oj.uz

Submission #627115

# Submission time Handle Problem Language Result Execution time Memory
627115 2022-08-12T08:13:46 Z codr0 Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1420 ms 276764 KB 
// Code by Parsa Eslami

#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>

#define err(x) cerr<#x<<" : "<<x<<'\n'
#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define FORR(i,a,b) for(int i=a;i>=b;i--)
#define F first
#define S second
#define pb push_back
#define bit(i,j) ((j>>i)&1)
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define all(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
#define dmid int mid=(r+l)/2
#define lc 2*id
#define rc 2*id+1

using namespace std;
const int N=1e5+4;
const int SQ=340;
vector<int> adj[N];
vector<pii> vc[N];
int ind[N];
int dp[N];
bool mark[N];

	int32_t main(){
	iostream::sync_with_stdio(0); cin.tie(0);

	int n,m,q; cin>>n>>m>>q;
	FOR(i,1,m){
		int v,u; cin>>v>>u;
		adj[u].pb(v);
	}
	FOR(i,1,n){
		vector<pii> vc0;
		vc[i].pb({-1,i});
		while(SZ(vc0)<=SQ){
			pair<pii,int> mx={{-2,-1},0};
			for(int u:adj[i]) while(ind[u]<SZ(vc[u])&&mark[vc[u][ind[u]].S]) ind[u]++;
			if(ind[i]<SZ(vc[i])){
				pair<pii,int> O={vc[i][ind[i]],i};
				maxm(mx,O);
			}
			for(int u:adj[i]) if(ind[u]<SZ(vc[u])){
				pair<pii,int> O={vc[u][ind[u]],u};
				maxm(mx,O);
			}
			mx.F.F++;
			if(mx.F.F==-1) break;
			ind[mx.S]++;
			mark[mx.F.S]=1;
			vc0.pb(mx.F);
		}
		vc[i]=vc0;
		for(pii x0:vc[i]) mark[x0.S]=0;
		ind[i]=0;
		for(int u:adj[i]) ind[u]=0;
	}
	FOR(__,1,q){
		int v; cin>>v;
		vector<int> bad; int w; cin>>w;
		FOR(_,1,w){
			int x0; cin>>x0; bad.pb(x0);
			mark[x0]=1;
		}
		int ans=-1;
		if(w>=SQ){
			FOR(i,1,v-1) dp[i]=-1;
			dp[v]=0;
			FORR(i,v,1) if(dp[i]!=-1)
				for(int u:adj[i]) maxm(dp[u],dp[i]+1);
			FOR(i,1,v) if(!mark[i]) maxm(ans,dp[i]);
		}else{
			for(pii x0:vc[v]) if(!mark[x0.S]) maxm(ans,x0.F);
		}
		cout<<ans<<'\n';
		for(int w0:bad) mark[w0]=0;
	}

