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Submission #424573

# Submission time Handle Problem Language Result Execution time Memory
424573 2021-06-12T06:27:27 Z Pyqe Simurgh (IOI17_simurgh) C++14
100 / 100
 254 ms 8308 KB 
#include <bits/stdc++.h>
#include "simurgh.h"

using namespace std;

#define mp make_pair
#define fr first
#define sc second

long long n,m,nn=0,nm,dsu[569],ex[569],pr[569],dh[569],sr[569],sq[569],zs=0;
pair<long long,long long> ed[125069],ca[569];
bitset<125069> spc;
vector<pair<long long,long long>> al[569];
bitset<569> vtd,kd,ve;

long long fd(long long x)
{
	if(dsu[x]!=x)
	{
		dsu[x]=fd(dsu[x]);
	}
	return dsu[x];
}

void bd(long long x)
{
	long long i,sz=al[x].size(),l,p;
	
	vtd[x]=1;
	for(i=0;i<sz;i++)
	{
		l=al[x][i].fr;
		p=al[x][i].sc;
		if(!vtd[l])
		{
			pr[l]=x;
			dh[l]=dh[x]+1;
			sr[l]=p;
			bd(l);
		}
	}
}

long long qr(long long x,long long w)
{
	long long i,sz=al[x].size(),k,l,p,c=0;
	vector<int> v;
	
	for(i=1;i<=n;i++)
	{
		dsu[i]=i;
	}
	for(i=0;i<sz;i++)
	{
		l=al[x][i].fr;
		p=al[x][i].sc;
		if(i<=w&&!vtd[i])
		{
			v.push_back(p-1);
			dsu[fd(l)]=fd(x);
		}
	}
	for(i=1;i<=nn;i++)
	{
		p=ex[i];
		k=ed[p].fr;
		l=ed[p].sc;
		if(fd(k)!=fd(l))
		{
			dsu[fd(l)]=fd(k);
			v.push_back(p-1);
			c+=kd[i];
		}
	}
	return count_common_roads(v)-c;
}

vector<int> find_roads(int on,vector<int> ka,vector<int> la)
{
	long long i,j,k,l,sz,c,mx,lh,rh,md,zz;
	bool bad;
	vector<int> v;
	
