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답안 #417489

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
417489 2021-06-03T19:40:07 Z iulia13 꿈 (IOI13_dreaming) C++14
65 / 100
 145 ms 18504 KB 
#include <bits/stdc++.h>
#include "dreaming.h"
using namespace std;
const int N = 1e5 + 5;
struct ura{
    int x, c;
};
vector <ura> g[N];
int maxi = 2e9, dp[N], dp2[N], dp_up[N];
int lover[N];
int viz[N];
vector <int> A;
void dfs(int nod, int dad = -1)
{
    viz[nod] = 1;
    for (auto son : g[nod])
    {
        if (son.x == dad)
            continue;
        dfs(son.x, nod);
        if (dp[nod] < dp[son.x] + son.c)
        {
            dp2[nod] = dp[nod];
            dp[nod] = dp[son.x] + son.c;
        }
        else
            dp2[nod] = max(dp2[nod], dp[son.x] + son.c);
    }
}
void dfs2(int nod, int dad = -1)
{
    for (auto son : g[nod])
    {
        if (son.x == dad)
            continue;
        int c = dp[nod];
        if (c == dp[son.x] + son.c)
            c = dp2[nod];
        dp_up[son.x] = max(dp_up[nod], c) + son.c;
        dfs2(son.x, nod);
    }
    lover[nod] = max(dp_up[nod], dp[nod]);
    maxi = min(lover[nod], maxi);
}
int dist[N], bebe = -1, maxim;
void dfs_diametru(int nod, int dad = -1)
{
    for (auto son : g[nod])
    {
        if (son.x == dad)
            continue;
        dist[son.x] = dist[nod] + son.c;
        if (dist[son.x] > maxim)
        {
            maxim = dist[son.x];
            bebe = son.x;
        }
        dfs_diametru(son.x, nod);
    }
}
void dfs_clear(int nod, int dad = -1)
{
    dist[nod] = 0;
    for (auto son : g[nod])
    {
        if (son.x == dad)
            continue;
        dfs_clear(son.x, nod);
    }
}
int travelTime(int n, int m, int l, int a[], int b[], int t[])
{
    int i, j;
    for (i = 0; i < m; i++)
    {
        g[a[i]].push_back({b[i], t[i]});
        g[b[i]].push_back({a[i], t[i]});
    }
    int c = 0;
    for (i = 0; i < n; i++)
    {
        if (viz[i])
            continue;
        maxi = 2e9;
        dfs(i);
        dfs2(i);
        maxim = 0;
        A.push_back(maxi);
        bebe = -1;
        dfs_diametru(i);
        dfs_clear(i);
        if (bebe == -1)
            continue;
        dfs_diametru(bebe);
        c = max(c, dist[bebe]);
    }
    if (A.size() == 1)
        return A[0];
    sort(A.begin(), A.end());
    reverse(A.begin(), A.end());
    c = max(c, A[0] + A[1] + l);
    if (A.size() == 2)
        return c;
    else
        return max(c, A[1] + A[2] + 2 * l);
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:73:12: warning: unused variable 'j' [-Wunused-variable]
   73 |     int i, j;
      |            ^

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 62 ms 14660 KB Output is correct
2 Correct 68 ms 15608 KB Output is correct
3 Correct 46 ms 11496 KB Output is correct
4 Correct 11 ms 4556 KB Output is correct
5 Correct 10 ms 3692 KB Output is correct
6 Correct 16 ms 5556 KB Output is correct
7 Correct 3 ms 2636 KB Output is correct
8 Correct 31 ms 7328 KB Output is correct
9 Correct 40 ms 9724 KB Output is correct
10 Correct 2 ms 2764 KB Output is correct
11 Correct 57 ms 11332 KB Output is correct
12 Correct 69 ms 13292 KB Output is correct