	return 0;
	}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 5 ms 5372 KB Output is correct
6 Correct 5 ms 5332 KB Output is correct
7 Correct 5 ms 5332 KB Output is correct
8 Correct 14 ms 7252 KB Output is correct
9 Correct 13 ms 7252 KB Output is correct
10 Correct 12 ms 7252 KB Output is correct
11 Correct 11 ms 6996 KB Output is correct
12 Correct 8 ms 5852 KB Output is correct
13 Correct 11 ms 6868 KB Output is correct
14 Correct 10 ms 6356 KB Output is correct
15 Correct 7 ms 5580 KB Output is correct
16 Correct 11 ms 6228 KB Output is correct
17 Correct 10 ms 6484 KB Output is correct
18 Correct 8 ms 5792 KB Output is correct
19 Correct 10 ms 6484 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 5 ms 5372 KB Output is correct
6 Correct 5 ms 5332 KB Output is correct
7 Correct 5 ms 5332 KB Output is correct
8 Correct 14 ms 7252 KB Output is correct
9 Correct 13 ms 7252 KB Output is correct
10 Correct 12 ms 7252 KB Output is correct
11 Correct 11 ms 6996 KB Output is correct
12 Correct 8 ms 5852 KB Output is correct
13 Correct 11 ms 6868 KB Output is correct
14 Correct 10 ms 6356 KB Output is correct
15 Correct 7 ms 5580 KB Output is correct
16 Correct 11 ms 6228 KB Output is correct
17 Correct 10 ms 6484 KB Output is correct
18 Correct 8 ms 5792 KB Output is correct
19 Correct 10 ms 6484 KB Output is correct
20 Correct 495 ms 8308 KB Output is correct
21 Correct 496 ms 8420 KB Output is correct
22 Correct 513 ms 8424 KB Output is correct
23 Correct 574 ms 8420 KB Output is correct
24 Correct 915 ms 170188 KB Output is correct
25 Correct 974 ms 177408 KB Output is correct
26 Correct 987 ms 177116 KB Output is correct
27 Correct 1185 ms 276408 KB Output is correct
28 Correct 1142 ms 276624 KB Output is correct
29 Correct 1136 ms 276764 KB Output is correct
30 Correct 1163 ms 276064 KB Output is correct
31 Correct 1127 ms 266648 KB Output is correct
32 Correct 1160 ms 276028 KB Output is correct
33 Correct 826 ms 171324 KB Output is correct
34 Correct 718 ms 141160 KB Output is correct
35 Correct 822 ms 170336 KB Output is correct
36 Correct 1037 ms 223912 KB Output is correct
37 Correct 1002 ms 202820 KB Output is correct
38 Correct 1044 ms 224320 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 5 ms 5372 KB Output is correct
6 Correct 5 ms 5332 KB Output is correct
7 Correct 5 ms 5332 KB Output is correct
8 Correct 14 ms 7252 KB Output is correct
9 Correct 13 ms 7252 KB Output is correct
10 Correct 12 ms 7252 KB Output is correct
11 Correct 11 ms 6996 KB Output is correct
12 Correct 8 ms 5852 KB Output is correct
13 Correct 11 ms 6868 KB Output is correct
14 Correct 10 ms 6356 KB Output is correct
15 Correct 7 ms 5580 KB Output is correct
16 Correct 11 ms 6228 KB Output is correct
17 Correct 10 ms 6484 KB Output is correct
18 Correct 8 ms 5792 KB Output is correct
19 Correct 10 ms 6484 KB Output is correct
20 Correct 495 ms 8308 KB Output is correct
21 Correct 496 ms 8420 KB Output is correct
22 Correct 513 ms 8424 KB Output is correct
23 Correct 574 ms 8420 KB Output is correct
24 Correct 915 ms 170188 KB Output is correct
25 Correct 974 ms 177408 KB Output is correct
26 Correct 987 ms 177116 KB Output is correct
27 Correct 1185 ms 276408 KB Output is correct
28 Correct 1142 ms 276624 KB Output is correct
29 Correct 1136 ms 276764 KB Output is correct
30 Correct 1163 ms 276064 KB Output is correct
31 Correct 1127 ms 266648 KB Output is correct
32 Correct 1160 ms 276028 KB Output is correct
33 Correct 826 ms 171324 KB Output is correct
34 Correct 718 ms 141160 KB Output is correct
35 Correct 822 ms 170336 KB Output is correct
36 Correct 1037 ms 223912 KB Output is correct
37 Correct 1002 ms 202820 KB Output is correct
38 Correct 1044 ms 224320 KB Output is correct
39 Correct 1057 ms 172064 KB Output is correct
40 Correct 1047 ms 173324 KB Output is correct
41 Correct 1136 ms 174784 KB Output is correct
