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Submission #1065657

# Submission time Handle Problem Language Result Execution time Memory
1065657 2024-08-19T10:29:21 Z Rawlat_vanak Graph (BOI20_graph) C++17
100 / 100
 98 ms 25564 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define speedIO ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define mod 1000000007
#define f first
#define s second
#define pii pair<int,int>
#define pb push_back

vector<vector<pii>> graph;
vector<pair<int,float>> value;
vector<bool> visited;
vector<int> conectedcomp;
bool possible;
float thex;

void dfs(int u){
	if(visited[u]) return;
	visited[u]=true;
	conectedcomp.pb(u);
	//cout<<u<<'\n';
	for(auto x:graph[u]){
		int v=x.f; int c=x.s;
		//cout<<"hi "<<u<<' '<<v<<'\n';
		if(visited[v]){
			if(value[u].f==-value[v].f){
				if(value[u].s!=c-value[v].s){

					possible=false;
				}
			}else{
				//cout<<"buhhuuhuh "<<u<<' '<<v<<'\n';
				float tmp=c-value[u].s-value[v].s;
				tmp/=(value[v].f+value[u].f);

				if(thex==1e10){
					thex=tmp;
				}else if(thex!=tmp){

					possible=false;
				}

				value[u]={0,tmp*(value[u].f)+value[u].s};
				value[v]={0,tmp*(value[v].f)+value[v].s};
			}
		}else{
			value[v]={-value[u].f,c-value[u].s};
			dfs(v);
		}
	}
}

int32_t main(){
	speedIO;
	int t,n,m,k;

	//cin>>t;
	t=1;
	while(t--){
		//string s;		
		cin>>n>>m;
		graph.resize(n+1);
		value.resize(n+1);
		conectedcomp.clear();
		visited.resize(n+1,false);
		possible=true;
		thex=1e10;
		for(int i=0;i<m;i++){
			int a,b,c;
			cin>>a>>b>>c;
			if(a==b){
				value[a]={0,c/2};
			}
			graph[a].pb({b,c});
			graph[b].pb({a,c});
			
			
		}

		//value[1]={1,0};
		//dfs(1);
		vector<float> ans(n+1);
		for(int i=1;i<=n;i++){
			//cout<<value[i].f<<' '<<value[i].s<<'\n';
			if(visited[i]==false){
				conectedcomp.clear();
				thex=1e10;
				//visited[i]=true;
				value[i]={1,0};
				dfs(i);

				if(thex!=1e10){
					for(int j:conectedcomp){
						value[j]={0,thex*(value[j].f)+value[j].s};
						//cout<<value[j].s<<' ';
						ans[j]=(value[j].s);
					}
				}else{
					vector<float> valss;
					float yyyy=0;
					for(int j:conectedcomp){
						valss.pb(-(value[j].f)*(value[j].s));
						yyyy-=(value[j].f)*(value[j].s);
					}
					sort(valss.rbegin(),valss.rend());
					float tmp=1e10;
					int xxxxx=conectedcomp.size();
					int idx;
					for(int l=0;l<conectedcomp.size();l++){
						//cout<<xxxxx<<' '<<yyyy<<'\n';
						if (tmp>xxxxx*valss[l]-yyyy){
							tmp=xxxxx*valss[l]-yyyy;
							idx=valss[l];
						}
						yyyy-=2*valss[l];
						xxxxx-=2;
					}
					for(int j:conectedcomp){
						ans[j]=idx*(value[j].f)+value[j].s;
					}
				}
			}
		}
		
		if(possible){
			cout<<"YES"<<'\n';
			for(int i=1;i<=n;i++){
				cout<<ans[i]<<' ';
			}
			cout<<'\n';
		}else{
			cout<<"NO"<<'\n';
		}


		
		

		
		


