oj.uz

답안 #391359

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
391359 2021-04-18T16:05:30 Z lukameladze Power Plant (JOI20_power) C++14
100 / 100
 297 ms 35132 KB 
# include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
using namespace std;
const int N=3e5+5;
long long par[N],dp[N],dp1[N],n,a,b,bb,ans;
vector <long long> v[N];
string s;
void dfs (int a, int p) {
     int ff=0;
     par[a]=p;
     for (int i=0; i<v[a].size(); i++) {
          if (v[a][i]!=p) {
               dfs(v[a][i],a);
               dp[a]+=dp[v[a][i]];
               if (s[a]=='1' && !ff) dp[a]--, ff=1;
               dp1[a]+=dp1[v[a][i]];
          }
     }
     dp1[a]++;
    if (s[a]=='1') dp[a]=max(1LL, dp[a]);
    if (s[a]=='0') dp[a]=max(0LL,dp[a]);
}
int main() {
     cin>>n;
     for (int i=1; i<=n-1; i++) {
          cin>>a>>b;
          v[a].pb(b);
          v[b].pb(a);
     }
     cin>>s;
     s="@"+s;
     dfs(1,0);
     for (int i=1; i<=n; i++) {
          if (par[i] && s[par[i]]=='1') bb=1; else bb=0;
          ans=max(ans,dp[i]+bb);
     }
     cout<<ans<<endl;
}

