oj.uz

Submission #240856

# Submission time Handle Problem Language Result Execution time Memory
240856 2020-06-21T10:05:47 Z mhy908 Unique Cities (JOI19_ho_t5) C++14
100 / 100
 567 ms 36728 KB 
#include <bits/stdc++.h>
#define eb emplace_back
using namespace std;
int n, m;
vector<int> link[200010];
int col[200010], d[200010], h[200010], ans[200010];
void dfs1(int num, int par){
    d[num]=d[par]+1, h[num]=1;
    for(auto i:link[num]){
        if(i==par)continue;
        dfs1(i, num);
        h[num]=max(h[num], h[i]+1);
    }
}
int stk[200010], re, cnt[200010], anss;
inline void update(int col, int num){
    if(!cnt[col])anss++;
    cnt[col]+=num;
    if(!cnt[col])anss--;
}
void dfs2(int num, int par){
    int max1=0, max2=0, maxnum=0;
    for(auto i:link[num]){
        if(i==par)continue;
        if(max2<=h[i]){
            if(max1<=h[i]){
                max2=max1;
                max1=h[i];
                maxnum=i;
            }
            else max2=h[i];
        }
    }
    while(re&&d[num]-d[stk[re]]<=max2)update(col[stk[re--]], -1);
    if(maxnum){
        update(col[num], 1);
        stk[++re]=num;
        dfs2(maxnum, num);
    }
    while(re&&d[num]-d[stk[re]]<=max1)update(col[stk[re--]], -1);
    ans[num]=max(ans[num], anss);
    for(auto i:link[num]){
        if(i==par||i==maxnum)continue;
        if(stk[re]!=num){
            update(col[num], 1);
            stk[++re]=num;
        }
        dfs2(i, num);
    }
    if(stk[re]==num){
        update(col[num], -1);
        re--;
    }
}
int main(){
    scanf("%d %d", &n, &m);
    for(int i=1; i<n; i++){
        int a, b;
        scanf("%d %d", &a, &b);
        link[a].eb(b);
        link[b].eb(a);
    }
    for(int i=1; i<=n; i++)scanf("%d", &col[i]);
    dfs1(1, 0);
    int rt1=max_element(d+1, d+n+1)-d;
    dfs1(rt1, 0);
    dfs2(rt1, 0);
    int rt2=max_element(d+1, d+n+1)-d;
    dfs1(rt2, 0);
    dfs2(rt2, 0);
    for(int i=1; i<=n; i++)printf("%d\n", ans[i]);
}

Compilation message

joi2019_ho_t5.cpp: In function 'int main()':
joi2019_ho_t5.cpp:56:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
joi2019_ho_t5.cpp:59:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &a, &b);
         ~~~~~^~~~~~~~~~~~~~~~~
joi2019_ho_t5.cpp:63:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=1; i<=n; i++)scanf("%d", &col[i]);
                            ~~~~~^~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 5120 KB Output is correct
2 Correct 11 ms 5120 KB Output is correct
3 Correct 9 ms 5120 KB Output is correct
4 Correct 9 ms 5248 KB Output is correct
5 Correct 12 ms 5248 KB Output is correct
6 Correct 13 ms 5376 KB Output is correct
7 Correct 9 ms 5248 KB Output is correct
8 Correct 9 ms 5120 KB Output is correct
9 Correct 9 ms 5120 KB Output is correct
10 Correct 11 ms 5120 KB Output is correct
11 Correct 9 ms 5248 KB Output is correct
12 Correct 9 ms 5120 KB Output is correct
13 Correct 9 ms 5376 KB Output is correct
14 Correct 10 ms 5248 KB Output is correct
15 Correct 9 ms 5248 KB Output is correct
16 Correct 9 ms 5248 KB Output is correct
17 Correct 9 ms 5248 KB Output is correct
18 Correct 9 ms 5248 KB Output is correct
19 Correct 10 ms 5248 KB Output is correct
20 Correct 10 ms 5376 KB Output is correct
21 Correct 9 ms 5224 KB Output is correct
22 Correct 9 ms 5120 KB Output is correct
23 Correct 9 ms 5248 KB Output is correct
24 Correct 9 ms 5248 KB Output is correct
25 Correct 11 ms 5224 KB Output is correct
26 Correct 11 ms 5120 KB Output is correct
27 Correct 9 ms 5376 KB Output is correct
28 Correct 9 ms 5248 KB Output is correct
29 Correct 10 ms 5248 KB Output is correct
30 Correct 9 ms 5248 KB Output is correct
31 Correct 9 ms 5376 KB Output is correct
32 Correct 9 ms 5248 KB Output is correct