	}
	return 0;
}

Compilation message

Graph.cpp: In function 'int32_t main()':
Graph.cpp:110:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  110 |      for(int l=0;l<conectedcomp.size();l++){
      |                  ~^~~~~~~~~~~~~~~~~~~~
Graph.cpp:56:12: warning: unused variable 'k' [-Wunused-variable]
   56 |  int t,n,m,k;
      |            ^
Graph.cpp:120:17: warning: 'idx' may be used uninitialized in this function [-Wmaybe-uninitialized]
  120 |       ans[j]=idx*(value[j].f)+value[j].s;
      |              ~~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB answer = YES
2 Correct 1 ms 348 KB answer = YES
3 Correct 0 ms 348 KB answer = YES
4 Correct 0 ms 344 KB answer = NO
5 Correct 0 ms 344 KB answer = YES
6 Correct 0 ms 348 KB answer = YES
7 Correct 0 ms 348 KB answer = YES
8 Correct 1 ms 348 KB answer = YES
9 Correct 0 ms 348 KB answer = NO
10 Correct 0 ms 348 KB answer = YES
11 Correct 0 ms 348 KB answer = YES
12 Correct 0 ms 348 KB answer = NO
13 Correct 0 ms 348 KB answer = YES
14 Correct 1 ms 348 KB answer = YES
15 Correct 0 ms 348 KB answer = YES
16 Correct 0 ms 452 KB answer = YES
17 Correct 0 ms 344 KB answer = YES
18 Correct 0 ms 344 KB answer = YES
19 Correct 0 ms 344 KB answer = YES
20 Correct 0 ms 348 KB answer = YES
21 Correct 0 ms 348 KB answer = YES
22 Correct 0 ms 348 KB answer = NO
23 Correct 0 ms 344 KB answer = NO

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB answer = YES
2 Correct 1 ms 348 KB answer = YES
3 Correct 0 ms 348 KB answer = YES
4 Correct 0 ms 344 KB answer = NO
5 Correct 0 ms 344 KB answer = YES
6 Correct 0 ms 348 KB answer = YES
7 Correct 0 ms 348 KB answer = YES
8 Correct 1 ms 348 KB answer = YES
9 Correct 0 ms 348 KB answer = NO
10 Correct 0 ms 348 KB answer = YES
11 Correct 0 ms 348 KB answer = YES
12 Correct 0 ms 348 KB answer = NO
13 Correct 0 ms 348 KB answer = YES
14 Correct 1 ms 348 KB answer = YES
15 Correct 0 ms 348 KB answer = YES
16 Correct 0 ms 452 KB answer = YES
17 Correct 0 ms 344 KB answer = YES
18 Correct 0 ms 344 KB answer = YES
19 Correct 0 ms 344 KB answer = YES
20 Correct 0 ms 348 KB answer = YES
21 Correct 0 ms 348 KB answer = YES
22 Correct 0 ms 348 KB answer = NO
23 Correct 0 ms 344 KB answer = NO
24 Correct 0 ms 348 KB answer = YES
25 Correct 0 ms 348 KB answer = YES
26 Correct 0 ms 348 KB answer = YES
27 Correct 1 ms 348 KB answer = YES
28 Correct 0 ms 348 KB answer = YES
29 Correct 0 ms 348 KB answer = YES
30 Correct 0 ms 348 KB answer = NO
31 Correct 0 ms 452 KB answer = YES
32 Correct 0 ms 348 KB answer = YES
33 Correct 0 ms 348 KB answer = YES
34 Correct 0 ms 348 KB answer = YES
35 Correct 0 ms 348 KB answer = YES
36 Correct 1 ms 348 KB answer = YES

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB answer = YES
2 Correct 1 ms 348 KB answer = YES
3 Correct 0 ms 348 KB answer = YES
4 Correct 0 ms 344 KB answer = NO
5 Correct 0 ms 344 KB answer = YES
6 Correct 0 ms 348 KB answer = YES
7 Correct 0 ms 348 KB answer = YES
8 Correct 1 ms 348 KB answer = YES
9 Correct 0 ms 348 KB answer = NO
10 Correct 0 ms 348 KB answer = YES
11 Correct 0 ms 348 KB answer = YES
12 Correct 0 ms 348 KB answer = NO
13 Correct 0 ms 348 KB answer = YES
14 Correct 1 ms 348 KB answer = YES
15 Correct 0 ms 348 KB answer = YES
16 Correct 0 ms 452 KB answer = YES
17 Correct 0 ms 344 KB answer = YES
18 Correct 0 ms 344 KB answer = YES
19 Correct 0 ms 344 KB answer = YES
20 Correct 0 ms 348 KB answer = YES
21 Correct 0 ms 348 KB answer = YES
22 Correct 0 ms 348 KB answer = NO
23 Correct 0 ms 344 KB answer = NO
24 Correct 0 ms 348 KB answer = YES
25 Correct 0 ms 348 KB answer = YES
26 Correct 0 ms 348 KB answer = YES
27 Correct 1 ms 348 KB answer = YES
28 Correct 0 ms 348 KB answer = YES
29 Correct 0 ms 348 KB answer = YES
30 Correct 0 ms 348 KB answer = NO
31 Correct 0 ms 452 KB answer = YES
32 Correct 0 ms 348 KB answer = YES
33 Correct 0 ms 348 KB answer = YES
34 Correct 0 ms 348 KB answer = YES
35 Correct 0 ms 348 KB answer = YES
36 Correct 1 ms 348 KB answer = YES
37 Correct 0 ms 348 KB answer = YES
38 Correct 0 ms 348 KB answer = YES
39 Correct 0 ms 348 KB answer = YES
40 Correct 1 ms 348 KB answer = YES
41 Correct 1 ms 348 KB answer = NO
42 Correct 1 ms 348 KB answer = YES
43 Correct 1 ms 348 KB answer = YES
44 Correct 1 ms 344 KB answer = YES
45 Correct 1 ms 348 KB answer = YES
46 Correct 1 ms 348 KB answer = YES
47 Correct 1 ms 464 KB answer = YES
48 Correct 1 ms 348 KB answer = YES

