oj.uz

Submission #743241

# Submission time Handle Problem Language Result Execution time Memory
743241 2023-05-17T09:07:30 Z Azther0z Bitaro’s Party (JOI18_bitaro) C++11
100 / 100
 1271 ms 215080 KB 
#include <bits/stdc++.h>
using namespace std;
const int B=150;
vector<vector<int>> adjl(100001);
vector<vector<pair<int,int>>> far(100001);
vector<int> visited(100001,0),val(100001,0);
bitset<100001> busy;
bool cmp(int x,int y)
{
	return val[x]>val[y];
}
int main()
{
	int n,m,q;
	scanf("%d%d%d",&n,&m,&q);
	while(m--)
	{
		int a,b;
		scanf("%d%d",&a,&b);
		adjl[b].push_back(a);
	}
	for(int i=1;i<=n;i++)
	{
		vector<int> all;
		for(auto j:adjl[i])
		{
			for(auto f:far[j])
			{
				if(visited[f.second]!=i)
				{
					visited[f.second]=i;
					all.push_back(f.second);
					val[f.second]=f.first+1;
				}
				else
				{
					val[f.second]=max(val[f.second],f.first+1);
				}
			}
			if(visited[j]!=i)
			{
				visited[j]=i;
				all.push_back(j);
				val[j]=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({val[all[j]],all[j]});
	}
	while(q--)
	{
		busy=0;
		int a,b,c;
		scanf("%d%d",&a,&b);
		for(int i=0;i<b;i++)
		{
			scanf("%d",&c);
			busy[c]=true;
		}
		if(b>=B)
		{
			vector<int> dp(n+1,-1);
			for(int i=1;i<=a;i++)
			{
				if(!busy[i]) dp[i]=max(dp[i],0);
				for(auto next:adjl[i])
					if(dp[next]!=-1)
						dp[i]=max(dp[i],dp[next]+1);
			}
			printf("%d\n",dp[a]);
		}
		else
		{
			bool check=false;
			for(auto f:far[a])
			{
				if(!busy[f.second])
				{
					printf("%d\n",f.first);
					check=true;
					break;
				}
			}
			if(!check) printf("-1\n");
		}
	}
}

Compilation message

bitaro.cpp: In function 'int main()':
bitaro.cpp:15:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |  scanf("%d%d%d",&n,&m,&q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
bitaro.cpp:19:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |   scanf("%d%d",&a,&b);
      |   ~~~~~^~~~~~~~~~~~~~
bitaro.cpp:56:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |   scanf("%d%d",&a,&b);
      |   ~~~~~^~~~~~~~~~~~~~
bitaro.cpp:59:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 |    scanf("%d",&c);
      |    ~~~~~^~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 4 ms 5716 KB Output is correct
3 Correct 3 ms 5812 KB Output is correct
4 Correct 3 ms 5812 KB Output is correct
5 Correct 6 ms 6228 KB Output is correct
6 Correct 6 ms 6212 KB Output is correct
7 Correct 6 ms 6228 KB Output is correct
8 Correct 11 ms 7636 KB Output is correct
9 Correct 11 ms 7612 KB Output is correct
10 Correct 11 ms 7636 KB Output is correct
11 Correct 11 ms 7508 KB Output is correct
12 Correct 8 ms 6868 KB Output is correct
13 Correct 10 ms 7548 KB Output is correct
14 Correct 8 ms 6868 KB Output is correct
15 Correct 7 ms 6484 KB Output is correct
16 Correct 8 ms 6804 KB Output is correct
17 Correct 8 ms 7124 KB Output is correct
18 Correct 7 ms 6712 KB Output is correct
19 Correct 9 ms 7124 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 4 ms 5716 KB Output is correct
3 Correct 3 ms 5812 KB Output is correct
4 Correct 3 ms 5812 KB Output is correct
5 Correct 6 ms 6228 KB Output is correct
6 Correct 6 ms 6212 KB Output is correct
7 Correct 6 ms 6228 KB Output is correct
8 Correct 11 ms 7636 KB Output is correct
9 Correct 11 ms 7612 KB Output is correct
10 Correct 11 ms 7636 KB Output is correct
11 Correct 11 ms 7508 KB Output is correct
12 Correct 8 ms 6868 KB Output is correct
