Submission #1079596

# Submission time Handle Problem Language Result Execution time Memory
1079596 2024-08-28T18:23:37 Z mindiyak Dreaming (IOI13_dreaming) C++14
59 / 100
1000 ms 14660 KB
#include "dreaming.h"
#include <bits/stdc++.h>
#include <string>
#include <iostream>
#include <cmath>
#include <numeric>
#include <iomanip>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<int, int> pl;
typedef pair<ld, ld> pd;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<vector<int>> vvi;
typedef vector<ld> vd;
typedef vector<long> vl;
typedef vector<ull> vull;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<vpi> vvpi;
#define FOR(i, a, b) for (int i = a; i < (b); i++)
#define F0R(i, a) for (int i = 0; i < (a); i++)
#define FORd(i, a, b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i, a) for (int i = (a)-1; i >= 0; i--)
#define trav(a, x) for (auto &a : x)
#define uid(a, b) uniform_int_distribution<int>(a, b)(rng)
#define len(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define F first
#define nl endl
#define S second
#define lb lower_bound
#define ub upper_bound
#define aint(x) x.begin(), x.end()
#define raint(x) x.rbegin(), x.rend()
#define ins insert
const int MOD = 1000000007;
 
vi visited;
vvpi paths;
vi prev_arr;
set<int> backtrack;
int node = 0;
int maxdist = 0;
int ans = 0;
int n;
 
void dij(int pos){
    vi dist(n,-1);
    prev_arr = vi(n,-1);
 
    queue<int> p;
    p.push(pos);
    dist[pos] = 0;
 
    while(!p.empty()){
        int a = p.front();p.pop();
        visited[a] = 1;
 
        for(auto b:paths[a]){
            if(a!= pos && prev_arr[a] == b.F)continue;
            dist[b.F] = dist[a] + b.S;
            p.push(b.F);
            prev_arr[b.F] = a;
        }
    }
 
    FOR(i,0,n){
        if(dist[i] > maxdist){
            maxdist = dist[i];
            node = i;
        }
    }
}
 
void dij2(int pos,int mxdst){
    vi dist(n,-1);
    vi dist2(n,-1);
    prev_arr = vi(n,-1);
 
    queue<int> p;
    p.push(pos);
    dist[pos] = 0;
    dist2[pos] = mxdst;
 
    while(!p.empty()){
        int a = p.front();p.pop();
 
        for(auto b:paths[a]){
            if(backtrack.count(b.F) == 0)continue;
            if(a!= pos && prev_arr[a] == b.F)continue;
            
            dist[b.F] = dist[a] + b.S;
            dist2[b.F] = dist2[a] - b.S;
            p.push(b.F);
            prev_arr[b.F] = a;
            if(max(dist[b.F],dist2[b.F]) < maxdist){
                maxdist = max(dist[b.F],dist2[b.F]);
                node = b.F;
            }
        }
    }
}
 
void go_back(int pos){
    backtrack.insert(pos);
    while(prev_arr[pos] != -1){
        backtrack.insert(prev_arr[pos]);
        pos = prev_arr[pos];
    }
}
 
int travelTime(int N, int m, int L, int A[], int B[], int T[]) {
    if(n==1)return 0;
    n = N;
    paths = vvpi(n);
    visited = vi(n,0);
    vi distances(n,0);
    ans = 0;
    int cnt = 0;
 
    FOR(i,0,m){
        paths[A[i]].pb({B[i],T[i]});
        paths[B[i]].pb({A[i],T[i]});
    }
 
    for(int i=0;i<n;i++){
        if(visited[i])continue;
        maxdist = 0;
        node = i;
        dij(i);
        cerr << i << " " << node << " " << maxdist << endl;
 
        maxdist = 0;
        int head = node;
        node = i;
        dij(head);
        cerr << "width " << head << " " << node << " " << maxdist << endl;
 
        ans = max(ans,maxdist);
 
        backtrack.clear();
        go_back(node);
 
        cerr << "path - ";
        for(int a:backtrack)cerr << a << " ";
        cerr << endl;
 
        dij2(node,maxdist);       
 
        head = node;
        maxdist = 0;
        dij(head);
 
        cerr << "center " << head << " " << maxdist << endl;
        cerr << endl;
 
        distances[i] = maxdist;
        cnt += 1;
    }
 
    sort(distances.rbegin(),distances.rend());
 
    if(m == n-1)return ans;
 
    if(cnt >= 2)ans = max(ans,distances[0]+distances[1]+L);
    if(cnt >= 3)ans = max(ans,distances[1]+distances[2]+L+L);

    return ans;
    
