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Submission #559602

# Submission time Handle Problem Language Result Execution time Memory
559602 2022-05-10T09:06:46 Z mosiashvililuka Simurgh (IOI17_simurgh) C++14
100 / 100
 212 ms 15460 KB 
#include<bits/stdc++.h>
#include "simurgh.h"
using namespace std;
int a,b,c,d,e,i,j,ii,jj,zx,xc,msh[200009],E,BO[200009],ans[200009],Q[200009],QI,W[200009],WI,p[200009],pi,dep[200009],O[503][503],st,bo[200009],lef,rig,mid,cnt;
pair <int, int> P[200009];
vector <int> v[200009],xe,vv[200009],VV,V;
int fnd(int q){
	if(msh[q]==0) return q; else return msh[q]=fnd(msh[q]);
}
bool mrg(int q, int w){
	q=fnd(q);w=fnd(w);
	if(q==w) return 0;
	msh[q]=w;
	return 1;
}
void dfs(int q, int w){
	msh[q]=w;dep[q]=dep[w]+1;
	for(vector <int>::iterator it=vv[q].begin(); it!=vv[q].end(); it++){
		if((*it)==w) continue;
		dfs((*it),q);
	}
}
vector <int> tofull(vector <int> q){
	vector <int> Q=q;
	cnt++;
	for(int h=0; h<q.size(); h++){
		int we=0;
		if(P[q[h]].first==ii) we=P[q[h]].second; else we=P[q[h]].first;
		int qw=O[we][msh[we]];bo[qw]=cnt;
	}
	for(int h=0; h<xe.size(); h++){
		if(bo[xe[h]]!=cnt){
			Q.push_back(xe[h]);
		}
	}
	return Q;
}
vector<int> find_roads(int Nn, std::vector<int> Uu, std::vector<int> Vv) {
	a=Nn;b=Uu.size();
	for(i=0; i<Uu.size(); i++){
		P[i]={Uu[i]+1,Vv[i]+1};
		v[P[i].first].push_back(P[i].second);v[P[i].second].push_back(P[i].first);
		O[P[i].first][P[i].second]=O[P[i].second][P[i].first]=i;
	}
	for(i=0; i<b; i++){
		E=mrg(P[i].first,P[i].second);
		if(E==1){
			xe.push_back(i);BO[i]=1;
			vv[P[i].first].push_back(P[i].second);vv[P[i].second].push_back(P[i].first);
		}
	}
	st=count_common_roads(xe);
	for(i=0; i<b; i++) ans[i]=2;
	dfs(1,0);
	for(ii=0; ii<b; ii++){
		if(BO[ii]==0){
			QI=0;WI=0;pi=0;
			c=P[ii].first;d=P[ii].second;
			while(c!=d){
				if(dep[c]>=dep[d]){
					QI++;Q[QI]=c;c=msh[c];
				}else{
					WI++;W[WI]=d;d=msh[d];
				}
			}
			QI++;Q[QI]=c;
			for(i=1; i<=QI; i++){
				pi++;p[pi]=Q[i];
			}
			for(i=WI; i>=1; i--){
				pi++;p[pi]=W[i];
			}
			QI=0;
			for(i=1; i<pi; i++){
				c=O[p[i]][p[i+1]];
				if(ans[c]==2){
					QI++;Q[QI]=c;
				}
			}
			if(QI==0) continue;
			E=0;
			for(i=1; i<pi; i++){
				c=O[p[i]][p[i+1]];
				if(ans[c]!=2){
					QI++;Q[QI]=c;E=ans[c];break;
				}
			}
			if(QI==0){
				QI++;Q[QI]=O[p[1]][p[2]];
			}
			WI=0;
			for(i=1; i<=QI; i++){
				VV.clear();
				for(j=0; j<xe.size(); j++){
					if(xe[j]!=Q[i]){
						VV.push_back(xe[j]);
					}
				}
				VV.push_back(ii);
				WI++;W[WI]=count_common_roads(VV);
			}
			WI++;W[WI]=st;zx=0;xc=a+4;Q[WI]=ii;
			for(i=1; i<=WI; i++){
				zx=max(zx,W[i]);xc=min(xc,W[i]);
			}
			for(i=1; i<=WI; i++){
				if(zx==xc){
					ans[Q[i]]=E;
					continue;
				}
				if(W[i]==zx){
					ans[Q[i]]=0;
				}else{
					ans[Q[i]]=1;
				}
			}
		}
	}
	for(ii=0; ii<b; ii++){
		if(BO[ii]==1){
			if(ans[ii]==2) ans[ii]=1;
		}
	}
	for(ii=1; ii<=a; ii++){
		dfs(ii,0);VV.clear();V.clear();
		for(vector <int>::iterator it=v[ii].begin(); it!=v[ii].end(); it++){
			c=O[ii][(*it)];
