oj.uz

Submission #290526

# Submission time Handle Problem Language Result Execution time Memory
290526 2020-09-03T23:44:42 Z wwdd Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1665 ms 214396 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> ii;
typedef pair<ii,int> ti;
typedef vector<ii> vii;
typedef vector<int> vi;
typedef vector<vi> vvi;
// whatever
const int SQ = 200;
const int MN = 100010;
vii go[MN];
vvi g;
int dp[MN];
bitset<MN> bs;
int sad(int u, vi& no) {
	for(auto& it: no) {
		bs.set(it);
	}
	for(int i=0;i<go[u].size();i++) {
		int v = go[u][i].second;
		if(!bs[v]) {
			for(auto& it: no) {
				bs.reset(it);
			}
			return go[u][i].first;
		}
	}
	fill(begin(dp),end(dp),-1e9);
	dp[u] = 0;
	int res = -1;
	for(int i=u;i>=0;i--) {
		for(int j=0;j<g[i].size();j++) {
			int v = g[i][j];
			dp[v] = max(dp[v],dp[i]+1);
		}
		if(!bs[i]) {
			res = max(res,dp[i]);
		}
	}
	for(auto& it: no) {
		bs.reset(it);
	}
	return res;
}
int main() {
	ios::sync_with_stdio(0);cin.tie(0);
	int n,m,q;
	cin >> n >> m >> q;
	g.assign(n,vi());
	for(int i=0;i<m;i++) {
		int a,b;
		cin >> a >> b;
		a--;b--;
		g[b].push_back(a);
	}
	for(int i=0;i<n;i++) {
		priority_queue<ti> bo;
		for(int j=0;j<g[i].size();j++) {
			int u = g[i][j];
			bo.push({{go[u].front().first,0},u});
		}
		while(!bo.empty() && go[i].size() < SQ) {
			ti ol = bo.top();bo.pop();
			int u = ol.second;
			ii co = ol.first;
			int idx = co.second;
			ii ens = go[u][idx];
			ens.first++;
			if(!bs[ens.second]) {
				bs.set(ens.second);
				go[i].push_back(ens);
			}
			while(idx < go[u].size() && bs[go[u][idx].second]) {
				idx++;
			}
			if(idx < go[u].size()) {
				bo.push({{go[u][idx].first,idx},u});
			}
		}
		if(go[i].size() < SQ) {
			go[i].push_back({0,i});
		}
		for(auto& it: go[i]) {
			bs.reset(it.second);
		}
	}
	for(int i=0;i<q;i++) {
		int tr,lo;
		cin >> tr >> lo;
		vi no;
		tr--;
		for(int j=0;j<lo;j++) {
			int t;
			cin >> t;
			t--;
			no.push_back(t);
		}
		cout << sad(tr,no) << '\n';
	}
}

Compilation message

bitaro.cpp: In function 'int sad(int, vi&)':
bitaro.cpp:20:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |  for(int i=0;i<go[u].size();i++) {
      |              ~^~~~~~~~~~~~~
bitaro.cpp:33:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |   for(int j=0;j<g[i].size();j++) {
      |               ~^~~~~~~~~~~~
bitaro.cpp: In function 'int main()':
bitaro.cpp:59:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |   for(int j=0;j<g[i].size();j++) {
      |               ~^~~~~~~~~~~~
bitaro.cpp:74:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |    while(idx < go[u].size() && bs[go[u][idx].second]) {
      |          ~~~~^~~~~~~~~~~~~~
bitaro.cpp:77:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |    if(idx < go[u].size()) {
      |       ~~~~^~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 2 ms 3072 KB Output is correct
3 Correct 2 ms 3072 KB Output is correct
4 Correct 2 ms 3072 KB Output is correct
5 Correct 6 ms 3200 KB Output is correct
6 Correct 6 ms 3200 KB Output is correct
7 Correct 5 ms 3200 KB Output is correct
8 Correct 16 ms 4608 KB Output is correct
9 Correct 14 ms 4608 KB Output is correct
10 Correct 14 ms 4992 KB Output is correct
11 Correct 13 ms 4480 KB Output is correct
12 Correct 9 ms 3840 KB Output is correct
13 Correct 13 ms 4864 KB Output is correct
14 Correct 11 ms 4224 KB Output is correct
15 Correct 7 ms 3328 KB Output is correct
16 Correct 10 ms 3840 KB Output is correct
17 Correct 11 ms 3968 KB Output is correct
18 Correct 8 ms 3584 KB Output is correct
19 Correct 12 ms 4020 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 2 ms 3072 KB Output is correct