	n=on;
	m=ka.size();
	for(i=1;i<=n;i++)
	{
		dsu[i]=i;
	}
	for(i=1;i<=m;i++)
	{
		k=ka[i-1]+1;
		l=la[i-1]+1;
		ed[i]={k,l};
		if(fd(k)!=fd(l))
		{
			dsu[fd(l)]=fd(k);
			nn++;
			ex[nn]=i;
			spc[i]=1;
			al[k].push_back({l,nn});
			al[l].push_back({k,nn});
			v.push_back(i-1);
			kd[nn]=1;
		}
	}
	bd(1);
	c=count_common_roads(v);
	for(i=1;i<=n;i++)
	{
		dsu[i]=i;
		al[i].clear();
	}
	for(i=1;i<=m;i++)
	{
		k=ed[i].fr;
		l=ed[i].sc;
		al[k].push_back({l,i});
		if(!spc[i]&&fd(k)!=fd(l))
		{
			nm=0;
			mx=c;
			bad=0;
			for(;k!=l;k=pr[k])
			{
				if(dh[k]<dh[l])
				{
					swap(k,l);
				}
				if(!ve[sr[k]]||(!kd[sr[k]]&&!bad))
				{
					v.clear();
					for(j=1;j<=nn;j++)
					{
						if(j!=sr[k])
						{
							v.push_back(ex[j]-1);
						}
					}
					v.push_back(i-1);
					nm++;
					ca[nm]={count_common_roads(v),sr[k]};
					mx=max(mx,ca[nm].fr);
					bad|=ve[sr[k]];
					ve[sr[k]]=1;
				}
				dsu[fd(l)]=fd(k);
			}
			for(j=1;j<=nm;j++)
			{
				k=ca[j].fr;
				l=ca[j].sc;
				kd[l]=k<mx;
			}
		}
	}
	for(i=1;i<=n;i++)
	{
		vtd.reset();
		sz=al[i].size();
		for(;qr(i,sz-1);)
		{
			for(zz=sz-1,lh=0,rh=sz-2;lh<=rh;)
			{
				md=(lh+rh)/2;
				if(qr(i,md))
				{
					zz=md;
					rh=md-1;
				}
				else
				{
					lh=md+1;
				}
			}
			zs++;
			sq[zs]=al[i][zz].sc;
			vtd[zz]=1;
		}
	}
	v.clear();
	for(i=1;i<=zs;i++)
	{
		v.push_back(sq[i]-1);
	}
	return v;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB correct
2 Correct 1 ms 332 KB correct
3 Correct 1 ms 312 KB correct
4 Correct 1 ms 332 KB correct
5 Correct 1 ms 332 KB correct
6 Correct 1 ms 332 KB correct
7 Correct 1 ms 332 KB correct
8 Correct 0 ms 332 KB correct
9 Correct 1 ms 312 KB correct
10 Correct 1 ms 332 KB correct
11 Correct 1 ms 332 KB correct
12 Correct 1 ms 332 KB correct
13 Correct 1 ms 332 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB correct
2 Correct 1 ms 332 KB correct
3 Correct 1 ms 312 KB correct
4 Correct 1 ms 332 KB correct
5 Correct 1 ms 332 KB correct
6 Correct 1 ms 332 KB correct
7 Correct 1 ms 332 KB correct
8 Correct 0 ms 332 KB correct
9 Correct 1 ms 312 KB correct
10 Correct 1 ms 332 KB correct
11 Correct 1 ms 332 KB correct
12 Correct 1 ms 332 KB correct
13 Correct 1 ms 332 KB correct
14 Correct 2 ms 332 KB correct
15 Correct 2 ms 332 KB correct
16 Correct 2 ms 332 KB correct
17 Correct 2 ms 312 KB correct
18 Correct 1 ms 332 KB correct
19 Correct 2 ms 332 KB correct
20 Correct 2 ms 332 KB correct
21 Correct 2 ms 332 KB correct
22 Correct 2 ms 320 KB correct
23 Correct 2 ms 332 KB correct
24 Correct 1 ms 332 KB correct
25 Correct 1 ms 316 KB correct
26 Correct 2 ms 376 KB correct
27 Correct 2 ms 460 KB correct
28 Correct 1 ms 332 KB correct
29 Correct 2 ms 312 KB correct
30 Correct 2 ms 332 KB correct
31 Correct 2 ms 332 KB correct
32 Correct 2 ms 332 KB correct
33 Correct 2 ms 332 KB correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB correct
2 Correct 1 ms 332 KB correct
3 Correct 1 ms 312 KB correct
4 Correct 1 ms 332 KB correct
5 Correct 1 ms 332 KB correct
6 Correct 1 ms 332 KB correct
7 Correct 1 ms 332 KB correct
8 Correct 0 ms 332 KB correct
9 Correct 1 ms 312 KB correct
10 Correct 1 ms 332 KB correct
11 Correct 1 ms 332 KB correct
12 Correct 1 ms 332 KB correct
13 Correct 1 ms 332 KB correct
14 Correct 2 ms 332 KB correct
15 Correct 2 ms 332 KB correct
16 Correct 2 ms 332 KB correct
17 Correct 2 ms 312 KB correct
18 Correct 1 ms 332 KB correct
19 Correct 2 ms 332 KB correct
20 Correct 2 ms 332 KB correct
21 Correct 2 ms 332 KB correct
22 Correct 2 ms 320 KB correct
23 Correct 2 ms 332 KB correct
24 Correct 1 ms 332 KB correct
25 Correct 1 ms 316 KB correct
26 Correct 2 ms 376 KB correct
27 Correct 2 ms 460 KB correct
28 Correct 1 ms 332 KB correct
29 Correct 2 ms 312 KB correct
30 Correct 2 ms 332 KB correct
31 Correct 2 ms 332 KB correct
32 Correct 2 ms 332 KB correct
33 Correct 2 ms 332 KB correct
34 Correct 45 ms 1996 KB correct
35 Correct 49 ms 1936 KB correct
36 Correct 39 ms 1612 KB correct
37 Correct 16 ms 332 KB correct
38 Correct 47 ms 2084 KB correct
39 Correct 44 ms 1848 KB correct
40 Correct 39 ms 1612 KB correct
41 Correct 49 ms 2100 KB correct
42 Correct 41 ms 2096 KB correct
43 Correct 29 ms 1404 KB correct
44 Correct 27 ms 1100 KB correct
45 Correct 31 ms 1164 KB correct
46 Correct 26 ms 972 KB correct
47 Correct 19 ms 656 KB correct
48 Correct 8 ms 332 KB correct
49 Correct 12 ms 332 KB correct
50 Correct 19 ms 588 KB correct
51 Correct 31 ms 1228 KB correct
52 Correct 27 ms 1100 KB correct
53 Correct 26 ms 972 KB correct
54 Correct 30 ms 1344 KB correct
55 Correct 28 ms 1264 KB correct
56 Correct 28 ms 1228 KB correct
57 Correct 28 ms 1228 KB correct