}
# Verdict Execution time Memory Grader output
1 Correct 316 ms 13228 KB Output is correct
2 Correct 276 ms 13404 KB Output is correct
3 Correct 188 ms 8748 KB Output is correct
4 Correct 52 ms 2160 KB Output is correct
5 Correct 27 ms 1628 KB Output is correct
6 Correct 63 ms 3280 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 115 ms 5360 KB Output is correct
9 Correct 173 ms 7100 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 222 ms 9252 KB Output is correct
12 Correct 253 ms 11196 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 408 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 316 ms 13228 KB Output is correct
2 Correct 276 ms 13404 KB Output is correct
3 Correct 188 ms 8748 KB Output is correct
4 Correct 52 ms 2160 KB Output is correct
5 Correct 27 ms 1628 KB Output is correct
6 Correct 63 ms 3280 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 115 ms 5360 KB Output is correct
9 Correct 173 ms 7100 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 222 ms 9252 KB Output is correct
12 Correct 253 ms 11196 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 408 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 296 ms 13220 KB Output is correct
40 Correct 281 ms 13436 KB Output is correct
41 Correct 215 ms 8776 KB Output is correct
42 Correct 46 ms 2140 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 344 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 46 ms 10172 KB Output is correct
58 Correct 44 ms 10164 KB Output is correct
59 Correct 58 ms 10336 KB Output is correct
60 Correct 47 ms 10432 KB Output is correct
61 Correct 43 ms 10384 KB Output is correct
62 Correct 42 ms 10816 KB Output is correct
63 Correct 38 ms 9912 KB Output is correct
64 Correct 38 ms 9920 KB Output is correct
65 Correct 43 ms 9964 KB Output is correct
66 Correct 37 ms 10000 KB Output is correct
67 Correct 43 ms 10304 KB Output is correct
68 Correct 44 ms 10312 KB Output is correct
69 Correct 49 ms 10592 KB Output is correct
70 Correct 48 ms 10304 KB Output is correct
71 Correct 1 ms 344 KB Output is correct
72 Correct 3 ms 604 KB Output is correct
73 Correct 2 ms 604 KB Output is correct
74 Correct 2 ms 760 KB Output is correct
75 Correct 2 ms 604 KB Output is correct
76 Correct 1 ms 604 KB Output is correct
77 Correct 3 ms 856 KB Output is correct
78 Correct 3 ms 600 KB Output is correct
79 Correct 2 ms 752 KB Output is correct
80 Correct 47 ms 10396 KB Output is correct
81 Correct 50 ms 10468 KB Output is correct
82 Correct 47 ms 10364 KB Output is correct
83 Correct 44 ms 10520 KB Output is correct
84 Correct 2 ms 604 KB Output is correct
85 Correct 2 ms 604 KB Output is correct
86 Correct 2 ms 604 KB Output is correct
87 Correct 2 ms 604 KB Output is correct
88 Correct 2 ms 600 KB Output is correct
89 Correct 2 ms 604 KB Output is correct
90 Correct 3 ms 604 KB Output is correct
91 Correct 2 ms 604 KB Output is correct
92 Correct 2 ms 604 KB Output is correct
93 Correct 2 ms 604 KB Output is correct
94 Correct 0 ms 348 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 1 ms 348 KB Output is correct
97 Correct 1 ms 348 KB Output is correct
98 Correct 1 ms 360 KB Output is correct
99 Correct 1 ms 348 KB Output is correct
100 Correct 1 ms 344 KB Output is correct
101 Correct 1 ms 348 KB Output is correct
102 Correct 1 ms 424 KB Output is correct
103 Correct 0 ms 348 KB Output is correct
104 Correct 28 ms 1628 KB Output is correct
105 Correct 58 ms 3156 KB Output is correct
106 Correct 3 ms 348 KB Output is correct