13 Correct 2 ms 2776 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 2 ms 2652 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Correct 2 ms 2652 KB Output is correct
8 Correct 2 ms 2656 KB Output is correct
9 Correct 2 ms 2656 KB Output is correct
10 Correct 2 ms 2636 KB Output is correct
11 Correct 2 ms 2588 KB Output is correct
12 Correct 2 ms 2636 KB Output is correct
13 Correct 2 ms 2636 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2636 KB Output is correct
16 Correct 2 ms 2636 KB Output is correct
17 Correct 2 ms 2636 KB Output is correct
18 Correct 2 ms 2636 KB Output is correct
19 Correct 2 ms 2656 KB Output is correct
20 Correct 2 ms 2636 KB Output is correct
21 Correct 2 ms 2636 KB Output is correct
22 Correct 2 ms 2636 KB Output is correct
23 Correct 2 ms 2660 KB Output is correct
24 Correct 2 ms 2636 KB Output is correct
25 Correct 2 ms 2636 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 62 ms 14660 KB Output is correct
2 Correct 68 ms 15608 KB Output is correct
3 Correct 46 ms 11496 KB Output is correct
4 Correct 11 ms 4556 KB Output is correct
5 Correct 10 ms 3692 KB Output is correct
6 Correct 16 ms 5556 KB Output is correct
7 Correct 3 ms 2636 KB Output is correct
8 Correct 31 ms 7328 KB Output is correct
9 Correct 40 ms 9724 KB Output is correct
10 Correct 2 ms 2764 KB Output is correct
11 Correct 57 ms 11332 KB Output is correct
12 Correct 69 ms 13292 KB Output is correct
13 Correct 2 ms 2776 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2636 KB Output is correct
16 Correct 3 ms 2636 KB Output is correct
17 Correct 2 ms 2652 KB Output is correct
18 Correct 2 ms 2636 KB Output is correct
19 Correct 2 ms 2636 KB Output is correct
20 Correct 2 ms 2652 KB Output is correct
21 Correct 2 ms 2656 KB Output is correct
22 Correct 2 ms 2656 KB Output is correct
23 Correct 2 ms 2636 KB Output is correct
24 Correct 2 ms 2588 KB Output is correct
25 Correct 2 ms 2636 KB Output is correct
26 Correct 2 ms 2636 KB Output is correct
27 Correct 2 ms 2636 KB Output is correct
28 Correct 2 ms 2636 KB Output is correct
29 Correct 2 ms 2636 KB Output is correct
30 Correct 2 ms 2636 KB Output is correct
31 Correct 2 ms 2636 KB Output is correct
32 Correct 2 ms 2656 KB Output is correct
33 Correct 2 ms 2636 KB Output is correct
34 Correct 2 ms 2636 KB Output is correct
35 Correct 2 ms 2636 KB Output is correct
36 Correct 2 ms 2660 KB Output is correct
37 Correct 2 ms 2636 KB Output is correct
38 Correct 2 ms 2636 KB Output is correct
39 Correct 74 ms 15564 KB Output is correct
40 Correct 77 ms 15628 KB Output is correct
41 Correct 44 ms 11500 KB Output is correct
42 Correct 10 ms 4556 KB Output is correct
43 Correct 2 ms 2636 KB Output is correct
44 Correct 2 ms 2636 KB Output is correct
45 Correct 2 ms 2656 KB Output is correct
46 Correct 2 ms 2636 KB Output is correct
47 Correct 2 ms 2636 KB Output is correct
48 Correct 3 ms 2656 KB Output is correct
49 Correct 3 ms 2636 KB Output is correct
50 Correct 2 ms 2636 KB Output is correct
51 Correct 2 ms 2620 KB Output is correct
52 Correct 2 ms 2636 KB Output is correct
53 Correct 2 ms 2636 KB Output is correct
54 Correct 2 ms 2636 KB Output is correct