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB answer = YES
2 Correct 1 ms 348 KB answer = YES
3 Correct 0 ms 348 KB answer = YES
4 Correct 0 ms 344 KB answer = NO
5 Correct 0 ms 344 KB answer = YES
6 Correct 0 ms 348 KB answer = YES
7 Correct 0 ms 348 KB answer = YES
8 Correct 1 ms 348 KB answer = YES
9 Correct 0 ms 348 KB answer = NO
10 Correct 0 ms 348 KB answer = YES
11 Correct 0 ms 348 KB answer = YES
12 Correct 0 ms 348 KB answer = NO
13 Correct 0 ms 348 KB answer = YES
14 Correct 1 ms 348 KB answer = YES
15 Correct 0 ms 348 KB answer = YES
16 Correct 0 ms 452 KB answer = YES
17 Correct 0 ms 344 KB answer = YES
18 Correct 0 ms 344 KB answer = YES
19 Correct 0 ms 344 KB answer = YES
20 Correct 0 ms 348 KB answer = YES
21 Correct 0 ms 348 KB answer = YES
22 Correct 0 ms 348 KB answer = NO
23 Correct 0 ms 344 KB answer = NO
24 Correct 0 ms 348 KB answer = YES
25 Correct 0 ms 348 KB answer = YES
26 Correct 0 ms 348 KB answer = YES
27 Correct 1 ms 348 KB answer = YES
28 Correct 0 ms 348 KB answer = YES
29 Correct 0 ms 348 KB answer = YES
30 Correct 0 ms 348 KB answer = NO
31 Correct 0 ms 452 KB answer = YES
32 Correct 0 ms 348 KB answer = YES
33 Correct 0 ms 348 KB answer = YES
34 Correct 0 ms 348 KB answer = YES
35 Correct 0 ms 348 KB answer = YES
36 Correct 1 ms 348 KB answer = YES
37 Correct 0 ms 348 KB answer = YES
38 Correct 0 ms 348 KB answer = YES
39 Correct 0 ms 348 KB answer = YES
40 Correct 1 ms 348 KB answer = YES
41 Correct 1 ms 348 KB answer = NO
42 Correct 1 ms 348 KB answer = YES
43 Correct 1 ms 348 KB answer = YES
44 Correct 1 ms 344 KB answer = YES
45 Correct 1 ms 348 KB answer = YES
46 Correct 1 ms 348 KB answer = YES
47 Correct 1 ms 464 KB answer = YES
48 Correct 1 ms 348 KB answer = YES
49 Correct 6 ms 1624 KB answer = YES
50 Correct 11 ms 2064 KB answer = YES
51 Correct 6 ms 1884 KB answer = YES
52 Correct 3 ms 1884 KB answer = NO
53 Correct 1 ms 348 KB answer = YES
54 Correct 2 ms 656 KB answer = YES
55 Correct 3 ms 1096 KB answer = YES
56 Correct 6 ms 1628 KB answer = YES
57 Correct 6 ms 1372 KB answer = YES
58 Correct 6 ms 1524 KB answer = YES
59 Correct 5 ms 1372 KB answer = YES
60 Correct 5 ms 1456 KB answer = YES
61 Correct 5 ms 856 KB answer = YES
62 Correct 39 ms 12368 KB answer = NO
63 Correct 44 ms 12628 KB answer = YES
64 Correct 52 ms 12628 KB answer = NO
65 Correct 39 ms 12628 KB answer = YES
66 Correct 1 ms 600 KB answer = YES