107 Correct 132 ms 5400 KB Output is correct
108 Correct 154 ms 7016 KB Output is correct
109 Correct 2 ms 344 KB Output is correct
110 Correct 229 ms 9344 KB Output is correct
111 Correct 302 ms 11340 KB Output is correct
112 Correct 3 ms 348 KB Output is correct
113 Correct 362 ms 14660 KB Output is correct
# Verdict Execution time Memory Grader output
1 Execution timed out 1053 ms 7548 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 408 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 6 ms 348 KB Output is correct
27 Correct 14 ms 672 KB Output is correct
28 Correct 20 ms 796 KB Output is correct
29 Correct 6 ms 348 KB Output is correct
30 Correct 13 ms 464 KB Output is correct
31 Correct 20 ms 800 KB Output is correct
32 Correct 7 ms 560 KB Output is correct
33 Correct 11 ms 492 KB Output is correct
34 Correct 26 ms 796 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 440 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 3 ms 348 KB Output is correct
41 Correct 2 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 1 ms 444 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 352 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 8 ms 860 KB Output is correct
55 Correct 9 ms 868 KB Output is correct
56 Correct 47 ms 764 KB Output is correct
57 Correct 99 ms 708 KB Output is correct
58 Correct 4 ms 764 KB Output is correct
59 Correct 4 ms 872 KB Output is correct
60 Correct 65 ms 760 KB Output is correct
61 Correct 80 ms 616 KB Output is correct
62 Correct 3 ms 616 KB Output is correct
63 Correct 3 ms 616 KB Output is correct
64 Correct 96 ms 652 KB Output is correct
65 Correct 52 ms 868 KB Output is correct
66 Correct 2 ms 688 KB Output is correct
67 Correct 2 ms 604 KB Output is correct
68 Correct 38 ms 788 KB Output is correct
69 Correct 35 ms 708 KB Output is correct
70 Correct 68 ms 600 KB Output is correct
71 Correct 75 ms 760 KB Output is correct
72 Correct 2 ms 604 KB Output is correct
73 Correct 2 ms 604 KB Output is correct
74 Correct 11 ms 792 KB Output is correct
75 Correct 9 ms 784 KB Output is correct
76 Correct 2 ms 604 KB Output is correct
77 Correct 2 ms 604 KB Output is correct
78 Correct 84 ms 716 KB Output is correct
79 Correct 73 ms 604 KB Output is correct
80 Correct 89 ms 688 KB Output is correct
81 Correct 90 ms 600 KB Output is correct
82 Correct 16 ms 604 KB Output is correct
83 Correct 14 ms 604 KB Output is correct
84 Correct 61 ms 600 KB Output is correct
85 Correct 84 ms 688 KB Output is correct
86 Correct 34 ms 760 KB Output is correct
87 Correct 10 ms 604 KB Output is correct
88 Correct 40 ms 756 KB Output is correct
89 Correct 44 ms 736 KB Output is correct
90 Correct 59 ms 716 KB Output is correct
91 Correct 64 ms 604 KB Output is correct
92 Correct 1 ms 600 KB Output is correct
93 Correct 2 ms 604 KB Output is correct
94 Correct 1 ms 604 KB Output is correct
95 Correct 2 ms 604 KB Output is correct
96 Correct 2 ms 616 KB Output is correct
97 Correct 2 ms 616 KB Output is correct
98 Correct 2 ms 616 KB Output is correct
99 Correct 2 ms 616 KB Output is correct
100 Correct 2 ms 872 KB Output is correct
101 Correct 2 ms 616 KB Output is correct
102 Correct 0 ms 360 KB Output is correct
103 Correct 1 ms 360 KB Output is correct
104 Correct 1 ms 360 KB Output is correct
105 Correct 0 ms 360 KB Output is correct
106 Correct 0 ms 360 KB Output is correct
107 Correct 0 ms 360 KB Output is correct
108 Correct 1 ms 360 KB Output is correct
109 Correct 1 ms 360 KB Output is correct