55 Correct 2 ms 2636 KB Output is correct
56 Correct 2 ms 2636 KB Output is correct
57 Correct 97 ms 11448 KB Output is correct
58 Correct 102 ms 11388 KB Output is correct
59 Correct 141 ms 11432 KB Output is correct
60 Correct 131 ms 11432 KB Output is correct
61 Correct 107 ms 11468 KB Output is correct
62 Correct 79 ms 11460 KB Output is correct
63 Correct 78 ms 11156 KB Output is correct
64 Correct 99 ms 11156 KB Output is correct
65 Correct 107 ms 11460 KB Output is correct
66 Correct 81 ms 11360 KB Output is correct
67 Correct 90 ms 11380 KB Output is correct
68 Correct 118 ms 11444 KB Output is correct
69 Correct 135 ms 11716 KB Output is correct
70 Correct 113 ms 11572 KB Output is correct
71 Correct 2 ms 2636 KB Output is correct
72 Correct 4 ms 2892 KB Output is correct
73 Correct 3 ms 2924 KB Output is correct
74 Correct 3 ms 2924 KB Output is correct
75 Correct 3 ms 2892 KB Output is correct
76 Correct 4 ms 2892 KB Output is correct
77 Correct 3 ms 2892 KB Output is correct
78 Correct 4 ms 2892 KB Output is correct
79 Correct 4 ms 2892 KB Output is correct
80 Correct 130 ms 11408 KB Output is correct
81 Correct 126 ms 11456 KB Output is correct
82 Correct 85 ms 11404 KB Output is correct
83 Correct 85 ms 11448 KB Output is correct
84 Correct 3 ms 2764 KB Output is correct
85 Correct 3 ms 2756 KB Output is correct
86 Correct 3 ms 2892 KB Output is correct
87 Correct 5 ms 2800 KB Output is correct
88 Correct 3 ms 2892 KB Output is correct
89 Correct 3 ms 2824 KB Output is correct
90 Correct 4 ms 2892 KB Output is correct
91 Correct 4 ms 2924 KB Output is correct
92 Correct 4 ms 2892 KB Output is correct
93 Correct 3 ms 2892 KB Output is correct
94 Correct 2 ms 2636 KB Output is correct
95 Correct 2 ms 2652 KB Output is correct
96 Correct 2 ms 2636 KB Output is correct
97 Correct 2 ms 2636 KB Output is correct
98 Correct 2 ms 2636 KB Output is correct
99 Correct 2 ms 2656 KB Output is correct
100 Correct 2 ms 2636 KB Output is correct
101 Correct 2 ms 2636 KB Output is correct
102 Correct 2 ms 2636 KB Output is correct
103 Correct 2 ms 2636 KB Output is correct
104 Correct 8 ms 3788 KB Output is correct
105 Correct 16 ms 5452 KB Output is correct
106 Correct 2 ms 2636 KB Output is correct
107 Correct 37 ms 7276 KB Output is correct
108 Correct 46 ms 9668 KB Output is correct
109 Correct 3 ms 2636 KB Output is correct
110 Correct 65 ms 11312 KB Output is correct
111 Correct 92 ms 13316 KB Output is correct
112 Correct 3 ms 2660 KB Output is correct
113 Correct 145 ms 18504 KB Output is correct

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 7728 KB Output is correct
2 Correct 29 ms 7748 KB Output is correct
3 Correct 27 ms 7776 KB Output is correct
4 Correct 31 ms 7696 KB Output is correct
5 Correct 29 ms 7696 KB Output is correct
6 Correct 31 ms 8352 KB Output is correct
7 Correct 39 ms 8020 KB Output is correct
8 Correct 35 ms 7700 KB Output is correct
9 Correct 28 ms 7572 KB Output is correct
10 Correct 27 ms 7892 KB Output is correct
11 Correct 2 ms 2636 KB Output is correct
12 Correct 7 ms 5328 KB Output is correct
13 Correct 7 ms 5444 KB Output is correct
14 Correct 7 ms 5316 KB Output is correct
