oj.uz

Submission #639501

# Submission time Handle Problem Language Result Execution time Memory
639501 2022-09-10T09:13:39 Z Moses Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1201 ms 215484 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 7 ms 6636 KB Output is correct
6 Correct 6 ms 6612 KB Output is correct
7 Correct 6 ms 6612 KB Output is correct
8 Correct 12 ms 8056 KB Output is correct
9 Correct 13 ms 8020 KB Output is correct
10 Correct 13 ms 8020 KB Output is correct
11 Correct 12 ms 7952 KB Output is correct
12 Correct 9 ms 7228 KB Output is correct
13 Correct 11 ms 7880 KB Output is correct
14 Correct 8 ms 7248 KB Output is correct
15 Correct 7 ms 6832 KB Output is correct
16 Correct 10 ms 7252 KB Output is correct
17 Correct 9 ms 7508 KB Output is correct
18 Correct 9 ms 7092 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 7 ms 6636 KB Output is correct
6 Correct 6 ms 6612 KB Output is correct
7 Correct 6 ms 6612 KB Output is correct
8 Correct 12 ms 8056 KB Output is correct
9 Correct 13 ms 8020 KB Output is correct
10 Correct 13 ms 8020 KB Output is correct
11 Correct 12 ms 7952 KB Output is correct
12 Correct 9 ms 7228 KB Output is correct
13 Correct 11 ms 7880 KB Output is correct
14 Correct 8 ms 7248 KB Output is correct
15 Correct 7 ms 6832 KB Output is correct
16 Correct 10 ms 7252 KB Output is correct
17 Correct 9 ms 7508 KB Output is correct
18 Correct 9 ms 7092 KB Output is correct
19 Correct 9 ms 7508 KB Output is correct
20 Correct 242 ms 9200 KB Output is correct
21 Correct 242 ms 9108 KB Output is correct
22 Correct 249 ms 9196 KB Output is correct
23 Correct 271 ms 9176 KB Output is correct
24 Correct 830 ms 151628 KB Output is correct
25 Correct 861 ms 155968 KB Output is correct
26 Correct 860 ms 156164 KB Output is correct
27 Correct 919 ms 211572 KB Output is correct
28 Correct 917 ms 211648 KB Output is correct
29 Correct 931 ms 211544 KB Output is correct
30 Correct 879 ms 211392 KB Output is correct
31 Correct 928 ms 206060 KB Output is correct
32 Correct 900 ms 211500 KB Output is correct
33 Correct 647 ms 133416 KB Output is correct
34 Correct 667 ms 114928 KB Output is correct
35 Correct 618 ms 132560 KB Output is correct
36 Correct 767 ms 172568 KB Output is correct
37 Correct 826 ms 160472 KB Output is correct
38 Correct 783 ms 173192 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 7 ms 6636 KB Output is correct
6 Correct 6 ms 6612 KB Output is correct
7 Correct 6 ms 6612 KB Output is correct
8 Correct 12 ms 8056 KB Output is correct
9 Correct 13 ms 8020 KB Output is correct
10 Correct 13 ms 8020 KB Output is correct
11 Correct 12 ms 7952 KB Output is correct
12 Correct 9 ms 7228 KB Output is correct
13 Correct 11 ms 7880 KB Output is correct
14 Correct 8 ms 7248 KB Output is correct
15 Correct 7 ms 6832 KB Output is correct
16 Correct 10 ms 7252 KB Output is correct
17 Correct 9 ms 7508 KB Output is correct
18 Correct 9 ms 7092 KB Output is correct
19 Correct 9 ms 7508 KB Output is correct
20 Correct 242 ms 9200 KB Output is correct
21 Correct 242 ms 9108 KB Output is correct
22 Correct 249 ms 9196 KB Output is correct
23 Correct 271 ms 9176 KB Output is correct
24 Correct 830 ms 151628 KB Output is correct
25 Correct 861 ms 155968 KB Output is correct
26 Correct 860 ms 156164 KB Output is correct
27 Correct 919 ms 211572 KB Output is correct
28 Correct 917 ms 211648 KB Output is correct
29 Correct 931 ms 211544 KB Output is correct
30 Correct 879 ms 211392 KB Output is correct
31 Correct 928 ms 206060 KB Output is correct
32 Correct 900 ms 211500 KB Output is correct
33 Correct 647 ms 133416 KB Output is correct
34 Correct 667 ms 114928 KB Output is correct
35 Correct 618 ms 132560 KB Output is correct
36 Correct 767 ms 172568 KB Output is correct
37 Correct 826 ms 160472 KB Output is correct
38 Correct 783 ms 173192 KB Output is correct
39 Correct 882 ms 152752 KB Output is correct
40 Correct 875 ms 153708 KB Output is correct
