oj.uz

Submission #95054

# Submission time Handle Problem Language Result Execution time Memory
95054 2019-01-27T07:24:50 Z ckodser Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1866 ms 306508 KB 
#include<bits/stdc++.h>

#define ll int
#define pb push_back
#define mp make_pair
#define ld long double
#define F first
#define S second
#define pii pair<ll,ll> 

using namespace :: std;

const ll maxn=1e5+500;
const ll maxm=2e5+500;
const ll inf =1e9+900;
const ll mod=1e9+7;
const ll rad=330;

vector<ll> out[maxn];
vector<ll>  in[maxn];
vector<pii> maxx[maxn];

ll tmp[maxn];
bool hazf[maxn];

ll dp[maxn];
ll find_ans(ll t){
	dp[t]=0;
	ll ans=-1;
	if(!hazf[t])ans=0;
	for(ll i=t-1;i>=1;i--){
		dp[i]=-inf;
		for(auto v:out[i]){
			if(v<=t){
				dp[i]=max(dp[i],dp[v]+1);
			}
		}
		if(!hazf[i]){
			ans=max(ans,dp[i]);
		}
	}
	return ans;
}
int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);

	ll n,m,q;
	cin>>n>>m>>q;
	for(ll i=0;i<m;i++){
		ll s,e;
		cin>>s>>e;
		out[s].pb(e);
		in[e].pb(s);
	}
	for(ll i=1;i<=n;i++){
		vector<pii> vec;
		ll azz=0;
		for(auto v:in[i]){
			for(auto e:maxx[v]){
				azz+=(tmp[e.S]==0);
				tmp[e.S]=max(tmp[e.S],e.F+1);
			}
		}	
		maxx[i].reserve(azz+2);
		for(auto v:in[i]){
			for(auto e:maxx[v]){
				if(tmp[e.S]!=0){
					maxx[i].pb(mp(tmp[e.S],e.S));
					tmp[e.S]=0;
				}
			}
		}	
		maxx[i].pb(mp(0,i));

		sort(maxx[i].begin(),maxx[i].end());
		reverse(maxx[i].begin(),maxx[i].end());
		if(maxx[i].size()>rad)maxx[i].resize(rad);
	//	cout<<i<<":::"<<endl;
		for(auto e:maxx[i]){
	//		cout<<e.S<<' '<<e.F<<endl;
		}
	}
	for(ll qw=0;qw<q;qw++){
		ll t,y;
		cin>>t>>y;
		vector<ll> vec;
		for(ll i=0;i<y;i++){
			ll v;
			cin>>v;
			vec.pb(v);
			hazf[v]=1;
		}
		if(y<rad){
			bool cou=0;
			for(auto e:maxx[t]){
				if(!hazf[e.S]){
					cou=1;
					cout<<e.F<<endl;
					break;
				}
			}
			if(!cou){
				cout<<-1<<endl;
			}
		}else{
			cout<<find_ans(t)<<endl;
		}
		for(auto v:vec){
			hazf[v]=0;
		}
	}
}