15 Correct 7 ms 5320 KB Output is correct
16 Correct 9 ms 5192 KB Output is correct
17 Correct 7 ms 4676 KB Output is correct
18 Correct 8 ms 5444 KB Output is correct
19 Correct 7 ms 5192 KB Output is correct
20 Correct 2 ms 2636 KB Output is correct
21 Correct 2 ms 2636 KB Output is correct
22 Correct 2 ms 2656 KB Output is correct
23 Correct 7 ms 5192 KB Output is correct

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 2 ms 2652 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Correct 2 ms 2652 KB Output is correct
8 Correct 2 ms 2656 KB Output is correct
9 Correct 2 ms 2656 KB Output is correct
10 Correct 2 ms 2636 KB Output is correct
11 Correct 2 ms 2588 KB Output is correct
12 Correct 2 ms 2636 KB Output is correct
13 Correct 2 ms 2636 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2636 KB Output is correct
16 Correct 2 ms 2636 KB Output is correct
17 Correct 2 ms 2636 KB Output is correct
18 Correct 2 ms 2636 KB Output is correct
19 Correct 2 ms 2656 KB Output is correct
20 Correct 2 ms 2636 KB Output is correct
21 Correct 2 ms 2636 KB Output is correct
22 Correct 2 ms 2636 KB Output is correct
23 Correct 2 ms 2660 KB Output is correct
24 Correct 2 ms 2636 KB Output is correct
25 Correct 2 ms 2636 KB Output is correct
26 Correct 2 ms 2636 KB Output is correct
27 Correct 3 ms 2764 KB Output is correct
28 Correct 4 ms 2892 KB Output is correct
29 Correct 2 ms 2636 KB Output is correct
30 Correct 4 ms 2796 KB Output is correct
31 Correct 3 ms 2864 KB Output is correct
32 Correct 3 ms 2636 KB Output is correct
33 Correct 3 ms 2764 KB Output is correct
34 Correct 3 ms 2892 KB Output is correct
35 Correct 2 ms 2660 KB Output is correct
36 Correct 2 ms 2636 KB Output is correct
37 Correct 2 ms 2636 KB Output is correct
38 Correct 2 ms 2636 KB Output is correct
39 Correct 2 ms 2636 KB Output is correct
40 Correct 2 ms 2636 KB Output is correct
41 Correct 2 ms 2636 KB Output is correct
42 Correct 2 ms 2636 KB Output is correct
43 Correct 2 ms 2636 KB Output is correct
44 Correct 2 ms 2636 KB Output is correct
45 Correct 2 ms 2636 KB Output is correct
46 Correct 2 ms 2612 KB Output is correct
47 Correct 2 ms 2636 KB Output is correct
48 Correct 2 ms 2636 KB Output is correct
49 Correct 2 ms 2636 KB Output is correct
50 Correct 2 ms 2636 KB Output is correct
51 Correct 2 ms 2636 KB Output is correct
52 Correct 2 ms 2636 KB Output is correct
53 Correct 2 ms 2636 KB Output is correct
54 Incorrect 4 ms 3092 KB Output isn't correct
55 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 62 ms 14660 KB Output is correct
2 Correct 68 ms 15608 KB Output is correct
3 Correct 46 ms 11496 KB Output is correct
4 Correct 11 ms 4556 KB Output is correct
5 Correct 10 ms 3692 KB Output is correct
6 Correct 16 ms 5556 KB Output is correct
7 Correct 3 ms 2636 KB Output is correct
8 Correct 31 ms 7328 KB Output is correct
9 Correct 40 ms 9724 KB Output is correct
10 Correct 2 ms 2764 KB Output is correct
11 Correct 57 ms 11332 KB Output is correct
12 Correct 69 ms 13292 KB Output is correct
13 Correct 2 ms 2776 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2636 KB Output is correct
16 Correct 3 ms 2636 KB Output is correct
17 Correct 2 ms 2652 KB Output is correct