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB correct
2 Correct 1 ms 332 KB correct
3 Correct 133 ms 5228 KB correct
4 Correct 221 ms 8184 KB correct
5 Correct 254 ms 8216 KB correct
6 Correct 197 ms 8188 KB correct
7 Correct 194 ms 8184 KB correct
8 Correct 197 ms 8168 KB correct
9 Correct 220 ms 8132 KB correct
10 Correct 213 ms 8188 KB correct
11 Correct 219 ms 8260 KB correct
12 Correct 220 ms 8184 KB correct
13 Correct 1 ms 332 KB correct
14 Correct 217 ms 8184 KB correct
15 Correct 220 ms 8308 KB correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB correct
2 Correct 1 ms 332 KB correct
3 Correct 1 ms 312 KB correct
4 Correct 1 ms 332 KB correct
5 Correct 1 ms 332 KB correct
6 Correct 1 ms 332 KB correct
7 Correct 1 ms 332 KB correct
8 Correct 0 ms 332 KB correct
9 Correct 1 ms 312 KB correct
10 Correct 1 ms 332 KB correct
11 Correct 1 ms 332 KB correct
12 Correct 1 ms 332 KB correct
13 Correct 1 ms 332 KB correct
14 Correct 2 ms 332 KB correct
15 Correct 2 ms 332 KB correct
16 Correct 2 ms 332 KB correct
17 Correct 2 ms 312 KB correct
18 Correct 1 ms 332 KB correct
19 Correct 2 ms 332 KB correct
20 Correct 2 ms 332 KB correct
21 Correct 2 ms 332 KB correct
22 Correct 2 ms 320 KB correct
23 Correct 2 ms 332 KB correct
24 Correct 1 ms 332 KB correct
25 Correct 1 ms 316 KB correct
26 Correct 2 ms 376 KB correct
27 Correct 2 ms 460 KB correct
28 Correct 1 ms 332 KB correct
29 Correct 2 ms 312 KB correct
30 Correct 2 ms 332 KB correct
31 Correct 2 ms 332 KB correct
32 Correct 2 ms 332 KB correct
33 Correct 2 ms 332 KB correct
34 Correct 45 ms 1996 KB correct
35 Correct 49 ms 1936 KB correct
36 Correct 39 ms 1612 KB correct
37 Correct 16 ms 332 KB correct
38 Correct 47 ms 2084 KB correct
39 Correct 44 ms 1848 KB correct
40 Correct 39 ms 1612 KB correct
41 Correct 49 ms 2100 KB correct
42 Correct 41 ms 2096 KB correct
43 Correct 29 ms 1404 KB correct
44 Correct 27 ms 1100 KB correct
45 Correct 31 ms 1164 KB correct
46 Correct 26 ms 972 KB correct
47 Correct 19 ms 656 KB correct
48 Correct 8 ms 332 KB correct
49 Correct 12 ms 332 KB correct
50 Correct 19 ms 588 KB correct
51 Correct 31 ms 1228 KB correct
52 Correct 27 ms 1100 KB correct
53 Correct 26 ms 972 KB correct
54 Correct 30 ms 1344 KB correct
55 Correct 28 ms 1264 KB correct
56 Correct 28 ms 1228 KB correct
57 Correct 28 ms 1228 KB correct
58 Correct 1 ms 332 KB correct
59 Correct 1 ms 332 KB correct
60 Correct 133 ms 5228 KB correct
61 Correct 221 ms 8184 KB correct
62 Correct 254 ms 8216 KB correct
63 Correct 197 ms 8188 KB correct
64 Correct 194 ms 8184 KB correct
65 Correct 197 ms 8168 KB correct
66 Correct 220 ms 8132 KB correct
67 Correct 213 ms 8188 KB correct
68 Correct 219 ms 8260 KB correct
69 Correct 220 ms 8184 KB correct
70 Correct 1 ms 332 KB correct
71 Correct 217 ms 8184 KB correct
72 Correct 220 ms 8308 KB correct
73 Correct 1 ms 332 KB correct
74 Correct 239 ms 8232 KB correct
75 Correct 217 ms 7620 KB correct
76 Correct 120 ms 2996 KB correct
77 Correct 216 ms 8132 KB correct
78 Correct 224 ms 8116 KB correct
79 Correct 217 ms 8004 KB correct
80 Correct 217 ms 7504 KB correct
81 Correct 195 ms 6464 KB correct
82 Correct 218 ms 7396 KB correct
83 Correct 195 ms 4292 KB correct
84 Correct 152 ms 4892 KB correct
85 Correct 151 ms 4720 KB correct
86 Correct 123 ms 3156 KB correct
87 Correct 112 ms 2380 KB correct
88 Correct 110 ms 1988 KB correct
89 Correct 96 ms 1796 KB correct
90 Correct 90 ms 1612 KB correct
91 Correct 43 ms 496 KB correct
92 Correct 33 ms 332 KB correct
93 Correct 162 ms 4716 KB correct
94 Correct 127 ms 3164 KB correct
95 Correct 126 ms 3052 KB correct
96 Correct 96 ms 1740 KB correct
97 Correct 98 ms 1868 KB correct
98 Correct 114 ms 2492 KB correct
99 Correct 101 ms 1848 KB correct
100 Correct 59 ms 716 KB correct
101 Correct 32 ms 332 KB correct
102 Correct 133 ms 4444 KB correct
103 Correct 138 ms 4300 KB correct
104 Correct 135 ms 4344 KB correct
105 Correct 132 ms 4348 KB correct