			if(ans[c]!=2) continue;
			VV.push_back(c);
		}
		if(VV.size()==0) continue;
		V=tofull(VV);
		zx=count_common_roads(V);
		for(int h=0; h<V.size(); h++){
			if(ans[V[h]]==1) zx--;
		}
		E=-1;
		while(zx>0){
			lef=E;rig=VV.size();
			while(1){
				if(lef+1>=rig) break;
				mid=(lef+rig)/2;
				V.clear();
				for(int h=E+1; h<=mid; h++){
					V.push_back(VV[h]);
				}
				V=tofull(V);
				c=count_common_roads(V);
				for(int h=0; h<V.size(); h++){
					if(ans[V[h]]==1) c--;
				}
				if(c>0){
					rig=mid;
				}else{
					lef=mid;
				}
			}
			for(int h=E+1; h<rig; h++) ans[VV[h]]=0;
			ans[VV[rig]]=1;
			zx--;E=rig;
		}
	}
	VV.clear();
	for(ii=0; ii<b; ii++){
		if(ans[ii]==1) VV.push_back(ii);
	}
	return VV;
}

Compilation message

simurgh.cpp: In function 'std::vector<int> tofull(std::vector<int>)':
simurgh.cpp:26:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |  for(int h=0; h<q.size(); h++){
      |               ~^~~~~~~~~
simurgh.cpp:31:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |  for(int h=0; h<xe.size(); h++){
      |               ~^~~~~~~~~~
simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:40:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for(i=0; i<Uu.size(); i++){
      |           ~^~~~~~~~~~
simurgh.cpp:94:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |     for(j=0; j<xe.size(); j++){
      |              ~^~~~~~~~~~
simurgh.cpp:134:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  134 |   for(int h=0; h<V.size(); h++){
      |                ~^~~~~~~~~
simurgh.cpp:149:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  149 |     for(int h=0; h<V.size(); h++){
      |                  ~^~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB correct
2 Correct 6 ms 9812 KB correct
3 Correct 7 ms 9648 KB correct
4 Correct 5 ms 9684 KB correct
5 Correct 7 ms 9684 KB correct
6 Correct 6 ms 9660 KB correct
7 Correct 5 ms 9684 KB correct
8 Correct 5 ms 9684 KB correct
9 Correct 6 ms 9684 KB correct
10 Correct 5 ms 9684 KB correct
11 Correct 4 ms 9740 KB correct
12 Correct 5 ms 9684 KB correct
13 Correct 5 ms 9684 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB correct
2 Correct 6 ms 9812 KB correct
3 Correct 7 ms 9648 KB correct
4 Correct 5 ms 9684 KB correct
5 Correct 7 ms 9684 KB correct
6 Correct 6 ms 9660 KB correct
7 Correct 5 ms 9684 KB correct
8 Correct 5 ms 9684 KB correct
9 Correct 6 ms 9684 KB correct
10 Correct 5 ms 9684 KB correct
11 Correct 4 ms 9740 KB correct
12 Correct 5 ms 9684 KB correct
13 Correct 5 ms 9684 KB correct
14 Correct 6 ms 9812 KB correct
15 Correct 6 ms 9812 KB correct
16 Correct 6 ms 9812 KB correct
17 Correct 6 ms 9812 KB correct
18 Correct 8 ms 9812 KB correct
19 Correct 6 ms 9812 KB correct
20 Correct 6 ms 9788 KB correct
21 Correct 6 ms 9812 KB correct
22 Correct 7 ms 9876 KB correct
23 Correct 8 ms 9856 KB correct
24 Correct 8 ms 9880 KB correct
25 Correct 5 ms 9812 KB correct
26 Correct 6 ms 9812 KB correct
27 Correct 6 ms 9812 KB correct
28 Correct 5 ms 9812 KB correct
29 Correct 5 ms 9812 KB correct