18 Correct 2 ms 2636 KB Output is correct
19 Correct 2 ms 2636 KB Output is correct
20 Correct 2 ms 2652 KB Output is correct
21 Correct 2 ms 2656 KB Output is correct
22 Correct 2 ms 2656 KB Output is correct
23 Correct 2 ms 2636 KB Output is correct
24 Correct 2 ms 2588 KB Output is correct
25 Correct 2 ms 2636 KB Output is correct
26 Correct 2 ms 2636 KB Output is correct
27 Correct 2 ms 2636 KB Output is correct
28 Correct 2 ms 2636 KB Output is correct
29 Correct 2 ms 2636 KB Output is correct
30 Correct 2 ms 2636 KB Output is correct
31 Correct 2 ms 2636 KB Output is correct
32 Correct 2 ms 2656 KB Output is correct
33 Correct 2 ms 2636 KB Output is correct
34 Correct 2 ms 2636 KB Output is correct
35 Correct 2 ms 2636 KB Output is correct
36 Correct 2 ms 2660 KB Output is correct
37 Correct 2 ms 2636 KB Output is correct
38 Correct 2 ms 2636 KB Output is correct
39 Correct 74 ms 15564 KB Output is correct
40 Correct 77 ms 15628 KB Output is correct
41 Correct 44 ms 11500 KB Output is correct
42 Correct 10 ms 4556 KB Output is correct
43 Correct 2 ms 2636 KB Output is correct
44 Correct 2 ms 2636 KB Output is correct
45 Correct 2 ms 2656 KB Output is correct
46 Correct 2 ms 2636 KB Output is correct
47 Correct 2 ms 2636 KB Output is correct
48 Correct 3 ms 2656 KB Output is correct
49 Correct 3 ms 2636 KB Output is correct
50 Correct 2 ms 2636 KB Output is correct
51 Correct 2 ms 2620 KB Output is correct
52 Correct 2 ms 2636 KB Output is correct
53 Correct 2 ms 2636 KB Output is correct
54 Correct 2 ms 2636 KB Output is correct
55 Correct 2 ms 2636 KB Output is correct
56 Correct 2 ms 2636 KB Output is correct
57 Correct 97 ms 11448 KB Output is correct
58 Correct 102 ms 11388 KB Output is correct
59 Correct 141 ms 11432 KB Output is correct
60 Correct 131 ms 11432 KB Output is correct
61 Correct 107 ms 11468 KB Output is correct
62 Correct 79 ms 11460 KB Output is correct
63 Correct 78 ms 11156 KB Output is correct
64 Correct 99 ms 11156 KB Output is correct
65 Correct 107 ms 11460 KB Output is correct
66 Correct 81 ms 11360 KB Output is correct
67 Correct 90 ms 11380 KB Output is correct
68 Correct 118 ms 11444 KB Output is correct
69 Correct 135 ms 11716 KB Output is correct
70 Correct 113 ms 11572 KB Output is correct
71 Correct 2 ms 2636 KB Output is correct
72 Correct 4 ms 2892 KB Output is correct
73 Correct 3 ms 2924 KB Output is correct
74 Correct 3 ms 2924 KB Output is correct
75 Correct 3 ms 2892 KB Output is correct
76 Correct 4 ms 2892 KB Output is correct
77 Correct 3 ms 2892 KB Output is correct
78 Correct 4 ms 2892 KB Output is correct
79 Correct 4 ms 2892 KB Output is correct
80 Correct 130 ms 11408 KB Output is correct
81 Correct 126 ms 11456 KB Output is correct
82 Correct 85 ms 11404 KB Output is correct
83 Correct 85 ms 11448 KB Output is correct
84 Correct 3 ms 2764 KB Output is correct
85 Correct 3 ms 2756 KB Output is correct
86 Correct 3 ms 2892 KB Output is correct
87 Correct 5 ms 2800 KB Output is correct
88 Correct 3 ms 2892 KB Output is correct
89 Correct 3 ms 2824 KB Output is correct
90 Correct 4 ms 2892 KB Output is correct
91 Correct 4 ms 2924 KB Output is correct
92 Correct 4 ms 2892 KB Output is correct
