oj.uz

Submission #283958

# Submission time Handle Problem Language Result Execution time Memory
283958 2020-08-26T10:05:23 Z hank55663 Simurgh (IOI17_simurgh) C++14
51 / 100
 352 ms 2296 KB 
#include "simurgh.h"
#define x first
#define y second
#define pb push_back
#include<bits/stdc++.h>
using namespace std;
int f[505];
int f2[505];
int Find(int x){
	if(f[x]==x)return x;
	return f[x]=Find(f[x]);
}
int Find2(int x){
	if(f2[x]==x)return x;
	return f2[x]=Find2(f2[x]);
}
int check[250500];
int ok[250500];
std::vector<int> find_roads(int n, std::vector<int> u, std::vector<int> v) {
	vector<int> ans;
	int m=u.size();
	for(int i = 0;i<n;i++)f2[i]=i;
	for(int i = 0;i<n;i++){
		for(int j=0;j<n;j++)f[j]=Find2(j);
		vector<int> road;
		vector<int> road2;
		vector<int> candidate;
		for(int j = 0;j<m;j++){
			if(Find2(u[j])!=Find2(i)&&Find2(v[j])!=Find2(i)){
				if(Find(u[j])!=Find(v[j])&&Find2(u[j])!=Find2(v[j])){
					road.pb(j);
					f[Find(u[j])]=Find(v[j]);
				}
			}
			else if(Find2(u[j])!=Find2(i)||Find2(v[j])!=Find2(i)){
				candidate.pb(j);
				//printf("%d %d\n",i,j);
			}
		}
		map<int,vector<int> > m;
		for(auto it:candidate){
			if(Find2(u[it])==Find2(i)){
				m[Find(v[it])].pb(it);
			}
			else{
				m[Find(u[it])].pb(it);
			}
		}
		vector<pair<int,vector<int> > > vv;
		for(auto it:m){
			vv.pb(it);
			road2.pb(it.y[0]);
		}
		for(auto it:road){
			road2.pb(it);
		}
		for(auto it:ans)road2.pb(it);
		swap(road,road2);
		for(int i = 0;i<vv.size();i++){
			int x=-1;
			for(auto it:vv[i].y){
				if(check[it]){
					x=it;
					break;
				}
			}
			if(x!=-1)
			road[i]=x;
		}
		int x=count_common_roads(road);
//		printf("!\n");
		for(int j = 0;j<vv.size();j++){
			int need=x;
			int now=road[j];
			vector<int> res;
			if(check[now]&&!ok[now])need++;
			for(auto it:vv[j].y){
				if(!check[it]){
					road[j]=it;
					int y=count_common_roads(road);
				//	printf("! %d\n",it);
					if(y>need){
						res.clear();
						need=y;
					}
					if(y==need){
						res.push_back(it);
					}
				}
			}
			for(auto it:res){
				check[it]=1,ok[it]=1,ans.pb(it);//printf("%d\n",it);
				f2[Find2(v[it])]=Find2(u[it]);
			}
			for(auto it:vv[j].y){
				if(!check[it]){
					check[it]=1;
					ok[it]=0;
				}
			}
			road[j]=now;
		//	printf("%d end\n",i);
		}
	}
	return ans;
}