30 Correct 5 ms 9812 KB correct
31 Correct 6 ms 9780 KB correct
32 Correct 5 ms 9888 KB correct
33 Correct 6 ms 9852 KB correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB correct
2 Correct 6 ms 9812 KB correct
3 Correct 7 ms 9648 KB correct
4 Correct 5 ms 9684 KB correct
5 Correct 7 ms 9684 KB correct
6 Correct 6 ms 9660 KB correct
7 Correct 5 ms 9684 KB correct
8 Correct 5 ms 9684 KB correct
9 Correct 6 ms 9684 KB correct
10 Correct 5 ms 9684 KB correct
11 Correct 4 ms 9740 KB correct
12 Correct 5 ms 9684 KB correct
13 Correct 5 ms 9684 KB correct
14 Correct 6 ms 9812 KB correct
15 Correct 6 ms 9812 KB correct
16 Correct 6 ms 9812 KB correct
17 Correct 6 ms 9812 KB correct
18 Correct 8 ms 9812 KB correct
19 Correct 6 ms 9812 KB correct
20 Correct 6 ms 9788 KB correct
21 Correct 6 ms 9812 KB correct
22 Correct 7 ms 9876 KB correct
23 Correct 8 ms 9856 KB correct
24 Correct 8 ms 9880 KB correct
25 Correct 5 ms 9812 KB correct
26 Correct 6 ms 9812 KB correct
27 Correct 6 ms 9812 KB correct
28 Correct 5 ms 9812 KB correct
29 Correct 5 ms 9812 KB correct
30 Correct 5 ms 9812 KB correct
31 Correct 6 ms 9780 KB correct
32 Correct 5 ms 9888 KB correct
33 Correct 6 ms 9852 KB correct
34 Correct 42 ms 11344 KB correct
35 Correct 42 ms 11220 KB correct
36 Correct 36 ms 11056 KB correct
37 Correct 13 ms 10196 KB correct
38 Correct 41 ms 11348 KB correct
39 Correct 37 ms 11216 KB correct
40 Correct 33 ms 10964 KB correct
41 Correct 41 ms 11336 KB correct
42 Correct 43 ms 11340 KB correct
43 Correct 16 ms 10836 KB correct
44 Correct 15 ms 10688 KB correct
45 Correct 15 ms 10708 KB correct
46 Correct 13 ms 10680 KB correct
47 Correct 13 ms 10464 KB correct
48 Correct 8 ms 10196 KB correct
49 Correct 10 ms 10196 KB correct
50 Correct 11 ms 10452 KB correct
51 Correct 15 ms 10704 KB correct
52 Correct 14 ms 10692 KB correct
53 Correct 13 ms 10580 KB correct
54 Correct 15 ms 10836 KB correct
55 Correct 16 ms 10708 KB correct
56 Correct 15 ms 10708 KB correct
57 Correct 16 ms 10776 KB correct

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB correct
2 Correct 5 ms 9684 KB correct
3 Correct 127 ms 13652 KB correct
4 Correct 198 ms 15292 KB correct
5 Correct 167 ms 15308 KB correct
6 Correct 173 ms 15404 KB correct
7 Correct 202 ms 15404 KB correct
8 Correct 152 ms 15308 KB correct
9 Correct 193 ms 15436 KB correct
10 Correct 193 ms 15292 KB correct
11 Correct 177 ms 15352 KB correct
12 Correct 200 ms 15312 KB correct
13 Correct 5 ms 9628 KB correct
14 Correct 171 ms 15340 KB correct
15 Correct 212 ms 15308 KB correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB correct
2 Correct 6 ms 9812 KB correct
3 Correct 7 ms 9648 KB correct
4 Correct 5 ms 9684 KB correct
5 Correct 7 ms 9684 KB correct
6 Correct 6 ms 9660 KB correct
7 Correct 5 ms 9684 KB correct
8 Correct 5 ms 9684 KB correct
9 Correct 6 ms 9684 KB correct
10 Correct 5 ms 9684 KB correct
11 Correct 4 ms 9740 KB correct
12 Correct 5 ms 9684 KB correct
13 Correct 5 ms 9684 KB correct
14 Correct 6 ms 9812 KB correct
15 Correct 6 ms 9812 KB correct
