oj.uz

Submission #94288

# Submission time Handle Problem Language Result Execution time Memory
94288 2019-01-17T10:15:02 Z autumn_eel Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1181 ms 149372 KB 
#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
#define INF 0x3f3f3f3f
using namespace std;
typedef pair<int,int>P;

#define B 100

vector<int>E[200000];
vector<P>dp[200000];
P mp[200000];
int dp2[200000];
bool b[200000];

int main(){
	int n,m,q;cin>>n>>m>>q;
	rep(i,m){
		int s,t;scanf("%d%d",&s,&t);s--;t--;
		E[t].push_back(s);
	}
	rep(i,n)dp[i].push_back(P(0,i));
	rep(i,n)mp[i]=P(-INF,-1);
	rep(i,n){
		for(int u:E[i]){
			for(auto&p:dp[u]){
				if(mp[p.second].second!=i){
					mp[p.second]=P(p.first+1,i);
				}
				else{
					mp[p.second]=max(mp[p.second],P(p.first+1,i));
				}
				b[p.second]=false;
			}
		}
		for(int u:E[i]){
			for(auto&p:dp[u]){
				if(!b[p.second]){
					dp[i].push_back(P(mp[p.second].first,p.second));
					b[p.second]=true;
				}
			}
		}
		sort(dp[i].begin(),dp[i].end(),greater<>());
		while(dp[i].size()>B)dp[i].pop_back();
	}
	memset(b,0,sizeof(b));
	rep(i,q){
		int t,y;scanf("%d%d",&t,&y);t--;
		vector<int>v;
		rep(j,y){
			int c;scanf("%d",&c);c--;
			v.push_back(c);
		}
		if(y<B){
			for(int i:v)b[i]=true;
			for(auto&p:dp[t]){
				if(!b[p.second]){
					printf("%d\n",p.first);
					goto g;
				}
			}
			puts("-1");
			g:;
			for(int i:v)b[i]=false;
		}
		else{
			fill(dp2,dp2+t+1,0);
			for(int i:v)dp2[i]=-INF;
			rep(i,t+1){
				for(int u:E[i]){
					dp2[i]=max(dp2[i],dp2[u]+1);
				}
			}
			printf("%d\n",dp2[t]<0?-1:dp2[t]);
		}
	}
}