Compilation message

simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:59:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::vector<int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |   for(int i = 0;i<vv.size();i++){
      |                 ~^~~~~~~~~~
simurgh.cpp:72:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::vector<int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |   for(int j = 0;j<vv.size();j++){
      |                 ~^~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB correct
2 Correct 1 ms 256 KB correct
3 Correct 1 ms 256 KB correct
4 Correct 0 ms 384 KB correct
5 Correct 1 ms 384 KB correct
6 Correct 0 ms 256 KB correct
7 Correct 1 ms 256 KB correct
8 Correct 0 ms 384 KB correct
9 Correct 0 ms 256 KB correct
10 Correct 1 ms 384 KB correct
11 Correct 1 ms 256 KB correct
12 Correct 0 ms 256 KB correct
13 Correct 1 ms 256 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB correct
2 Correct 1 ms 256 KB correct
3 Correct 1 ms 256 KB correct
4 Correct 0 ms 384 KB correct
5 Correct 1 ms 384 KB correct
6 Correct 0 ms 256 KB correct
7 Correct 1 ms 256 KB correct
8 Correct 0 ms 384 KB correct
9 Correct 0 ms 256 KB correct
10 Correct 1 ms 384 KB correct
11 Correct 1 ms 256 KB correct
12 Correct 0 ms 256 KB correct
13 Correct 1 ms 256 KB correct
14 Correct 4 ms 384 KB correct
15 Correct 4 ms 384 KB correct
16 Correct 5 ms 512 KB correct
17 Correct 3 ms 384 KB correct
18 Correct 2 ms 384 KB correct
19 Correct 5 ms 384 KB correct
20 Correct 3 ms 384 KB correct
21 Correct 3 ms 384 KB correct
22 Correct 3 ms 384 KB correct
23 Correct 3 ms 384 KB correct
24 Correct 2 ms 384 KB correct
25 Correct 2 ms 384 KB correct
26 Correct 2 ms 384 KB correct
27 Correct 2 ms 384 KB correct
28 Correct 1 ms 384 KB correct
29 Correct 1 ms 384 KB correct
30 Correct 2 ms 384 KB correct
31 Correct 2 ms 384 KB correct
32 Correct 2 ms 384 KB correct
33 Correct 2 ms 384 KB correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB correct
2 Correct 1 ms 256 KB correct
3 Correct 1 ms 256 KB correct
4 Correct 0 ms 384 KB correct
5 Correct 1 ms 384 KB correct
6 Correct 0 ms 256 KB correct
7 Correct 1 ms 256 KB correct
8 Correct 0 ms 384 KB correct
9 Correct 0 ms 256 KB correct
10 Correct 1 ms 384 KB correct
11 Correct 1 ms 256 KB correct
12 Correct 0 ms 256 KB correct
13 Correct 1 ms 256 KB correct
14 Correct 4 ms 384 KB correct
15 Correct 4 ms 384 KB correct
16 Correct 5 ms 512 KB correct
17 Correct 3 ms 384 KB correct
18 Correct 2 ms 384 KB correct
19 Correct 5 ms 384 KB correct
20 Correct 3 ms 384 KB correct
21 Correct 3 ms 384 KB correct
22 Correct 3 ms 384 KB correct
23 Correct 3 ms 384 KB correct
24 Correct 2 ms 384 KB correct
25 Correct 2 ms 384 KB correct
26 Correct 2 ms 384 KB correct
27 Correct 2 ms 384 KB correct
28 Correct 1 ms 384 KB correct
29 Correct 1 ms 384 KB correct
30 Correct 2 ms 384 KB correct
31 Correct 2 ms 384 KB correct
32 Correct 2 ms 384 KB correct
33 Correct 2 ms 384 KB correct
34 Correct 335 ms 1312 KB correct
35 Correct 349 ms 1260 KB correct
36 Correct 239 ms 1008 KB correct
37 Correct 18 ms 384 KB correct
38 Correct 352 ms 1376 KB correct
39 Correct 258 ms 1164 KB correct
40 Correct 226 ms 1028 KB correct
41 Correct 343 ms 1144 KB correct
42 Correct 329 ms 1024 KB correct
43 Correct 190 ms 888 KB correct
44 Correct 143 ms 760 KB correct
45 Correct 171 ms 760 KB correct
46 Correct 129 ms 640 KB correct
47 Correct 58 ms 512 KB correct
48 Correct 8 ms 384 KB correct
49 Correct 20 ms 384 KB correct
50 Correct 58 ms 508 KB correct
51 Correct 170 ms 1016 KB correct
52 Correct 159 ms 640 KB correct
53 Correct 131 ms 632 KB correct
54 Correct 184 ms 760 KB correct
55 Correct 183 ms 840 KB correct
56 Correct 171 ms 760 KB correct
57 Correct 164 ms 716 KB correct

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB correct
2 Correct 0 ms 384 KB correct
3 Incorrect 169 ms 2296 KB WA in grader: NO
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB correct
2 Correct 1 ms 256 KB correct
3 Correct 1 ms 256 KB correct
4 Correct 0 ms 384 KB correct
5 Correct 1 ms 384 KB correct
6 Correct 0 ms 256 KB correct
7 Correct 1 ms 256 KB correct
8 Correct 0 ms 384 KB correct
9 Correct 0 ms 256 KB correct
10 Correct 1 ms 384 KB correct
11 Correct 1 ms 256 KB correct
12 Correct 0 ms 256 KB correct
13 Correct 1 ms 256 KB correct
14 Correct 4 ms 384 KB correct
15 Correct 4 ms 384 KB correct
16 Correct 5 ms 512 KB correct
17 Correct 3 ms 384 KB correct
18 Correct 2 ms 384 KB correct
19 Correct 5 ms 384 KB correct
20 Correct 3 ms 384 KB correct
21 Correct 3 ms 384 KB correct
22 Correct 3 ms 384 KB correct
23 Correct 3 ms 384 KB correct
24 Correct 2 ms 384 KB correct
25 Correct 2 ms 384 KB correct
26 Correct 2 ms 384 KB correct
27 Correct 2 ms 384 KB correct
28 Correct 1 ms 384 KB correct
29 Correct 1 ms 384 KB correct
30 Correct 2 ms 384 KB correct
31 Correct 2 ms 384 KB correct
32 Correct 2 ms 384 KB correct
33 Correct 2 ms 384 KB correct
34 Correct 335 ms 1312 KB correct
35 Correct 349 ms 1260 KB correct
36 Correct 239 ms 1008 KB correct
37 Correct 18 ms 384 KB correct
38 Correct 352 ms 1376 KB correct
39 Correct 258 ms 1164 KB correct
40 Correct 226 ms 1028 KB correct
41 Correct 343 ms 1144 KB correct
42 Correct 329 ms 1024 KB correct
43 Correct 190 ms 888 KB correct
44 Correct 143 ms 760 KB correct
45 Correct 171 ms 760 KB correct
46 Correct 129 ms 640 KB correct
47 Correct 58 ms 512 KB correct
48 Correct 8 ms 384 KB correct
49 Correct 20 ms 384 KB correct
50 Correct 58 ms 508 KB correct
51 Correct 170 ms 1016 KB correct
52 Correct 159 ms 640 KB correct
53 Correct 131 ms 632 KB correct
54 Correct 184 ms 760 KB correct
55 Correct 183 ms 840 KB correct
56 Correct 171 ms 760 KB correct
57 Correct 164 ms 716 KB correct
58 Correct 1 ms 384 KB correct
59 Correct 0 ms 384 KB correct
60 Incorrect 169 ms 2296 KB WA in grader: NO
61 Halted 0 ms 0 KB -