41 Correct 830 ms 154048 KB Output is correct
42 Correct 920 ms 154864 KB Output is correct
43 Correct 853 ms 153592 KB Output is correct
44 Correct 266 ms 9568 KB Output is correct
45 Correct 257 ms 9160 KB Output is correct
46 Correct 246 ms 9260 KB Output is correct
47 Correct 275 ms 9232 KB Output is correct
48 Correct 256 ms 9164 KB Output is correct
49 Correct 971 ms 211772 KB Output is correct
50 Correct 970 ms 211276 KB Output is correct
51 Correct 263 ms 9500 KB Output is correct
52 Correct 226 ms 9116 KB Output is correct
53 Correct 815 ms 172052 KB Output is correct
54 Correct 873 ms 160304 KB Output is correct
55 Correct 801 ms 171740 KB Output is correct
56 Correct 847 ms 163184 KB Output is correct
57 Correct 276 ms 11800 KB Output is correct
58 Correct 260 ms 11796 KB Output is correct
59 Correct 245 ms 10964 KB Output is correct
60 Correct 246 ms 11020 KB Output is correct
61 Correct 982 ms 214176 KB Output is correct
62 Correct 837 ms 175552 KB Output is correct
63 Correct 859 ms 162560 KB Output is correct
64 Correct 1147 ms 214180 KB Output is correct
65 Correct 963 ms 174820 KB Output is correct
66 Correct 1016 ms 163756 KB Output is correct
67 Correct 1201 ms 214308 KB Output is correct
68 Correct 1127 ms 175572 KB Output is correct
69 Correct 1150 ms 161628 KB Output is correct
70 Correct 929 ms 214236 KB Output is correct
71 Correct 789 ms 175456 KB Output is correct
72 Correct 867 ms 163152 KB Output is correct
73 Correct 938 ms 214224 KB Output is correct
74 Correct 814 ms 175440 KB Output is correct
75 Correct 824 ms 163028 KB Output is correct
76 Correct 961 ms 215484 KB Output is correct
77 Correct 1080 ms 214348 KB Output is correct
78 Correct 920 ms 214508 KB Output is correct
79 Correct 264 ms 12048 KB Output is correct
80 Correct 294 ms 11020 KB Output is correct
81 Correct 237 ms 10700 KB Output is correct
82 Correct 928 ms 215120 KB Output is correct
83 Correct 994 ms 209816 KB Output is correct
84 Correct 1060 ms 214324 KB Output is correct
85 Correct 1070 ms 208936 KB Output is correct
86 Correct 911 ms 214376 KB Output is correct
87 Correct 962 ms 209328 KB Output is correct
88 Correct 243 ms 11984 KB Output is correct
89 Correct 274 ms 12040 KB Output is correct
90 Correct 308 ms 11340 KB Output is correct
91 Correct 323 ms 11052 KB Output is correct
92 Correct 247 ms 10628 KB Output is correct
93 Correct 252 ms 10680 KB Output is correct
94 Correct 661 ms 137196 KB Output is correct
95 Correct 740 ms 117960 KB Output is correct
96 Correct 785 ms 135768 KB Output is correct
97 Correct 873 ms 119252 KB Output is correct
98 Correct 633 ms 136128 KB Output is correct
99 Correct 701 ms 118776 KB Output is correct
100 Correct 269 ms 12108 KB Output is correct
101 Correct 293 ms 11996 KB Output is correct
102 Correct 302 ms 11232 KB Output is correct
103 Correct 309 ms 11240 KB Output is correct
104 Correct 246 ms 10700 KB Output is correct
105 Correct 265 ms 10760 KB Output is correct
106 Correct 815 ms 175772 KB Output is correct
107 Correct 852 ms 164112 KB Output is correct
108 Correct 942 ms 175944 KB Output is correct
109 Correct 920 ms 162968 KB Output is correct
110 Correct 776 ms 176052 KB Output is correct
111 Correct 828 ms 163712 KB Output is correct
112 Correct 273 ms 12052 KB Output is correct
113 Correct 263 ms 12056 KB Output is correct
114 Correct 292 ms 11212 KB Output is correct
115 Correct 319 ms 11132 KB Output is correct
116 Correct 240 ms 10640 KB Output is correct
117 Correct 239 ms 10696 KB Output is correct
118 Correct 908 ms 213700 KB Output is correct
119 Correct 759 ms 175188 KB Output is correct
120 Correct 799 ms 162492 KB Output is correct
121 Correct 908 ms 213840 KB Output is correct
122 Correct 780 ms 174568 KB Output is correct
123 Correct 789 ms 162156 KB Output is correct
124 Correct 896 ms 213728 KB Output is correct
125 Correct 764 ms 175472 KB Output is correct
126 Correct 786 ms 161904 KB Output is correct