Compilation message

bitaro.cpp: In function 'int main()':
bitaro.cpp:18:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int s,t;scanf("%d%d",&s,&t);s--;t--;
           ~~~~~^~~~~~~~~~~~~~
bitaro.cpp:48:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int t,y;scanf("%d%d",&t,&y);t--;
           ~~~~~^~~~~~~~~~~~~~
bitaro.cpp:51:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int c;scanf("%d",&c);c--;
          ~~~~~^~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9976 KB Output is correct
2 Correct 9 ms 9848 KB Output is correct
3 Correct 9 ms 9976 KB Output is correct
4 Correct 8 ms 9976 KB Output is correct
5 Correct 11 ms 10488 KB Output is correct
6 Correct 12 ms 10488 KB Output is correct
7 Correct 11 ms 10332 KB Output is correct
8 Correct 14 ms 11000 KB Output is correct
9 Correct 12 ms 11128 KB Output is correct
10 Correct 12 ms 10876 KB Output is correct
11 Correct 12 ms 10872 KB Output is correct
12 Correct 13 ms 10744 KB Output is correct
13 Correct 12 ms 10872 KB Output is correct
14 Correct 14 ms 10616 KB Output is correct
15 Correct 13 ms 10488 KB Output is correct
16 Correct 13 ms 10616 KB Output is correct
17 Correct 12 ms 10744 KB Output is correct
18 Correct 15 ms 10616 KB Output is correct
19 Correct 14 ms 10744 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9976 KB Output is correct
2 Correct 9 ms 9848 KB Output is correct
3 Correct 9 ms 9976 KB Output is correct
4 Correct 8 ms 9976 KB Output is correct
5 Correct 11 ms 10488 KB Output is correct
6 Correct 12 ms 10488 KB Output is correct
7 Correct 11 ms 10332 KB Output is correct
8 Correct 14 ms 11000 KB Output is correct
9 Correct 12 ms 11128 KB Output is correct
10 Correct 12 ms 10876 KB Output is correct
11 Correct 12 ms 10872 KB Output is correct
12 Correct 13 ms 10744 KB Output is correct
13 Correct 12 ms 10872 KB Output is correct
14 Correct 14 ms 10616 KB Output is correct
15 Correct 13 ms 10488 KB Output is correct
16 Correct 13 ms 10616 KB Output is correct
17 Correct 12 ms 10744 KB Output is correct
18 Correct 15 ms 10616 KB Output is correct
19 Correct 14 ms 10744 KB Output is correct
20 Correct 132 ms 12664 KB Output is correct
21 Correct 114 ms 12664 KB Output is correct
22 Correct 116 ms 12664 KB Output is correct
23 Correct 118 ms 12664 KB Output is correct
24 Correct 777 ms 121052 KB Output is correct
25 Correct 862 ms 117572 KB Output is correct
26 Correct 840 ms 116984 KB Output is correct
27 Correct 575 ms 117240 KB Output is correct
28 Correct 521 ms 117176 KB Output is correct
29 Correct 519 ms 117176 KB Output is correct
30 Correct 460 ms 117112 KB Output is correct
31 Correct 642 ms 135156 KB Output is correct
32 Correct 451 ms 117012 KB Output is correct
33 Correct 467 ms 82036 KB Output is correct
34 Correct 615 ms 109688 KB Output is correct
35 Correct 462 ms 81664 KB Output is correct
36 Correct 477 ms 100184 KB Output is correct
37 Correct 697 ms 121560 KB Output is correct
38 Correct 507 ms 100216 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9976 KB Output is correct
2 Correct 9 ms 9848 KB Output is correct
3 Correct 9 ms 9976 KB Output is correct
4 Correct 8 ms 9976 KB Output is correct
5 Correct 11 ms 10488 KB Output is correct
6 Correct 12 ms 10488 KB Output is correct
7 Correct 11 ms 10332 KB Output is correct
8 Correct 14 ms 11000 KB Output is correct
9 Correct 12 ms 11128 KB Output is correct
10 Correct 12 ms 10876 KB Output is correct
11 Correct 12 ms 10872 KB Output is correct
12 Correct 13 ms 10744 KB Output is correct
13 Correct 12 ms 10872 KB Output is correct
14 Correct 14 ms 10616 KB Output is correct
15 Correct 13 ms 10488 KB Output is correct
16 Correct 13 ms 10616 KB Output is correct
17 Correct 12 ms 10744 KB Output is correct
18 Correct 15 ms 10616 KB Output is correct
19 Correct 14 ms 10744 KB Output is correct
20 Correct 132 ms 12664 KB Output is correct
21 Correct 114 ms 12664 KB Output is correct
22 Correct 116 ms 12664 KB Output is correct
23 Correct 118 ms 12664 KB Output is correct
24 Correct 777 ms 121052 KB Output is correct
25 Correct 862 ms 117572 KB Output is correct
26 Correct 840 ms 116984 KB Output is correct
27 Correct 575 ms 117240 KB Output is correct
28 Correct 521 ms 117176 KB Output is correct
29 Correct 519 ms 117176 KB Output is correct
30 Correct 460 ms 117112 KB Output is correct
31 Correct 642 ms 135156 KB Output is correct