42 Correct 1020 ms 174384 KB Output is correct
43 Correct 1100 ms 173756 KB Output is correct
44 Correct 600 ms 8808 KB Output is correct
45 Correct 532 ms 8396 KB Output is correct
46 Correct 510 ms 8344 KB Output is correct
47 Correct 576 ms 8368 KB Output is correct
48 Correct 499 ms 8396 KB Output is correct
49 Correct 1338 ms 276476 KB Output is correct
50 Correct 1243 ms 275764 KB Output is correct
51 Correct 556 ms 8760 KB Output is correct
52 Correct 503 ms 8560 KB Output is correct
53 Correct 1131 ms 222988 KB Output is correct
54 Correct 1091 ms 202984 KB Output is correct
55 Correct 1028 ms 222644 KB Output is correct
56 Correct 991 ms 203380 KB Output is correct
57 Correct 597 ms 8788 KB Output is correct
58 Correct 557 ms 8988 KB Output is correct
59 Correct 505 ms 8352 KB Output is correct
60 Correct 507 ms 8368 KB Output is correct
61 Correct 1352 ms 276280 KB Output is correct
62 Correct 1079 ms 223868 KB Output is correct
63 Correct 1048 ms 202592 KB Output is correct
64 Correct 1346 ms 276248 KB Output is correct
65 Correct 1082 ms 223036 KB Output is correct
66 Correct 1020 ms 203700 KB Output is correct
67 Correct 1248 ms 275876 KB Output is correct
68 Correct 1006 ms 223468 KB Output is correct
69 Correct 972 ms 200532 KB Output is correct
70 Correct 1247 ms 276332 KB Output is correct
71 Correct 1020 ms 224080 KB Output is correct
72 Correct 1082 ms 203356 KB Output is correct
73 Correct 1271 ms 276280 KB Output is correct
74 Correct 1039 ms 224048 KB Output is correct
75 Correct 1002 ms 203476 KB Output is correct
76 Correct 1374 ms 276556 KB Output is correct
77 Correct 1252 ms 275932 KB Output is correct
78 Correct 1185 ms 276616 KB Output is correct
79 Correct 552 ms 8832 KB Output is correct
80 Correct 513 ms 8396 KB Output is correct
81 Correct 506 ms 8408 KB Output is correct
82 Correct 1338 ms 276172 KB Output is correct
83 Correct 1356 ms 266700 KB Output is correct
84 Correct 1239 ms 275632 KB Output is correct
85 Correct 1264 ms 265868 KB Output is correct
86 Correct 1173 ms 276088 KB Output is correct
87 Correct 1185 ms 267008 KB Output is correct
88 Correct 571 ms 8816 KB Output is correct
89 Correct 571 ms 8740 KB Output is correct
90 Correct 537 ms 8424 KB Output is correct
91 Correct 516 ms 8288 KB Output is correct
92 Correct 549 ms 8484 KB Output is correct
93 Correct 612 ms 8384 KB Output is correct
94 Correct 937 ms 171432 KB Output is correct
95 Correct 807 ms 140140 KB Output is correct
96 Correct 883 ms 170176 KB Output is correct
97 Correct 760 ms 142512 KB Output is correct
98 Correct 848 ms 171260 KB Output is correct
99 Correct 757 ms 142484 KB Output is correct
100 Correct 621 ms 8720 KB Output is correct
101 Correct 684 ms 8708 KB Output is correct
102 Correct 560 ms 8364 KB Output is correct
103 Correct 600 ms 8300 KB Output is correct
104 Correct 565 ms 8416 KB Output is correct
105 Correct 544 ms 8388 KB Output is correct
106 Correct 1119 ms 223160 KB Output is correct
107 Correct 1072 ms 203088 KB Output is correct
108 Correct 1022 ms 224160 KB Output is correct
109 Correct 1002 ms 202504 KB Output is correct
110 Correct 1063 ms 224732 KB Output is correct
111 Correct 1014 ms 203772 KB Output is correct
112 Correct 544 ms 8836 KB Output is correct
113 Correct 555 ms 8792 KB Output is correct
114 Correct 600 ms 8332 KB Output is correct
115 Correct 541 ms 8396 KB Output is correct
116 Correct 574 ms 8328 KB Output is correct
117 Correct 539 ms 8384 KB Output is correct
118 Correct 1420 ms 275900 KB Output is correct
119 Correct 1087 ms 224052 KB Output is correct
120 Correct 1027 ms 202360 KB Output is correct
121 Correct 1268 ms 275948 KB Output is correct
122 Correct 1012 ms 223052 KB Output is correct
123 Correct 1037 ms 202644 KB Output is correct
124 Correct 1232 ms 275888 KB Output is correct
125 Correct 1034 ms 224368 KB Output is correct
126 Correct 991 ms 202004 KB Output is correct