Subtask #2
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 178 ms 12408 KB Output is correct
2 Correct 221 ms 21752 KB Output is correct
3 Correct 37 ms 7936 KB Output is correct
4 Correct 422 ms 17860 KB Output is correct
5 Correct 459 ms 34316 KB Output is correct
6 Correct 522 ms 25848 KB Output is correct
7 Correct 342 ms 17908 KB Output is correct
8 Correct 434 ms 19576 KB Output is correct
9 Correct 388 ms 19048 KB Output is correct
10 Correct 359 ms 18936 KB Output is correct
11 Correct 207 ms 18648 KB Output is correct
12 Correct 436 ms 28024 KB Output is correct
13 Correct 379 ms 25844 KB Output is correct
14 Correct 389 ms 25364 KB Output is correct
15 Correct 195 ms 18540 KB Output is correct
16 Correct 367 ms 29040 KB Output is correct
17 Correct 444 ms 26228 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 276 ms 16504 KB Output is correct
2 Correct 480 ms 35320 KB Output is correct
3 Correct 39 ms 8568 KB Output is correct
4 Correct 386 ms 19448 KB Output is correct
5 Correct 477 ms 36728 KB Output is correct
6 Correct 490 ms 27768 KB Output is correct
7 Correct 374 ms 19576 KB Output is correct
8 Correct 474 ms 23136 KB Output is correct
9 Correct 399 ms 21880 KB Output is correct
10 Correct 460 ms 20856 KB Output is correct
11 Correct 305 ms 20080 KB Output is correct
12 Correct 458 ms 33144 KB Output is correct
13 Correct 389 ms 26740 KB Output is correct
14 Correct 413 ms 26868 KB Output is correct
15 Correct 215 ms 19776 KB Output is correct
16 Correct 449 ms 31216 KB Output is correct
17 Correct 538 ms 28020 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 5120 KB Output is correct
2 Correct 11 ms 5120 KB Output is correct
3 Correct 9 ms 5120 KB Output is correct
4 Correct 9 ms 5248 KB Output is correct
5 Correct 12 ms 5248 KB Output is correct
6 Correct 13 ms 5376 KB Output is correct
7 Correct 9 ms 5248 KB Output is correct
8 Correct 9 ms 5120 KB Output is correct
9 Correct 9 ms 5120 KB Output is correct
10 Correct 11 ms 5120 KB Output is correct
11 Correct 9 ms 5248 KB Output is correct
12 Correct 9 ms 5120 KB Output is correct
13 Correct 9 ms 5376 KB Output is correct
14 Correct 10 ms 5248 KB Output is correct
15 Correct 9 ms 5248 KB Output is correct
16 Correct 9 ms 5248 KB Output is correct
17 Correct 9 ms 5248 KB Output is correct
18 Correct 9 ms 5248 KB Output is correct
19 Correct 10 ms 5248 KB Output is correct
20 Correct 10 ms 5376 KB Output is correct
21 Correct 9 ms 5224 KB Output is correct
22 Correct 9 ms 5120 KB Output is correct
23 Correct 9 ms 5248 KB Output is correct
24 Correct 9 ms 5248 KB Output is correct
25 Correct 11 ms 5224 KB Output is correct
26 Correct 11 ms 5120 KB Output is correct
27 Correct 9 ms 5376 KB Output is correct
28 Correct 9 ms 5248 KB Output is correct
29 Correct 10 ms 5248 KB Output is correct
30 Correct 9 ms 5248 KB Output is correct
31 Correct 9 ms 5376 KB Output is correct
32 Correct 9 ms 5248 KB Output is correct
33 Correct 178 ms 12408 KB Output is correct
34 Correct 221 ms 21752 KB Output is correct
35 Correct 37 ms 7936 KB Output is correct
36 Correct 422 ms 17860 KB Output is correct
37 Correct 459 ms 34316 KB Output is correct
38 Correct 522 ms 25848 KB Output is correct
39 Correct 342 ms 17908 KB Output is correct