Compilation message

bitaro.cpp: In function 'int main()':
bitaro.cpp:79:12: warning: variable 'e' set but not used [-Wunused-but-set-variable]
   for(auto e:maxx[i]){
            ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 7416 KB Output is correct
2 Correct 6 ms 7416 KB Output is correct
3 Correct 7 ms 7548 KB Output is correct
4 Correct 6 ms 7416 KB Output is correct
5 Correct 9 ms 7800 KB Output is correct
6 Correct 9 ms 7800 KB Output is correct
7 Correct 9 ms 7804 KB Output is correct
8 Correct 15 ms 9720 KB Output is correct
9 Correct 16 ms 9720 KB Output is correct
10 Correct 16 ms 9720 KB Output is correct
11 Correct 15 ms 9340 KB Output is correct
12 Correct 12 ms 8440 KB Output is correct
13 Correct 15 ms 9308 KB Output is correct
14 Correct 13 ms 8824 KB Output is correct
15 Correct 14 ms 8184 KB Output is correct
16 Correct 15 ms 8824 KB Output is correct
17 Correct 17 ms 9000 KB Output is correct
18 Correct 13 ms 8312 KB Output is correct
19 Correct 16 ms 8928 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 7416 KB Output is correct
2 Correct 6 ms 7416 KB Output is correct
3 Correct 7 ms 7548 KB Output is correct
4 Correct 6 ms 7416 KB Output is correct
5 Correct 9 ms 7800 KB Output is correct
6 Correct 9 ms 7800 KB Output is correct
7 Correct 9 ms 7804 KB Output is correct
8 Correct 15 ms 9720 KB Output is correct
9 Correct 16 ms 9720 KB Output is correct
10 Correct 16 ms 9720 KB Output is correct
11 Correct 15 ms 9340 KB Output is correct
12 Correct 12 ms 8440 KB Output is correct
13 Correct 15 ms 9308 KB Output is correct
14 Correct 13 ms 8824 KB Output is correct
15 Correct 14 ms 8184 KB Output is correct
16 Correct 15 ms 8824 KB Output is correct
17 Correct 17 ms 9000 KB Output is correct
18 Correct 13 ms 8312 KB Output is correct
19 Correct 16 ms 8928 KB Output is correct
20 Correct 163 ms 12408 KB Output is correct
21 Correct 154 ms 12256 KB Output is correct
22 Correct 156 ms 12296 KB Output is correct
23 Correct 168 ms 12380 KB Output is correct
24 Correct 1445 ms 196484 KB Output is correct
25 Correct 1488 ms 203716 KB Output is correct
26 Correct 1611 ms 202844 KB Output is correct
27 Correct 1093 ms 276324 KB Output is correct
28 Correct 1144 ms 275836 KB Output is correct
29 Correct 1054 ms 275832 KB Output is correct
30 Correct 1158 ms 274752 KB Output is correct
31 Correct 1442 ms 298044 KB Output is correct
32 Correct 1191 ms 274680 KB Output is correct
33 Correct 946 ms 175356 KB Output is correct
34 Correct 1354 ms 201472 KB Output is correct
35 Correct 786 ms 174200 KB Output is correct
36 Correct 1004 ms 225232 KB Output is correct
37 Correct 1439 ms 234488 KB Output is correct
38 Correct 1032 ms 225624 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 7416 KB Output is correct
2 Correct 6 ms 7416 KB Output is correct
3 Correct 7 ms 7548 KB Output is correct
4 Correct 6 ms 7416 KB Output is correct
5 Correct 9 ms 7800 KB Output is correct
6 Correct 9 ms 7800 KB Output is correct
7 Correct 9 ms 7804 KB Output is correct
8 Correct 15 ms 9720 KB Output is correct
9 Correct 16 ms 9720 KB Output is correct
10 Correct 16 ms 9720 KB Output is correct
11 Correct 15 ms 9340 KB Output is correct
12 Correct 12 ms 8440 KB Output is correct
13 Correct 15 ms 9308 KB Output is correct
14 Correct 13 ms 8824 KB Output is correct
15 Correct 14 ms 8184 KB Output is correct
16 Correct 15 ms 8824 KB Output is correct
17 Correct 17 ms 9000 KB Output is correct
18 Correct 13 ms 8312 KB Output is correct
19 Correct 16 ms 8928 KB Output is correct
20 Correct 163 ms 12408 KB Output is correct
21 Correct 154 ms 12256 KB Output is correct
22 Correct 156 ms 12296 KB Output is correct
23 Correct 168 ms 12380 KB Output is correct
24 Correct 1445 ms 196484 KB Output is correct
25 Correct 1488 ms 203716 KB Output is correct
26 Correct 1611 ms 202844 KB Output is correct
27 Correct 1093 ms 276324 KB Output is correct
28 Correct 1144 ms 275836 KB Output is correct
29 Correct 1054 ms 275832 KB Output is correct
30 Correct 1158 ms 274752 KB Output is correct
31 Correct 1442 ms 298044 KB Output is correct
32 Correct 1191 ms 274680 KB Output is correct
33 Correct 946 ms 175356 KB Output is correct
34 Correct 1354 ms 201472 KB Output is correct