3 Correct 2 ms 3072 KB Output is correct
4 Correct 2 ms 3072 KB Output is correct
5 Correct 6 ms 3200 KB Output is correct
6 Correct 6 ms 3200 KB Output is correct
7 Correct 5 ms 3200 KB Output is correct
8 Correct 16 ms 4608 KB Output is correct
9 Correct 14 ms 4608 KB Output is correct
10 Correct 14 ms 4992 KB Output is correct
11 Correct 13 ms 4480 KB Output is correct
12 Correct 9 ms 3840 KB Output is correct
13 Correct 13 ms 4864 KB Output is correct
14 Correct 11 ms 4224 KB Output is correct
15 Correct 7 ms 3328 KB Output is correct
16 Correct 10 ms 3840 KB Output is correct
17 Correct 11 ms 3968 KB Output is correct
18 Correct 8 ms 3584 KB Output is correct
19 Correct 12 ms 4020 KB Output is correct
20 Correct 168 ms 5880 KB Output is correct
21 Correct 125 ms 7288 KB Output is correct
22 Correct 169 ms 7672 KB Output is correct
23 Correct 106 ms 7288 KB Output is correct
24 Correct 1064 ms 153300 KB Output is correct
25 Correct 1081 ms 157540 KB Output is correct
26 Correct 1085 ms 158072 KB Output is correct
27 Correct 1255 ms 212728 KB Output is correct
28 Correct 1248 ms 213116 KB Output is correct
29 Correct 1278 ms 213368 KB Output is correct
30 Correct 1274 ms 212972 KB Output is correct
31 Correct 1271 ms 207604 KB Output is correct
32 Correct 1282 ms 213248 KB Output is correct
33 Correct 913 ms 135032 KB Output is correct
34 Correct 788 ms 116612 KB Output is correct
35 Correct 918 ms 134080 KB Output is correct
36 Correct 1120 ms 174264 KB Output is correct
37 Correct 1036 ms 162056 KB Output is correct
38 Correct 1109 ms 174840 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 2 ms 3072 KB Output is correct
3 Correct 2 ms 3072 KB Output is correct
4 Correct 2 ms 3072 KB Output is correct
5 Correct 6 ms 3200 KB Output is correct
6 Correct 6 ms 3200 KB Output is correct
7 Correct 5 ms 3200 KB Output is correct
8 Correct 16 ms 4608 KB Output is correct
9 Correct 14 ms 4608 KB Output is correct
10 Correct 14 ms 4992 KB Output is correct
11 Correct 13 ms 4480 KB Output is correct
12 Correct 9 ms 3840 KB Output is correct
13 Correct 13 ms 4864 KB Output is correct
14 Correct 11 ms 4224 KB Output is correct
15 Correct 7 ms 3328 KB Output is correct
16 Correct 10 ms 3840 KB Output is correct
17 Correct 11 ms 3968 KB Output is correct
18 Correct 8 ms 3584 KB Output is correct
19 Correct 12 ms 4020 KB Output is correct
20 Correct 168 ms 5880 KB Output is correct
21 Correct 125 ms 7288 KB Output is correct
22 Correct 169 ms 7672 KB Output is correct
23 Correct 106 ms 7288 KB Output is correct
24 Correct 1064 ms 153300 KB Output is correct
25 Correct 1081 ms 157540 KB Output is correct
26 Correct 1085 ms 158072 KB Output is correct
27 Correct 1255 ms 212728 KB Output is correct
28 Correct 1248 ms 213116 KB Output is correct
29 Correct 1278 ms 213368 KB Output is correct
30 Correct 1274 ms 212972 KB Output is correct
31 Correct 1271 ms 207604 KB Output is correct
32 Correct 1282 ms 213248 KB Output is correct
33 Correct 913 ms 135032 KB Output is correct
34 Correct 788 ms 116612 KB Output is correct
35 Correct 918 ms 134080 KB Output is correct
36 Correct 1120 ms 174264 KB Output is correct
37 Correct 1036 ms 162056 KB Output is correct
38 Correct 1109 ms 174840 KB Output is correct
39 Correct 1130 ms 155400 KB Output is correct
40 Correct 1100 ms 155632 KB Output is correct
41 Correct 1089 ms 156152 KB Output is correct
42 Correct 1093 ms 156280 KB Output is correct
43 Correct 1090 ms 155128 KB Output is correct
44 Correct 207 ms 8696 KB Output is correct
45 Correct 184 ms 7800 KB Output is correct
46 Correct 184 ms 7928 KB Output is correct
47 Correct 170 ms 7416 KB Output is correct