16 Correct 6 ms 9812 KB correct
17 Correct 6 ms 9812 KB correct
18 Correct 8 ms 9812 KB correct
19 Correct 6 ms 9812 KB correct
20 Correct 6 ms 9788 KB correct
21 Correct 6 ms 9812 KB correct
22 Correct 7 ms 9876 KB correct
23 Correct 8 ms 9856 KB correct
24 Correct 8 ms 9880 KB correct
25 Correct 5 ms 9812 KB correct
26 Correct 6 ms 9812 KB correct
27 Correct 6 ms 9812 KB correct
28 Correct 5 ms 9812 KB correct
29 Correct 5 ms 9812 KB correct
30 Correct 5 ms 9812 KB correct
31 Correct 6 ms 9780 KB correct
32 Correct 5 ms 9888 KB correct
33 Correct 6 ms 9852 KB correct
34 Correct 42 ms 11344 KB correct
35 Correct 42 ms 11220 KB correct
36 Correct 36 ms 11056 KB correct
37 Correct 13 ms 10196 KB correct
38 Correct 41 ms 11348 KB correct
39 Correct 37 ms 11216 KB correct
40 Correct 33 ms 10964 KB correct
41 Correct 41 ms 11336 KB correct
42 Correct 43 ms 11340 KB correct
43 Correct 16 ms 10836 KB correct
44 Correct 15 ms 10688 KB correct
45 Correct 15 ms 10708 KB correct
46 Correct 13 ms 10680 KB correct
47 Correct 13 ms 10464 KB correct
48 Correct 8 ms 10196 KB correct
49 Correct 10 ms 10196 KB correct
50 Correct 11 ms 10452 KB correct
51 Correct 15 ms 10704 KB correct
52 Correct 14 ms 10692 KB correct
53 Correct 13 ms 10580 KB correct
54 Correct 15 ms 10836 KB correct
55 Correct 16 ms 10708 KB correct
56 Correct 15 ms 10708 KB correct
57 Correct 16 ms 10776 KB correct
58 Correct 5 ms 9684 KB correct
59 Correct 5 ms 9684 KB correct
60 Correct 127 ms 13652 KB correct
61 Correct 198 ms 15292 KB correct
62 Correct 167 ms 15308 KB correct
63 Correct 173 ms 15404 KB correct
64 Correct 202 ms 15404 KB correct
65 Correct 152 ms 15308 KB correct
66 Correct 193 ms 15436 KB correct
67 Correct 193 ms 15292 KB correct
68 Correct 177 ms 15352 KB correct
69 Correct 200 ms 15312 KB correct
70 Correct 5 ms 9628 KB correct
71 Correct 171 ms 15340 KB correct
72 Correct 212 ms 15308 KB correct
73 Correct 5 ms 9684 KB correct
74 Correct 168 ms 15296 KB correct
75 Correct 186 ms 15252 KB correct
76 Correct 95 ms 12248 KB correct
77 Correct 173 ms 15460 KB correct
78 Correct 171 ms 15344 KB correct
79 Correct 205 ms 15356 KB correct
80 Correct 167 ms 15240 KB correct
81 Correct 145 ms 14740 KB correct
82 Correct 186 ms 15220 KB correct
83 Correct 144 ms 13196 KB correct
84 Correct 53 ms 13652 KB correct
85 Correct 53 ms 13420 KB correct
86 Correct 42 ms 12564 KB correct
87 Correct 37 ms 12160 KB correct
88 Correct 37 ms 11732 KB correct
89 Correct 36 ms 11680 KB correct
90 Correct 31 ms 11604 KB correct
91 Correct 21 ms 10876 KB correct
92 Correct 16 ms 10708 KB correct
93 Correct 50 ms 13396 KB correct
94 Correct 44 ms 12560 KB correct
95 Correct 43 ms 12492 KB correct
96 Correct 37 ms 11640 KB correct
97 Correct 35 ms 11736 KB correct
98 Correct 35 ms 12140 KB correct
99 Correct 33 ms 11744 KB correct
100 Correct 25 ms 11032 KB correct
101 Correct 17 ms 10796 KB correct
102 Correct 52 ms 13088 KB correct
103 Correct 52 ms 13048 KB correct
104 Correct 55 ms 13052 KB correct
105 Correct 62 ms 13012 KB correct