oj.uz

Submission #165347

# Submission time Handle Problem Language Result Execution time Memory
165347 2019-11-26T12:55:05 Z Segtree Simurgh (IOI17_simurgh) C++14
51 / 100
 399 ms 3520 KB 
#include<iostream>
#include<vector>
#include<unordered_set>
#include<unordered_map>
#include"simurgh.h"
using namespace std;
typedef long long ll;
typedef pair<ll,ll> P;
#define chmin(a,b) a=min(a,b)
#define chmax(a,b) a=max(a,b)
#define N 250



vector<P> g[N];
unordered_set<int> vis;
vector<int> edges;
int blg[N];
void dfs(ll x,ll eid,ll root){
    if(vis.find(x)!=vis.end())return;
    vis.insert(x);
    if(-1!=eid)edges.push_back(eid);
    blg[x]=root;
    for(auto y:g[x]){
	dfs(y.first,y.second,root);
    }
}
int isans[N*N];
vector<int> find_roads(int n,vector<int> u,vector<int> v){
    for(int i=0;i<u.size();i++){
	g[u[i]].push_back(make_pair(v[i],i));
	g[v[i]].push_back(make_pair(u[i],i));
	isans[i]=-1;
    }
    vector<int> ans;
    for(int i=0;i<n;i++){
	edges.clear();
	vis.clear();
	vis.insert(i);
	for(int j=0;j<n;j++){
	    dfs(j,-1,j);
	}
	unordered_map<ll,vector<int> >mas;
	for(auto e:g[i]){
	    mas[blg[e.first]].push_back(e.second);
	}
	for(auto v:mas){
	    for(auto vv:mas){
		if(v!=vv)edges.push_back(vv.second[0]);
	    }
	    int ma=-1;
	    unordered_map<int,int> sav;
	    int resu=-1,resd=-1;
	    for(auto e:v.second){
		edges.push_back(e);
		//if(edges.size()<n-1)cout<<1/0<<endl;
		if(isans[e]==1){
		    if(resu==-1)resu=count_common_roads(edges);
		    sav[e]=resu;
		}
		if(isans[e]==0){
		    if(resd==-1)resd=count_common_roads(edges);
		    sav[e]=resd;
		}
		if(isans[e]==-1){
		    sav[e]=count_common_roads(edges);
		}
		chmax(ma,sav[e]);
		edges.pop_back();
	    }
	    for(auto e:v.second){
		if(sav[e]==ma){
		    if(isans[e]==-1)ans.push_back(e);
		    isans[e]=1;
		}
		else isans[e]=0;
	    }
	    for(auto vv:mas){
		if(v!=vv)edges.pop_back();
	    }
	}
    }
    if(ans.size()!=n-1)cout<<1/0<<endl;
    return ans;
}

Compilation message

simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:30:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<u.size();i++){
                 ~^~~~~~~~~
simurgh.cpp:83:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(ans.size()!=n-1)cout<<1/0<<endl;
        ~~~~~~~~~~^~~~~
simurgh.cpp:83:31: warning: division by zero [-Wdiv-by-zero]
     if(ans.size()!=n-1)cout<<1/0<<endl;
                              ~^~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB correct
2 Correct 2 ms 376 KB correct
3 Correct 2 ms 376 KB correct
4 Correct 2 ms 376 KB correct
5 Correct 2 ms 376 KB correct
6 Correct 2 ms 376 KB correct
7 Correct 2 ms 376 KB correct
8 Correct 2 ms 256 KB correct
9 Correct 11 ms 256 KB correct
10 Correct 2 ms 248 KB correct
11 Correct 2 ms 252 KB correct
12 Correct 2 ms 256 KB correct
13 Correct 2 ms 376 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB correct
2 Correct 2 ms 376 KB correct
3 Correct 2 ms 376 KB correct
4 Correct 2 ms 376 KB correct
5 Correct 2 ms 376 KB correct
6 Correct 2 ms 376 KB correct
7 Correct 2 ms 376 KB correct
8 Correct 2 ms 256 KB correct
9 Correct 11 ms 256 KB correct
10 Correct 2 ms 248 KB correct
11 Correct 2 ms 252 KB correct
12 Correct 2 ms 256 KB correct
13 Correct 2 ms 376 KB correct
14 Correct 7 ms 376 KB correct
15 Correct 6 ms 376 KB correct
16 Correct 7 ms 376 KB correct
17 Correct 6 ms 376 KB correct
18 Correct 4 ms 376 KB correct
19 Correct 6 ms 376 KB correct
20 Correct 6 ms 380 KB correct
21 Correct 6 ms 376 KB correct
22 Correct 5 ms 376 KB correct
23 Correct 5 ms 376 KB correct
24 Correct 4 ms 376 KB correct
25 Correct 3 ms 376 KB correct
26 Correct 4 ms 376 KB correct
27 Correct 4 ms 376 KB correct
28 Correct 4 ms 376 KB correct
29 Correct 3 ms 376 KB correct
30 Correct 4 ms 380 KB correct
31 Correct 17 ms 376 KB correct
32 Correct 4 ms 376 KB correct
33 Correct 5 ms 376 KB correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB correct
2 Correct 2 ms 376 KB correct
3 Correct 2 ms 376 KB correct
4 Correct 2 ms 376 KB correct
5 Correct 2 ms 376 KB correct
6 Correct 2 ms 376 KB correct
7 Correct 2 ms 376 KB correct
8 Correct 2 ms 256 KB correct
9 Correct 11 ms 256 KB correct
10 Correct 2 ms 248 KB correct
11 Correct 2 ms 252 KB correct
12 Correct 2 ms 256 KB correct
13 Correct 2 ms 376 KB correct
14 Correct 7 ms 376 KB correct
15 Correct 6 ms 376 KB correct
16 Correct 7 ms 376 KB correct
17 Correct 6 ms 376 KB correct
18 Correct 4 ms 376 KB correct
19 Correct 6 ms 376 KB correct
20 Correct 6 ms 380 KB correct
21 Correct 6 ms 376 KB correct
22 Correct 5 ms 376 KB correct
23 Correct 5 ms 376 KB correct
24 Correct 4 ms 376 KB correct
25 Correct 3 ms 376 KB correct
26 Correct 4 ms 376 KB correct
27 Correct 4 ms 376 KB correct
28 Correct 4 ms 376 KB correct
29 Correct 3 ms 376 KB correct
30 Correct 4 ms 380 KB correct
31 Correct 17 ms 376 KB correct
32 Correct 4 ms 376 KB correct
33 Correct 5 ms 376 KB correct
34 Correct 385 ms 1996 KB correct
35 Correct 362 ms 2140 KB correct
36 Correct 258 ms 2040 KB correct
37 Correct 26 ms 376 KB correct
38 Correct 377 ms 2168 KB correct
39 Correct 325 ms 2168 KB correct
40 Correct 256 ms 2044 KB correct
41 Correct 399 ms 2296 KB correct
42 Correct 377 ms 2296 KB correct
43 Correct 221 ms 1656 KB correct
44 Correct 195 ms 1272 KB correct
45 Correct 195 ms 1272 KB correct
46 Correct 151 ms 1272 KB correct
47 Correct 72 ms 760 KB correct
48 Correct 15 ms 376 KB correct
49 Correct 29 ms 504 KB correct
50 Correct 78 ms 760 KB correct
51 Correct 203 ms 1308 KB correct
52 Correct 169 ms 1276 KB correct
53 Correct 148 ms 1016 KB correct
54 Correct 222 ms 1656 KB correct
55 Correct 195 ms 1276 KB correct
56 Correct 192 ms 1296 KB correct
57 Correct 195 ms 1400 KB correct