13 Correct 10 ms 7548 KB Output is correct
14 Correct 8 ms 6868 KB Output is correct
15 Correct 7 ms 6484 KB Output is correct
16 Correct 8 ms 6804 KB Output is correct
17 Correct 8 ms 7124 KB Output is correct
18 Correct 7 ms 6712 KB Output is correct
19 Correct 9 ms 7124 KB Output is correct
20 Correct 148 ms 9876 KB Output is correct
21 Correct 138 ms 9860 KB Output is correct
22 Correct 140 ms 9932 KB Output is correct
23 Correct 146 ms 9904 KB Output is correct
24 Correct 818 ms 152248 KB Output is correct
25 Correct 802 ms 156732 KB Output is correct
26 Correct 820 ms 156912 KB Output is correct
27 Correct 867 ms 212244 KB Output is correct
28 Correct 829 ms 212304 KB Output is correct
29 Correct 877 ms 212256 KB Output is correct
30 Correct 819 ms 212208 KB Output is correct
31 Correct 845 ms 206848 KB Output is correct
32 Correct 811 ms 212236 KB Output is correct
33 Correct 599 ms 134132 KB Output is correct
34 Correct 645 ms 115532 KB Output is correct
35 Correct 592 ms 133336 KB Output is correct
36 Correct 691 ms 173480 KB Output is correct
37 Correct 766 ms 162612 KB Output is correct
38 Correct 710 ms 175288 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 4 ms 5716 KB Output is correct
3 Correct 3 ms 5812 KB Output is correct
4 Correct 3 ms 5812 KB Output is correct
5 Correct 6 ms 6228 KB Output is correct
6 Correct 6 ms 6212 KB Output is correct
7 Correct 6 ms 6228 KB Output is correct
8 Correct 11 ms 7636 KB Output is correct
9 Correct 11 ms 7612 KB Output is correct
10 Correct 11 ms 7636 KB Output is correct
11 Correct 11 ms 7508 KB Output is correct
12 Correct 8 ms 6868 KB Output is correct
13 Correct 10 ms 7548 KB Output is correct
14 Correct 8 ms 6868 KB Output is correct
15 Correct 7 ms 6484 KB Output is correct
16 Correct 8 ms 6804 KB Output is correct
17 Correct 8 ms 7124 KB Output is correct
18 Correct 7 ms 6712 KB Output is correct
19 Correct 9 ms 7124 KB Output is correct
20 Correct 148 ms 9876 KB Output is correct
21 Correct 138 ms 9860 KB Output is correct
22 Correct 140 ms 9932 KB Output is correct
23 Correct 146 ms 9904 KB Output is correct
24 Correct 818 ms 152248 KB Output is correct
25 Correct 802 ms 156732 KB Output is correct
26 Correct 820 ms 156912 KB Output is correct
27 Correct 867 ms 212244 KB Output is correct
28 Correct 829 ms 212304 KB Output is correct
29 Correct 877 ms 212256 KB Output is correct
30 Correct 819 ms 212208 KB Output is correct
31 Correct 845 ms 206848 KB Output is correct
32 Correct 811 ms 212236 KB Output is correct
33 Correct 599 ms 134132 KB Output is correct
34 Correct 645 ms 115532 KB Output is correct
35 Correct 592 ms 133336 KB Output is correct
36 Correct 691 ms 173480 KB Output is correct
37 Correct 766 ms 162612 KB Output is correct
38 Correct 710 ms 175288 KB Output is correct
39 Correct 1014 ms 155880 KB Output is correct
40 Correct 849 ms 156288 KB Output is correct
41 Correct 871 ms 156500 KB Output is correct
42 Correct 969 ms 157060 KB Output is correct
43 Correct 851 ms 156032 KB Output is correct
44 Correct 283 ms 11596 KB Output is correct
45 Correct 162 ms 10764 KB Output is correct
46 Correct 154 ms 10732 KB Output is correct
47 Correct 176 ms 10524 KB Output is correct
48 Correct 140 ms 10316 KB Output is correct
49 Correct 965 ms 214584 KB Output is correct
50 Correct 849 ms 213328 KB Output is correct
51 Correct 247 ms 11452 KB Output is correct
52 Correct 147 ms 10508 KB Output is correct