48 Correct 177 ms 7292 KB Output is correct
49 Correct 1317 ms 214396 KB Output is correct
50 Correct 1269 ms 213128 KB Output is correct
51 Correct 172 ms 8848 KB Output is correct
52 Correct 141 ms 7928 KB Output is correct
53 Correct 1146 ms 174712 KB Output is correct
54 Correct 1101 ms 162552 KB Output is correct
55 Correct 1115 ms 173440 KB Output is correct
56 Correct 1063 ms 162552 KB Output is correct
57 Correct 209 ms 8952 KB Output is correct
58 Correct 214 ms 8952 KB Output is correct
59 Correct 177 ms 7928 KB Output is correct
60 Correct 179 ms 7928 KB Output is correct
61 Correct 1412 ms 213368 KB Output is correct
62 Correct 1194 ms 174584 KB Output is correct
63 Correct 1113 ms 161688 KB Output is correct
64 Correct 1665 ms 213388 KB Output is correct
65 Correct 1437 ms 173980 KB Output is correct
66 Correct 1063 ms 162808 KB Output is correct
67 Correct 1568 ms 213348 KB Output is correct
68 Correct 1285 ms 174584 KB Output is correct
69 Correct 1033 ms 160248 KB Output is correct
70 Correct 1268 ms 213512 KB Output is correct
71 Correct 1119 ms 174712 KB Output is correct
72 Correct 1053 ms 162296 KB Output is correct
73 Correct 1307 ms 213368 KB Output is correct
74 Correct 1124 ms 174460 KB Output is correct
75 Correct 1087 ms 162296 KB Output is correct
76 Correct 1309 ms 214396 KB Output is correct
77 Correct 1263 ms 213368 KB Output is correct
78 Correct 1262 ms 213220 KB Output is correct
79 Correct 165 ms 8696 KB Output is correct
80 Correct 145 ms 7800 KB Output is correct
81 Correct 131 ms 7288 KB Output is correct
82 Correct 1326 ms 214232 KB Output is correct
83 Correct 1333 ms 208888 KB Output is correct
84 Correct 1263 ms 213116 KB Output is correct
85 Correct 1269 ms 207480 KB Output is correct
86 Correct 1256 ms 213164 KB Output is correct
87 Correct 1276 ms 208300 KB Output is correct
88 Correct 198 ms 8576 KB Output is correct
89 Correct 209 ms 8568 KB Output is correct
90 Correct 173 ms 7672 KB Output is correct
91 Correct 179 ms 7672 KB Output is correct
92 Correct 168 ms 7324 KB Output is correct
93 Correct 177 ms 7416 KB Output is correct
94 Correct 931 ms 136188 KB Output is correct
95 Correct 840 ms 116984 KB Output is correct
96 Correct 876 ms 134520 KB Output is correct
97 Correct 800 ms 117880 KB Output is correct
98 Correct 870 ms 135220 KB Output is correct
99 Correct 783 ms 117548 KB Output is correct
100 Correct 153 ms 8696 KB Output is correct
101 Correct 142 ms 8568 KB Output is correct
102 Correct 131 ms 7672 KB Output is correct
103 Correct 114 ms 7672 KB Output is correct
104 Correct 115 ms 7320 KB Output is correct
105 Correct 109 ms 7416 KB Output is correct
106 Correct 1137 ms 174720 KB Output is correct
107 Correct 1095 ms 163100 KB Output is correct
108 Correct 1093 ms 174584 KB Output is correct
109 Correct 1041 ms 161656 KB Output is correct
110 Correct 1096 ms 174956 KB Output is correct
111 Correct 1058 ms 162480 KB Output is correct
112 Correct 204 ms 8696 KB Output is correct
113 Correct 212 ms 8696 KB Output is correct
114 Correct 179 ms 7800 KB Output is correct
115 Correct 177 ms 7632 KB Output is correct
116 Correct 168 ms 7288 KB Output is correct
117 Correct 175 ms 7288 KB Output is correct
118 Correct 1277 ms 213180 KB Output is correct
119 Correct 1101 ms 174668 KB Output is correct
120 Correct 1049 ms 161784 KB Output is correct
121 Correct 1280 ms 212872 KB Output is correct
122 Correct 1094 ms 174072 KB Output is correct
123 Correct 1047 ms 161272 KB Output is correct
124 Correct 1261 ms 213204 KB Output is correct
125 Correct 1088 ms 174584 KB Output is correct
126 Correct 1032 ms 161016 KB Output is correct