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 476 KB correct
2 Correct 2 ms 376 KB correct
3 Runtime error 34 ms 3520 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB correct
2 Correct 2 ms 376 KB correct
3 Correct 2 ms 376 KB correct
4 Correct 2 ms 376 KB correct
5 Correct 2 ms 376 KB correct
6 Correct 2 ms 376 KB correct
7 Correct 2 ms 376 KB correct
8 Correct 2 ms 256 KB correct
9 Correct 11 ms 256 KB correct
10 Correct 2 ms 248 KB correct
11 Correct 2 ms 252 KB correct
12 Correct 2 ms 256 KB correct
13 Correct 2 ms 376 KB correct
14 Correct 7 ms 376 KB correct
15 Correct 6 ms 376 KB correct
16 Correct 7 ms 376 KB correct
17 Correct 6 ms 376 KB correct
18 Correct 4 ms 376 KB correct
19 Correct 6 ms 376 KB correct
20 Correct 6 ms 380 KB correct
21 Correct 6 ms 376 KB correct
22 Correct 5 ms 376 KB correct
23 Correct 5 ms 376 KB correct
24 Correct 4 ms 376 KB correct
25 Correct 3 ms 376 KB correct
26 Correct 4 ms 376 KB correct
27 Correct 4 ms 376 KB correct
28 Correct 4 ms 376 KB correct
29 Correct 3 ms 376 KB correct
30 Correct 4 ms 380 KB correct
31 Correct 17 ms 376 KB correct
32 Correct 4 ms 376 KB correct
33 Correct 5 ms 376 KB correct
34 Correct 385 ms 1996 KB correct
35 Correct 362 ms 2140 KB correct
36 Correct 258 ms 2040 KB correct
37 Correct 26 ms 376 KB correct
38 Correct 377 ms 2168 KB correct
39 Correct 325 ms 2168 KB correct
40 Correct 256 ms 2044 KB correct
41 Correct 399 ms 2296 KB correct
42 Correct 377 ms 2296 KB correct
43 Correct 221 ms 1656 KB correct
44 Correct 195 ms 1272 KB correct
45 Correct 195 ms 1272 KB correct
46 Correct 151 ms 1272 KB correct
47 Correct 72 ms 760 KB correct
48 Correct 15 ms 376 KB correct
49 Correct 29 ms 504 KB correct
50 Correct 78 ms 760 KB correct
51 Correct 203 ms 1308 KB correct
52 Correct 169 ms 1276 KB correct
53 Correct 148 ms 1016 KB correct
54 Correct 222 ms 1656 KB correct
55 Correct 195 ms 1276 KB correct
56 Correct 192 ms 1296 KB correct
57 Correct 195 ms 1400 KB correct
58 Correct 2 ms 476 KB correct
59 Correct 2 ms 376 KB correct
60 Runtime error 34 ms 3520 KB Execution killed with signal 11 (could be triggered by violating memory limits)
61 Halted 0 ms 0 KB -