32 Correct 451 ms 117012 KB Output is correct
33 Correct 467 ms 82036 KB Output is correct
34 Correct 615 ms 109688 KB Output is correct
35 Correct 462 ms 81664 KB Output is correct
36 Correct 477 ms 100184 KB Output is correct
37 Correct 697 ms 121560 KB Output is correct
38 Correct 507 ms 100216 KB Output is correct
39 Correct 957 ms 122164 KB Output is correct
40 Correct 878 ms 117976 KB Output is correct
41 Correct 1181 ms 119916 KB Output is correct
42 Correct 967 ms 119160 KB Output is correct
43 Correct 772 ms 120824 KB Output is correct
44 Correct 166 ms 13176 KB Output is correct
45 Correct 147 ms 12808 KB Output is correct
46 Correct 179 ms 12908 KB Output is correct
47 Correct 125 ms 12768 KB Output is correct
48 Correct 128 ms 12612 KB Output is correct
49 Correct 614 ms 117220 KB Output is correct
50 Correct 749 ms 116940 KB Output is correct
51 Correct 155 ms 13176 KB Output is correct
52 Correct 187 ms 12880 KB Output is correct
53 Correct 595 ms 99576 KB Output is correct
54 Correct 800 ms 120020 KB Output is correct
55 Correct 998 ms 99652 KB Output is correct
56 Correct 1046 ms 123548 KB Output is correct
57 Correct 174 ms 13044 KB Output is correct
58 Correct 174 ms 13028 KB Output is correct
59 Correct 212 ms 12636 KB Output is correct
60 Correct 202 ms 12536 KB Output is correct
61 Correct 560 ms 116728 KB Output is correct
62 Correct 671 ms 99784 KB Output is correct
63 Correct 842 ms 119032 KB Output is correct
64 Correct 739 ms 116656 KB Output is correct
65 Correct 731 ms 99444 KB Output is correct
66 Correct 954 ms 120960 KB Output is correct
67 Correct 779 ms 117020 KB Output is correct
68 Correct 877 ms 100188 KB Output is correct
69 Correct 1140 ms 121252 KB Output is correct
70 Correct 512 ms 117076 KB Output is correct
71 Correct 468 ms 100092 KB Output is correct
72 Correct 742 ms 121148 KB Output is correct
73 Correct 473 ms 116984 KB Output is correct
74 Correct 546 ms 99960 KB Output is correct
75 Correct 728 ms 123256 KB Output is correct
76 Correct 546 ms 117188 KB Output is correct
77 Correct 815 ms 117028 KB Output is correct
78 Correct 534 ms 117172 KB Output is correct
79 Correct 153 ms 13176 KB Output is correct
80 Correct 164 ms 12928 KB Output is correct
81 Correct 130 ms 12792 KB Output is correct
82 Correct 563 ms 116936 KB Output is correct
83 Correct 697 ms 138244 KB Output is correct
84 Correct 703 ms 116984 KB Output is correct
85 Correct 1000 ms 149372 KB Output is correct
86 Correct 506 ms 117360 KB Output is correct
87 Correct 713 ms 138604 KB Output is correct
88 Correct 170 ms 13432 KB Output is correct
89 Correct 151 ms 13432 KB Output is correct
90 Correct 235 ms 13132 KB Output is correct
91 Correct 173 ms 13052 KB Output is correct
92 Correct 118 ms 13156 KB Output is correct
93 Correct 118 ms 13020 KB Output is correct
94 Correct 577 ms 82176 KB Output is correct
95 Correct 779 ms 116388 KB Output is correct
96 Correct 716 ms 81784 KB Output is correct
97 Correct 1066 ms 117496 KB Output is correct
98 Correct 449 ms 82268 KB Output is correct
99 Correct 689 ms 113552 KB Output is correct
100 Correct 160 ms 13432 KB Output is correct
101 Correct 161 ms 13432 KB Output is correct
102 Correct 186 ms 13240 KB Output is correct
103 Correct 163 ms 13048 KB Output is correct
104 Correct 121 ms 13044 KB Output is correct
105 Correct 119 ms 13020 KB Output is correct
106 Correct 563 ms 99844 KB Output is correct
107 Correct 802 ms 125500 KB Output is correct
108 Correct 881 ms 100348 KB Output is correct
109 Correct 1085 ms 116804 KB Output is correct
110 Correct 565 ms 100464 KB Output is correct
111 Correct 734 ms 122460 KB Output is correct
112 Correct 158 ms 13304 KB Output is correct
113 Correct 155 ms 13132 KB Output is correct
114 Correct 206 ms 12792 KB Output is correct
115 Correct 172 ms 12792 KB Output is correct
116 Correct 121 ms 12920 KB Output is correct
117 Correct 117 ms 12752 KB Output is correct
118 Correct 575 ms 116496 KB Output is correct
119 Correct 524 ms 99704 KB Output is correct
120 Correct 930 ms 126456 KB Output is correct
121 Correct 544 ms 116456 KB Output is correct
122 Correct 509 ms 99320 KB Output is correct
123 Correct 743 ms 125548 KB Output is correct
124 Correct 508 ms 116512 KB Output is correct
125 Correct 478 ms 99900 KB Output is correct
126 Correct 646 ms 122484 KB Output is correct