].size(); j ++){
					if (dp[prv[i][j]] != -1) dp[i] = max(dp[i], dp[prv[i][j]] + 1);
				}
			}
			cout << dp[t] << '\n';
		} else{
			for (int i = 0; i < (int)far[t].size(); i ++){
				if (y[far[t][i].second] != q){
					cout << far[t][i].first << '\n';
					goto done;
				}
			}
			cout << -1 << '\n';
			done: continue;
		}
	}
}

Compilation message

bitaro.cpp: In function 'int main()':
bitaro.cpp:30:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |    for (int k = 0; k < far[x].size(); k ++){
      |                    ~~^~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6100 KB Output is correct
2 Correct 3 ms 6100 KB Output is correct
3 Correct 3 ms 6100 KB Output is correct
4 Correct 3 ms 6100 KB Output is correct
5 Correct 5 ms 6612 KB Output is correct
6 Correct 6 ms 6604 KB Output is correct
7 Correct 5 ms 6636 KB Output is correct
8 Correct 11 ms 8072 KB Output is correct
9 Correct 11 ms 8012 KB Output is correct
10 Correct 11 ms 8020 KB Output is correct
11 Correct 10 ms 7892 KB Output is correct
12 Correct 9 ms 7248 KB Output is correct
13 Correct 10 ms 7892 KB Output is correct
14 Correct 10 ms 7276 KB Output is correct
15 Correct 7 ms 6868 KB Output is correct
16 Correct 8 ms 7272 KB Output is correct
17 Correct 9 ms 7508 KB Output is correct
18 Correct 7 ms 6996 KB Output is correct
19 Correct 9 ms 7508 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6100 KB Output is correct
2 Correct 3 ms 6100 KB Output is correct
3 Correct 3 ms 6100 KB Output is correct
4 Correct 3 ms 6100 KB Output is correct
5 Correct 5 ms 6612 KB Output is correct
6 Correct 6 ms 6604 KB Output is correct
7 Correct 5 ms 6636 KB Output is correct
8 Correct 11 ms 8072 KB Output is correct
9 Correct 11 ms 8012 KB Output is correct
10 Correct 11 ms 8020 KB Output is correct
11 Correct 10 ms 7892 KB Output is correct
12 Correct 9 ms 7248 KB Output is correct
13 Correct 10 ms 7892 KB Output is correct
14 Correct 10 ms 7276 KB Output is correct
15 Correct 7 ms 6868 KB Output is correct
16 Correct 8 ms 7272 KB Output is correct
17 Correct 9 ms 7508 KB Output is correct
18 Correct 7 ms 6996 KB Output is correct
19 Correct 9 ms 7508 KB Output is correct
20 Correct 244 ms 10684 KB Output is correct
21 Correct 227 ms 10828 KB Output is correct
22 Correct 241 ms 10700 KB Output is correct
23 Correct 257 ms 10700 KB Output is correct
24 Correct 819 ms 154040 KB Output is correct
25 Correct 849 ms 158472 KB Output is correct
26 Correct 850 ms 158692 KB Output is correct
27 Correct 938 ms 214088 KB Output is correct
28 Correct 927 ms 214056 KB Output is correct
29 Correct 945 ms 214220 KB Output is correct
30 Correct 891 ms 214100 KB Output is correct
31 Correct 955 ms 208596 KB Output is correct
32 Correct 902 ms 213976 KB Output is correct
33 Correct 669 ms 136068 KB Output is correct
34 Correct 693 ms 117460 KB Output is correct
35 Correct 639 ms 135148 KB Output is correct
36 Correct 770 ms 175136 KB Output is correct
37 Correct 834 ms 163112 KB Output is correct
38 Correct 765 ms 175584 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6100 KB Output is correct
2 Correct 3 ms 6100 KB Output is correct
3 Correct 3 ms 6100 KB Output is correct
4 Correct 3 ms 6100 KB Output is correct
5 Correct 5 ms 6612 KB Output is correct
6 Correct 6 ms 6604 KB Output is correct
7 Correct 5 ms 6636 KB Output is correct
8 Correct 11 ms 8072 KB Output is correct
9 Correct 11 ms 8012 KB Output is correct
10 Correct 11 ms 8020 KB Output is correct
11 Correct 10 ms 7892 KB Output is correct
12 Correct 9 ms 7248 KB Output is correct
13 Correct 10 ms 7892 KB Output is correct
14 Correct 10 ms 7276 KB Output is correct
15 Correct 7 ms 6868 KB Output is correct
16 Correct 8 ms 7272 KB Output is correct
17 Correct 9 ms 7508 KB Output is correct
18 Correct 7 ms 6996 KB Output is correct
19 Correct 9 ms 7508 KB Output is correct
20 Correct 244 ms 10684 KB Output is correct
21 Correct 227 ms 10828 KB Output is correct
22 Correct 241 ms 10700 KB Output is correct
23 Correct 257 ms 10700 KB Output is correct
24 Correct 819 ms 154040 KB Output is correct
25 Correct 849 ms 158472 KB Output is correct
26 Correct 850 ms 158692 KB Output is correct
27 Correct 938 ms 214088 KB Output is correct
28 Correct 927 ms 214056 KB Output is correct
29 Correct 945 ms 214220 KB Output is correct
30 Correct 891 ms 214100 KB Output is correct
31 Correct 955 ms 208596 KB Output is correct