35 Correct 786 ms 174200 KB Output is correct
36 Correct 1004 ms 225232 KB Output is correct
37 Correct 1439 ms 234488 KB Output is correct
38 Correct 1032 ms 225624 KB Output is correct
39 Correct 1586 ms 198852 KB Output is correct
40 Correct 1492 ms 198680 KB Output is correct
41 Correct 1488 ms 199800 KB Output is correct
42 Correct 1692 ms 199836 KB Output is correct
43 Correct 1502 ms 199728 KB Output is correct
44 Correct 316 ms 12280 KB Output is correct
45 Correct 199 ms 13560 KB Output is correct
46 Correct 165 ms 13632 KB Output is correct
47 Correct 214 ms 13660 KB Output is correct
48 Correct 152 ms 13432 KB Output is correct
49 Correct 1523 ms 277232 KB Output is correct
50 Correct 1307 ms 276572 KB Output is correct
51 Correct 329 ms 13876 KB Output is correct
52 Correct 182 ms 13564 KB Output is correct
53 Correct 1211 ms 225400 KB Output is correct
54 Correct 1630 ms 237452 KB Output is correct
55 Correct 1110 ms 225400 KB Output is correct
56 Correct 1578 ms 239820 KB Output is correct
57 Correct 320 ms 13756 KB Output is correct
58 Correct 314 ms 13816 KB Output is correct
59 Correct 169 ms 13560 KB Output is correct
60 Correct 173 ms 13564 KB Output is correct
61 Correct 1377 ms 276984 KB Output is correct
62 Correct 1154 ms 226624 KB Output is correct
63 Correct 1662 ms 236024 KB Output is correct
64 Correct 1373 ms 277036 KB Output is correct
65 Correct 1216 ms 225784 KB Output is correct
66 Correct 1625 ms 243368 KB Output is correct
67 Correct 1220 ms 276600 KB Output is correct
68 Correct 1018 ms 226016 KB Output is correct
69 Correct 1475 ms 232952 KB Output is correct
70 Correct 1260 ms 277092 KB Output is correct
71 Correct 1164 ms 226552 KB Output is correct
72 Correct 1517 ms 237944 KB Output is correct
73 Correct 1418 ms 276988 KB Output is correct
74 Correct 1119 ms 226520 KB Output is correct
75 Correct 1627 ms 235184 KB Output is correct
76 Correct 1615 ms 277168 KB Output is correct
77 Correct 1191 ms 276712 KB Output is correct
78 Correct 1053 ms 277216 KB Output is correct
79 Correct 313 ms 13688 KB Output is correct
80 Correct 159 ms 13560 KB Output is correct
81 Correct 154 ms 13432 KB Output is correct
82 Correct 1426 ms 275948 KB Output is correct
83 Correct 1866 ms 301880 KB Output is correct
84 Correct 1283 ms 275676 KB Output is correct
85 Correct 1766 ms 306508 KB Output is correct
86 Correct 1218 ms 276320 KB Output is correct
87 Correct 1641 ms 305068 KB Output is correct
88 Correct 329 ms 13692 KB Output is correct
89 Correct 327 ms 13816 KB Output is correct
90 Correct 162 ms 13560 KB Output is correct
91 Correct 180 ms 13560 KB Output is correct
92 Correct 150 ms 13604 KB Output is correct
93 Correct 167 ms 13432 KB Output is correct
94 Correct 1006 ms 176888 KB Output is correct
95 Correct 1694 ms 212600 KB Output is correct
96 Correct 861 ms 175512 KB Output is correct
97 Correct 1502 ms 216596 KB Output is correct
98 Correct 902 ms 176728 KB Output is correct
99 Correct 1382 ms 210464 KB Output is correct
100 Correct 329 ms 13688 KB Output is correct
101 Correct 320 ms 13720 KB Output is correct
102 Correct 204 ms 13816 KB Output is correct
103 Correct 196 ms 13816 KB Output is correct
104 Correct 170 ms 13432 KB Output is correct
105 Correct 169 ms 13532 KB Output is correct
106 Correct 1291 ms 228216 KB Output is correct
107 Correct 1708 ms 241628 KB Output is correct
108 Correct 1067 ms 228336 KB Output is correct
109 Correct 1387 ms 235384 KB Output is correct
110 Correct 1048 ms 228856 KB Output is correct
111 Correct 1501 ms 240140 KB Output is correct
112 Correct 320 ms 14840 KB Output is correct
113 Correct 302 ms 14840 KB Output is correct
114 Correct 158 ms 13852 KB Output is correct
115 Correct 173 ms 13780 KB Output is correct
116 Correct 148 ms 13440 KB Output is correct
117 Correct 168 ms 13460 KB Output is correct
118 Correct 1212 ms 277692 KB Output is correct
119 Correct 1042 ms 227648 KB Output is correct
120 Correct 1623 ms 235224 KB Output is correct
121 Correct 1462 ms 277932 KB Output is correct
122 Correct 1156 ms 226900 KB Output is correct
123 Correct 1575 ms 238460 KB Output is correct
124 Correct 1211 ms 277748 KB Output is correct
125 Correct 1029 ms 228088 KB Output is correct
126 Correct 1393 ms 238712 KB Output is correct