40 Correct 434 ms 19576 KB Output is correct
41 Correct 388 ms 19048 KB Output is correct
42 Correct 359 ms 18936 KB Output is correct
43 Correct 207 ms 18648 KB Output is correct
44 Correct 436 ms 28024 KB Output is correct
45 Correct 379 ms 25844 KB Output is correct
46 Correct 389 ms 25364 KB Output is correct
47 Correct 195 ms 18540 KB Output is correct
48 Correct 367 ms 29040 KB Output is correct
49 Correct 444 ms 26228 KB Output is correct
50 Correct 276 ms 16504 KB Output is correct
51 Correct 480 ms 35320 KB Output is correct
52 Correct 39 ms 8568 KB Output is correct
53 Correct 386 ms 19448 KB Output is correct
54 Correct 477 ms 36728 KB Output is correct
55 Correct 490 ms 27768 KB Output is correct
56 Correct 374 ms 19576 KB Output is correct
57 Correct 474 ms 23136 KB Output is correct
58 Correct 399 ms 21880 KB Output is correct
59 Correct 460 ms 20856 KB Output is correct
60 Correct 305 ms 20080 KB Output is correct
61 Correct 458 ms 33144 KB Output is correct
62 Correct 389 ms 26740 KB Output is correct
63 Correct 413 ms 26868 KB Output is correct
64 Correct 215 ms 19776 KB Output is correct
65 Correct 449 ms 31216 KB Output is correct
66 Correct 538 ms 28020 KB Output is correct
67 Correct 34 ms 6912 KB Output is correct
68 Correct 209 ms 18432 KB Output is correct
69 Correct 288 ms 18532 KB Output is correct
70 Correct 423 ms 18008 KB Output is correct
71 Correct 567 ms 34168 KB Output is correct
72 Correct 440 ms 25720 KB Output is correct
73 Correct 431 ms 17888 KB Output is correct
74 Correct 382 ms 20856 KB Output is correct
75 Correct 381 ms 19320 KB Output is correct
76 Correct 385 ms 19192 KB Output is correct
77 Correct 267 ms 18156 KB Output is correct
78 Correct 456 ms 29560 KB Output is correct
79 Correct 403 ms 27892 KB Output is correct
80 Correct 413 ms 24308 KB Output is correct
81 Correct 173 ms 18260 KB Output is correct
82 Correct 378 ms 29040 KB Output is correct
83 Correct 406 ms 25972 KB Output is correct
84 Correct 362 ms 18168 KB Output is correct
85 Correct 486 ms 34852 KB Output is correct
86 Correct 455 ms 26232 KB Output is correct
87 Correct 358 ms 18168 KB Output is correct
88 Correct 483 ms 21624 KB Output is correct
89 Correct 381 ms 19960 KB Output is correct
90 Correct 405 ms 19576 KB Output is correct
91 Correct 282 ms 18544 KB Output is correct
92 Correct 476 ms 34552 KB Output is correct
93 Correct 388 ms 24188 KB Output is correct
94 Correct 385 ms 22264 KB Output is correct
95 Correct 170 ms 18772 KB Output is correct
96 Correct 382 ms 29560 KB Output is correct
97 Correct 390 ms 26484 KB Output is correct
98 Correct 382 ms 19496 KB Output is correct
99 Correct 496 ms 35296 KB Output is correct
100 Correct 465 ms 27384 KB Output is correct
101 Correct 353 ms 18804 KB Output is correct
102 Correct 392 ms 21624 KB Output is correct
103 Correct 378 ms 20448 KB Output is correct
104 Correct 394 ms 20216 KB Output is correct
105 Correct 265 ms 18928 KB Output is correct
106 Correct 454 ms 28572 KB Output is correct
107 Correct 388 ms 28660 KB Output is correct
108 Correct 435 ms 24568 KB Output is correct
109 Correct 187 ms 19560 KB Output is correct
110 Correct 476 ms 30448 KB Output is correct
111 Correct 488 ms 27380 KB Output is correct