Subtask #5
42.0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB answer = YES
2 Correct 1 ms 348 KB answer = YES
3 Correct 0 ms 348 KB answer = YES
4 Correct 0 ms 344 KB answer = NO
5 Correct 0 ms 344 KB answer = YES
6 Correct 0 ms 348 KB answer = YES
7 Correct 0 ms 348 KB answer = YES
8 Correct 1 ms 348 KB answer = YES
9 Correct 0 ms 348 KB answer = NO
10 Correct 0 ms 348 KB answer = YES
11 Correct 0 ms 348 KB answer = YES
12 Correct 0 ms 348 KB answer = NO
13 Correct 0 ms 348 KB answer = YES
14 Correct 1 ms 348 KB answer = YES
15 Correct 0 ms 348 KB answer = YES
16 Correct 0 ms 452 KB answer = YES
17 Correct 0 ms 344 KB answer = YES
18 Correct 0 ms 344 KB answer = YES
19 Correct 0 ms 344 KB answer = YES
20 Correct 0 ms 348 KB answer = YES
21 Correct 0 ms 348 KB answer = YES
22 Correct 0 ms 348 KB answer = NO
23 Correct 0 ms 344 KB answer = NO
24 Correct 0 ms 348 KB answer = YES
25 Correct 0 ms 348 KB answer = YES
26 Correct 0 ms 348 KB answer = YES
27 Correct 1 ms 348 KB answer = YES
28 Correct 0 ms 348 KB answer = YES
29 Correct 0 ms 348 KB answer = YES
30 Correct 0 ms 348 KB answer = NO
31 Correct 0 ms 452 KB answer = YES
32 Correct 0 ms 348 KB answer = YES
33 Correct 0 ms 348 KB answer = YES
34 Correct 0 ms 348 KB answer = YES
35 Correct 0 ms 348 KB answer = YES
36 Correct 1 ms 348 KB answer = YES
37 Correct 0 ms 348 KB answer = YES
38 Correct 0 ms 348 KB answer = YES
39 Correct 0 ms 348 KB answer = YES
40 Correct 1 ms 348 KB answer = YES
41 Correct 1 ms 348 KB answer = NO
42 Correct 1 ms 348 KB answer = YES
43 Correct 1 ms 348 KB answer = YES
44 Correct 1 ms 344 KB answer = YES
45 Correct 1 ms 348 KB answer = YES
46 Correct 1 ms 348 KB answer = YES
47 Correct 1 ms 464 KB answer = YES
48 Correct 1 ms 348 KB answer = YES
49 Correct 6 ms 1624 KB answer = YES
50 Correct 11 ms 2064 KB answer = YES
51 Correct 6 ms 1884 KB answer = YES
52 Correct 3 ms 1884 KB answer = NO
53 Correct 1 ms 348 KB answer = YES
54 Correct 2 ms 656 KB answer = YES
55 Correct 3 ms 1096 KB answer = YES
56 Correct 6 ms 1628 KB answer = YES
57 Correct 6 ms 1372 KB answer = YES
58 Correct 6 ms 1524 KB answer = YES
59 Correct 5 ms 1372 KB answer = YES
60 Correct 5 ms 1456 KB answer = YES
61 Correct 5 ms 856 KB answer = YES
62 Correct 39 ms 12368 KB answer = NO
63 Correct 44 ms 12628 KB answer = YES
64 Correct 52 ms 12628 KB answer = NO
65 Correct 39 ms 12628 KB answer = YES
66 Correct 1 ms 600 KB answer = YES
67 Correct 55 ms 18744 KB answer = YES
68 Correct 54 ms 18628 KB answer = YES
69 Correct 47 ms 18116 KB answer = YES
70 Correct 71 ms 25564 KB answer = YES
71 Correct 51 ms 18280 KB answer = YES
72 Correct 57 ms 12748 KB answer = YES
73 Correct 52 ms 12236 KB answer = YES
74 Correct 36 ms 11116 KB answer = YES
75 Correct 22 ms 11260 KB answer = NO
76 Correct 7 ms 1968 KB answer = YES
77 Correct 14 ms 3544 KB answer = YES
78 Correct 24 ms 5844 KB answer = YES
79 Correct 53 ms 11084 KB answer = YES
80 Correct 40 ms 11208 KB answer = YES
81 Correct 34 ms 14788 KB answer = NO
82 Correct 59 ms 17864 KB answer = YES
83 Correct 65 ms 18884 KB answer = YES
84 Correct 68 ms 19140 KB answer = YES
85 Correct 59 ms 18628 KB answer = YES
86 Correct 56 ms 18120 KB answer = YES
87 Correct 45 ms 13916 KB answer = NO
88 Correct 67 ms 14796 KB answer = YES
89 Correct 52 ms 11088 KB answer = YES
90 Correct 54 ms 11092 KB answer = YES
91 Correct 54 ms 11604 KB answer = YES
92 Correct 28 ms 6360 KB answer = YES
93 Correct 26 ms 6356 KB answer = YES
94 Correct 43 ms 19140 KB answer = NO
95 Correct 31 ms 11352 KB answer = NO
96 Correct 98 ms 22736 KB answer = YES
97 Correct 31 ms 18628 KB answer = NO