110 Correct 0 ms 456 KB Output is correct
111 Correct 1 ms 360 KB Output is correct
112 Correct 1 ms 360 KB Output is correct
113 Correct 2 ms 360 KB Output is correct
114 Correct 3 ms 576 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 316 ms 13228 KB Output is correct
2 Correct 276 ms 13404 KB Output is correct
3 Correct 188 ms 8748 KB Output is correct
4 Correct 52 ms 2160 KB Output is correct
5 Correct 27 ms 1628 KB Output is correct
6 Correct 63 ms 3280 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 115 ms 5360 KB Output is correct
9 Correct 173 ms 7100 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 222 ms 9252 KB Output is correct
12 Correct 253 ms 11196 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 408 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 296 ms 13220 KB Output is correct
40 Correct 281 ms 13436 KB Output is correct
41 Correct 215 ms 8776 KB Output is correct
42 Correct 46 ms 2140 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 344 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 46 ms 10172 KB Output is correct
58 Correct 44 ms 10164 KB Output is correct
59 Correct 58 ms 10336 KB Output is correct
60 Correct 47 ms 10432 KB Output is correct
61 Correct 43 ms 10384 KB Output is correct
62 Correct 42 ms 10816 KB Output is correct
63 Correct 38 ms 9912 KB Output is correct
64 Correct 38 ms 9920 KB Output is correct
65 Correct 43 ms 9964 KB Output is correct
66 Correct 37 ms 10000 KB Output is correct
67 Correct 43 ms 10304 KB Output is correct
68 Correct 44 ms 10312 KB Output is correct
69 Correct 49 ms 10592 KB Output is correct
70 Correct 48 ms 10304 KB Output is correct
71 Correct 1 ms 344 KB Output is correct
72 Correct 3 ms 604 KB Output is correct
73 Correct 2 ms 604 KB Output is correct
74 Correct 2 ms 760 KB Output is correct
75 Correct 2 ms 604 KB Output is correct
76 Correct 1 ms 604 KB Output is correct
77 Correct 3 ms 856 KB Output is correct
78 Correct 3 ms 600 KB Output is correct
79 Correct 2 ms 752 KB Output is correct
80 Correct 47 ms 10396 KB Output is correct
81 Correct 50 ms 10468 KB Output is correct
82 Correct 47 ms 10364 KB Output is correct
83 Correct 44 ms 10520 KB Output is correct
84 Correct 2 ms 604 KB Output is correct
85 Correct 2 ms 604 KB Output is correct
86 Correct 2 ms 604 KB Output is correct
87 Correct 2 ms 604 KB Output is correct
88 Correct 2 ms 600 KB Output is correct
89 Correct 2 ms 604 KB Output is correct
90 Correct 3 ms 604 KB Output is correct
91 Correct 2 ms 604 KB Output is correct
92 Correct 2 ms 604 KB Output is correct
93 Correct 2 ms 604 KB Output is correct
94 Correct 0 ms 348 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 1 ms 348 KB Output is correct
97 Correct 1 ms 348 KB Output is correct
98 Correct 1 ms 360 KB Output is correct
99 Correct 1 ms 348 KB Output is correct
100 Correct 1 ms 344 KB Output is correct
101 Correct 1 ms 348 KB Output is correct
102 Correct 1 ms 424 KB Output is correct
103 Correct 0 ms 348 KB Output is correct
104 Correct 28 ms 1628 KB Output is correct
105 Correct 58 ms 3156 KB Output is correct
106 Correct 3 ms 348 KB Output is correct
107 Correct 132 ms 5400 KB Output is correct
108 Correct 154 ms 7016 KB Output is correct
109 Correct 2 ms 344 KB Output is correct
110 Correct 229 ms 9344 KB Output is correct
111 Correct 302 ms 11340 KB Output is correct
112 Correct 3 ms 348 KB Output is correct
113 Correct 362 ms 14660 KB Output is correct
114 Execution timed out 1053 ms 7548 KB Time limit exceeded
115 Halted 0 ms 0 KB -