53 Correct 818 ms 174952 KB Output is correct
54 Correct 856 ms 163072 KB Output is correct
55 Correct 745 ms 173936 KB Output is correct
56 Correct 771 ms 162896 KB Output is correct
57 Correct 222 ms 11508 KB Output is correct
58 Correct 235 ms 11464 KB Output is correct
59 Correct 142 ms 10584 KB Output is correct
60 Correct 151 ms 10556 KB Output is correct
61 Correct 905 ms 213936 KB Output is correct
62 Correct 784 ms 175112 KB Output is correct
63 Correct 808 ms 162152 KB Output is correct
64 Correct 1018 ms 213864 KB Output is correct
65 Correct 933 ms 174520 KB Output is correct
66 Correct 1064 ms 163244 KB Output is correct
67 Correct 1271 ms 213876 KB Output is correct
68 Correct 1117 ms 175164 KB Output is correct
69 Correct 1113 ms 161240 KB Output is correct
70 Correct 963 ms 214024 KB Output is correct
71 Correct 773 ms 174956 KB Output is correct
72 Correct 882 ms 162732 KB Output is correct
73 Correct 909 ms 213832 KB Output is correct
74 Correct 731 ms 175076 KB Output is correct
75 Correct 807 ms 162664 KB Output is correct
76 Correct 978 ms 215080 KB Output is correct
77 Correct 1018 ms 213932 KB Output is correct
78 Correct 847 ms 214136 KB Output is correct
79 Correct 235 ms 11648 KB Output is correct
80 Correct 225 ms 10728 KB Output is correct
81 Correct 143 ms 10316 KB Output is correct
82 Correct 931 ms 214776 KB Output is correct
83 Correct 973 ms 209484 KB Output is correct
84 Correct 951 ms 213996 KB Output is correct
85 Correct 1046 ms 208384 KB Output is correct
86 Correct 812 ms 213816 KB Output is correct
87 Correct 870 ms 208852 KB Output is correct
88 Correct 231 ms 11584 KB Output is correct
89 Correct 238 ms 11596 KB Output is correct
90 Correct 218 ms 10708 KB Output is correct
91 Correct 216 ms 10700 KB Output is correct
92 Correct 146 ms 10320 KB Output is correct
93 Correct 142 ms 10284 KB Output is correct
94 Correct 687 ms 136860 KB Output is correct
95 Correct 793 ms 117664 KB Output is correct
96 Correct 730 ms 135488 KB Output is correct
97 Correct 819 ms 118856 KB Output is correct
98 Correct 616 ms 135812 KB Output is correct
99 Correct 683 ms 118368 KB Output is correct
100 Correct 233 ms 11640 KB Output is correct
101 Correct 239 ms 11688 KB Output is correct
102 Correct 205 ms 10856 KB Output is correct
103 Correct 197 ms 10720 KB Output is correct
104 Correct 155 ms 10368 KB Output is correct
105 Correct 144 ms 10316 KB Output is correct
106 Correct 845 ms 175356 KB Output is correct
107 Correct 877 ms 163936 KB Output is correct
108 Correct 869 ms 175648 KB Output is correct
109 Correct 886 ms 162760 KB Output is correct
110 Correct 750 ms 175764 KB Output is correct
111 Correct 793 ms 163268 KB Output is correct
112 Correct 235 ms 11772 KB Output is correct
113 Correct 227 ms 11668 KB Output is correct
114 Correct 218 ms 10700 KB Output is correct
115 Correct 216 ms 10676 KB Output is correct
116 Correct 138 ms 10332 KB Output is correct
117 Correct 144 ms 10280 KB Output is correct
118 Correct 882 ms 213412 KB Output is correct
119 Correct 730 ms 174868 KB Output is correct
120 Correct 782 ms 162140 KB Output is correct
121 Correct 879 ms 213376 KB Output is correct
122 Correct 724 ms 174240 KB Output is correct
123 Correct 806 ms 161764 KB Output is correct
124 Correct 865 ms 213304 KB Output is correct
125 Correct 693 ms 175124 KB Output is correct
126 Correct 823 ms 161500 KB Output is correct