93 Correct 3 ms 2892 KB Output is correct
94 Correct 2 ms 2636 KB Output is correct
95 Correct 2 ms 2652 KB Output is correct
96 Correct 2 ms 2636 KB Output is correct
97 Correct 2 ms 2636 KB Output is correct
98 Correct 2 ms 2636 KB Output is correct
99 Correct 2 ms 2656 KB Output is correct
100 Correct 2 ms 2636 KB Output is correct
101 Correct 2 ms 2636 KB Output is correct
102 Correct 2 ms 2636 KB Output is correct
103 Correct 2 ms 2636 KB Output is correct
104 Correct 8 ms 3788 KB Output is correct
105 Correct 16 ms 5452 KB Output is correct
106 Correct 2 ms 2636 KB Output is correct
107 Correct 37 ms 7276 KB Output is correct
108 Correct 46 ms 9668 KB Output is correct
109 Correct 3 ms 2636 KB Output is correct
110 Correct 65 ms 11312 KB Output is correct
111 Correct 92 ms 13316 KB Output is correct
112 Correct 3 ms 2660 KB Output is correct
113 Correct 145 ms 18504 KB Output is correct
114 Correct 28 ms 7728 KB Output is correct
115 Correct 29 ms 7748 KB Output is correct
116 Correct 27 ms 7776 KB Output is correct
117 Correct 31 ms 7696 KB Output is correct
118 Correct 29 ms 7696 KB Output is correct
119 Correct 31 ms 8352 KB Output is correct
120 Correct 39 ms 8020 KB Output is correct
121 Correct 35 ms 7700 KB Output is correct
122 Correct 28 ms 7572 KB Output is correct
123 Correct 27 ms 7892 KB Output is correct
124 Correct 2 ms 2636 KB Output is correct
125 Correct 7 ms 5328 KB Output is correct
126 Correct 7 ms 5444 KB Output is correct
127 Correct 7 ms 5316 KB Output is correct
128 Correct 7 ms 5320 KB Output is correct
129 Correct 9 ms 5192 KB Output is correct
130 Correct 7 ms 4676 KB Output is correct
131 Correct 8 ms 5444 KB Output is correct
132 Correct 7 ms 5192 KB Output is correct
133 Correct 2 ms 2636 KB Output is correct
134 Correct 2 ms 2636 KB Output is correct
135 Correct 2 ms 2656 KB Output is correct
136 Correct 7 ms 5192 KB Output is correct
137 Correct 2 ms 2636 KB Output is correct
138 Correct 3 ms 2764 KB Output is correct
139 Correct 4 ms 2892 KB Output is correct
140 Correct 2 ms 2636 KB Output is correct
141 Correct 4 ms 2796 KB Output is correct
142 Correct 3 ms 2864 KB Output is correct
143 Correct 3 ms 2636 KB Output is correct
144 Correct 3 ms 2764 KB Output is correct
145 Correct 3 ms 2892 KB Output is correct
146 Correct 2 ms 2660 KB Output is correct
147 Correct 2 ms 2636 KB Output is correct
148 Correct 2 ms 2636 KB Output is correct
149 Correct 2 ms 2636 KB Output is correct
150 Correct 2 ms 2636 KB Output is correct
151 Correct 2 ms 2636 KB Output is correct
152 Correct 2 ms 2636 KB Output is correct
153 Correct 2 ms 2636 KB Output is correct
154 Correct 2 ms 2636 KB Output is correct
155 Correct 2 ms 2636 KB Output is correct
156 Correct 2 ms 2636 KB Output is correct
157 Correct 2 ms 2612 KB Output is correct
158 Correct 2 ms 2636 KB Output is correct
159 Correct 2 ms 2636 KB Output is correct
160 Correct 2 ms 2636 KB Output is correct
161 Correct 2 ms 2636 KB Output is correct
162 Correct 2 ms 2636 KB Output is correct
163 Correct 2 ms 2636 KB Output is correct
164 Correct 2 ms 2636 KB Output is correct
165 Incorrect 4 ms 3092 KB Output isn't correct
166 Halted 0 ms 0 KB -