32 Correct 902 ms 213976 KB Output is correct
33 Correct 669 ms 136068 KB Output is correct
34 Correct 693 ms 117460 KB Output is correct
35 Correct 639 ms 135148 KB Output is correct
36 Correct 770 ms 175136 KB Output is correct
37 Correct 834 ms 163112 KB Output is correct
38 Correct 765 ms 175584 KB Output is correct
39 Correct 871 ms 156368 KB Output is correct
40 Correct 851 ms 156736 KB Output is correct
41 Correct 834 ms 156908 KB Output is correct
42 Correct 919 ms 157356 KB Output is correct
43 Correct 853 ms 156364 KB Output is correct
44 Correct 257 ms 12068 KB Output is correct
45 Correct 261 ms 11092 KB Output is correct
46 Correct 247 ms 11160 KB Output is correct
47 Correct 236 ms 10912 KB Output is correct
48 Correct 232 ms 10652 KB Output is correct
49 Correct 972 ms 214956 KB Output is correct
50 Correct 957 ms 213752 KB Output is correct
51 Correct 236 ms 11804 KB Output is correct
52 Correct 242 ms 10996 KB Output is correct
53 Correct 813 ms 175380 KB Output is correct
54 Correct 850 ms 163460 KB Output is correct
55 Correct 795 ms 174320 KB Output is correct
56 Correct 853 ms 163244 KB Output is correct
57 Correct 266 ms 11972 KB Output is correct
58 Correct 264 ms 11852 KB Output is correct
59 Correct 244 ms 10928 KB Output is correct
60 Correct 245 ms 10928 KB Output is correct
61 Correct 972 ms 214156 KB Output is correct
62 Correct 827 ms 175608 KB Output is correct
63 Correct 901 ms 162504 KB Output is correct
64 Correct 1182 ms 214156 KB Output is correct
65 Correct 1055 ms 174916 KB Output is correct
66 Correct 1085 ms 163688 KB Output is correct
67 Correct 1250 ms 214144 KB Output is correct
68 Correct 1102 ms 175520 KB Output is correct
69 Correct 1121 ms 161616 KB Output is correct
70 Correct 933 ms 214324 KB Output is correct
71 Correct 796 ms 175392 KB Output is correct
72 Correct 863 ms 163052 KB Output is correct
73 Correct 939 ms 214316 KB Output is correct
74 Correct 817 ms 175352 KB Output is correct
75 Correct 818 ms 163048 KB Output is correct
76 Correct 960 ms 215312 KB Output is correct
77 Correct 1061 ms 214372 KB Output is correct
78 Correct 927 ms 214428 KB Output is correct
79 Correct 277 ms 11936 KB Output is correct
80 Correct 303 ms 11084 KB Output is correct
81 Correct 244 ms 10660 KB Output is correct
82 Correct 927 ms 215272 KB Output is correct
83 Correct 1004 ms 209940 KB Output is correct
84 Correct 1006 ms 214272 KB Output is correct
85 Correct 1066 ms 208768 KB Output is correct
86 Correct 902 ms 214280 KB Output is correct
87 Correct 927 ms 209356 KB Output is correct
88 Correct 265 ms 12048 KB Output is correct
89 Correct 270 ms 11980 KB Output is correct
90 Correct 313 ms 11008 KB Output is correct
91 Correct 313 ms 11004 KB Output is correct
92 Correct 243 ms 10636 KB Output is correct
93 Correct 238 ms 10788 KB Output is correct
94 Correct 669 ms 137140 KB Output is correct
95 Correct 738 ms 117944 KB Output is correct
96 Correct 776 ms 135700 KB Output is correct
97 Correct 836 ms 119164 KB Output is correct
98 Correct 647 ms 136096 KB Output is correct
99 Correct 695 ms 118928 KB Output is correct
100 Correct 290 ms 12056 KB Output is correct
101 Correct 284 ms 11980 KB Output is correct
102 Correct 310 ms 11072 KB Output is correct
103 Correct 307 ms 11036 KB Output is correct
104 Correct 250 ms 10760 KB Output is correct
105 Correct 230 ms 10692 KB Output is correct
106 Correct 811 ms 175760 KB Output is correct
107 Correct 851 ms 164068 KB Output is correct
108 Correct 964 ms 175900 KB Output is correct
109 Correct 947 ms 162992 KB Output is correct
110 Correct 790 ms 176120 KB Output is correct
111 Correct 826 ms 163652 KB Output is correct
112 Correct 268 ms 12072 KB Output is correct
113 Correct 261 ms 12008 KB Output is correct
114 Correct 299 ms 11092 KB Output is correct
115 Correct 315 ms 10996 KB Output is correct
116 Correct 186 ms 10700 KB Output is correct
117 Correct 214 ms 10732 KB Output is correct
118 Correct 931 ms 213696 KB Output is correct
119 Correct 804 ms 175268 KB Output is correct
120 Correct 815 ms 162444 KB Output is correct
121 Correct 946 ms 213764 KB Output is correct
122 Correct 797 ms 174596 KB Output is correct
123 Correct 805 ms 162312 KB Output is correct
124 Correct 956 ms 213768 KB Output is correct
125 Correct 793 ms 175576 KB Output is correct
126 Correct 826 ms 161900 KB Output is correct