Compilation message

power.cpp: In function 'void dfs(int, int)':
power.cpp:13:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |      for (int i=0; i<v[a].size(); i++) {
      |                    ~^~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7244 KB Output is correct
2 Correct 5 ms 7244 KB Output is correct
3 Correct 5 ms 7372 KB Output is correct
4 Correct 5 ms 7248 KB Output is correct
5 Correct 5 ms 7244 KB Output is correct
6 Correct 5 ms 7244 KB Output is correct
7 Correct 5 ms 7244 KB Output is correct
8 Correct 5 ms 7268 KB Output is correct
9 Correct 5 ms 7248 KB Output is correct
10 Correct 5 ms 7284 KB Output is correct
11 Correct 5 ms 7356 KB Output is correct
12 Correct 5 ms 7244 KB Output is correct
13 Correct 5 ms 7244 KB Output is correct
14 Correct 5 ms 7244 KB Output is correct
15 Correct 5 ms 7244 KB Output is correct
16 Correct 6 ms 7372 KB Output is correct
17 Correct 5 ms 7348 KB Output is correct
18 Correct 5 ms 7244 KB Output is correct
19 Correct 5 ms 7372 KB Output is correct
20 Correct 5 ms 7372 KB Output is correct
21 Correct 5 ms 7372 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7244 KB Output is correct
2 Correct 5 ms 7244 KB Output is correct
3 Correct 5 ms 7372 KB Output is correct
4 Correct 5 ms 7248 KB Output is correct
5 Correct 5 ms 7244 KB Output is correct
6 Correct 5 ms 7244 KB Output is correct
7 Correct 5 ms 7244 KB Output is correct
8 Correct 5 ms 7268 KB Output is correct
9 Correct 5 ms 7248 KB Output is correct
10 Correct 5 ms 7284 KB Output is correct
11 Correct 5 ms 7356 KB Output is correct
12 Correct 5 ms 7244 KB Output is correct
13 Correct 5 ms 7244 KB Output is correct
14 Correct 5 ms 7244 KB Output is correct
15 Correct 5 ms 7244 KB Output is correct
16 Correct 6 ms 7372 KB Output is correct
17 Correct 5 ms 7348 KB Output is correct
18 Correct 5 ms 7244 KB Output is correct
19 Correct 5 ms 7372 KB Output is correct
20 Correct 5 ms 7372 KB Output is correct
21 Correct 5 ms 7372 KB Output is correct
22 Correct 6 ms 7512 KB Output is correct
23 Correct 6 ms 7500 KB Output is correct
24 Correct 6 ms 7408 KB Output is correct
25 Correct 7 ms 7500 KB Output is correct
26 Correct 6 ms 7500 KB Output is correct
27 Correct 6 ms 7500 KB Output is correct
28 Correct 7 ms 7492 KB Output is correct
29 Correct 6 ms 7624 KB Output is correct
30 Correct 7 ms 7552 KB Output is correct
31 Correct 7 ms 7488 KB Output is correct
32 Correct 6 ms 7500 KB Output is correct
33 Correct 6 ms 7496 KB Output is correct
34 Correct 6 ms 7492 KB Output is correct
35 Correct 6 ms 7500 KB Output is correct
36 Correct 6 ms 7500 KB Output is correct
37 Correct 6 ms 7500 KB Output is correct
38 Correct 7 ms 7500 KB Output is correct
39 Correct 6 ms 7500 KB Output is correct
40 Correct 7 ms 7488 KB Output is correct
41 Correct 7 ms 7500 KB Output is correct
42 Correct 7 ms 7488 KB Output is correct
43 Correct 6 ms 7500 KB Output is correct
44 Correct 6 ms 7500 KB Output is correct
45 Correct 6 ms 7500 KB Output is correct
46 Correct 7 ms 7500 KB Output is correct
47 Correct 6 ms 7500 KB Output is correct
48 Correct 6 ms 7500 KB Output is correct
49 Correct 7 ms 7504 KB Output is correct
50 Correct 7 ms 7500 KB Output is correct
51 Correct 6 ms 7496 KB Output is correct
52 Correct 7 ms 7480 KB Output is correct
53 Correct 6 ms 7512 KB Output is correct
54 Correct 7 ms 7496 KB Output is correct
55 Correct 7 ms 7504 KB Output is correct
56 Correct 6 ms 7488 KB Output is correct
57 Correct 6 ms 7632 KB Output is correct
58 Correct 6 ms 7508 KB Output is correct
59 Correct 7 ms 7512 KB Output is correct
60 Correct 7 ms 7508 KB Output is correct
61 Correct 7 ms 7504 KB Output is correct
62 Correct 6 ms 7496 KB Output is correct
63 Correct 6 ms 7512 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7244 KB Output is correct
2 Correct 5 ms 7244 KB Output is correct
3 Correct 5 ms 7372 KB Output is correct
4 Correct 5 ms 7248 KB Output is correct
5 Correct 5 ms 7244 KB Output is correct
6 Correct 5 ms 7244 KB Output is correct
7 Correct 5 ms 7244 KB Output is correct
8 Correct 5 ms 7268 KB Output is correct
9 Correct 5 ms 7248 KB Output is correct
10 Correct 5 ms 7284 KB Output is correct
11 Correct 5 ms 7356 KB Output is correct
12 Correct 5 ms 7244 KB Output is correct
13 Correct 5 ms 7244 KB Output is correct
14 Correct 5 ms 7244 KB Output is correct
15 Correct 5 ms 7244 KB Output is correct
16 Correct 6 ms 7372 KB Output is correct
17 Correct 5 ms 7348 KB Output is correct
18 Correct 5 ms 7244 KB Output is correct
19 Correct 5 ms 7372 KB Output is correct
20 Correct 5 ms 7372 KB Output is correct
21 Correct 5 ms 7372 KB Output is correct
22 Correct 6 ms 7512 KB Output is correct
23 Correct 6 ms 7500 KB Output is correct
24 Correct 6 ms 7408 KB Output is correct
25 Correct 7 ms 7500 KB Output is correct
26 Correct 6 ms 7500 KB Output is correct
27 Correct 6 ms 7500 KB Output is correct
28 Correct 7 ms 7492 KB Output is correct
29 Correct 6 ms 7624 KB Output is correct
30 Correct 7 ms 7552 KB Output is correct
31 Correct 7 ms 7488 KB Output is correct
32 Correct 6 ms 7500 KB Output is correct
33 Correct 6 ms 7496 KB Output is correct
34 Correct 6 ms 7492 KB Output is correct
35 Correct 6 ms 7500 KB Output is correct
36 Correct 6 ms 7500 KB Output is correct
37 Correct 6 ms 7500 KB Output is correct
38 Correct 7 ms 7500 KB Output is correct
39 Correct 6 ms 7500 KB Output is correct
40 Correct 7 ms 7488 KB Output is correct
41 Correct 7 ms 7500 KB Output is correct
42 Correct 7 ms 7488 KB Output is correct
43 Correct 6 ms 7500 KB Output is correct
44 Correct 6 ms 7500 KB Output is correct
45 Correct 6 ms 7500 KB Output is correct
46 Correct 7 ms 7500 KB Output is correct
47 Correct 6 ms 7500 KB Output is correct
48 Correct 6 ms 7500 KB Output is correct
49 Correct 7 ms 7504 KB Output is correct
50 Correct 7 ms 7500 KB Output is correct
51 Correct 6 ms 7496 KB Output is correct
52 Correct 7 ms 7480 KB Output is correct
53 Correct 6 ms 7512 KB Output is correct
54 Correct 7 ms 7496 KB Output is correct
55 Correct 7 ms 7504 KB Output is correct
56 Correct 6 ms 7488 KB Output is correct
57 Correct 6 ms 7632 KB Output is correct
58 Correct 6 ms 7508 KB Output is correct
59 Correct 7 ms 7512 KB Output is correct
60 Correct 7 ms 7508 KB Output is correct
61 Correct 7 ms 7504 KB Output is correct
62 Correct 6 ms 7496 KB Output is correct
63 Correct 6 ms 7512 KB Output is correct
64 Correct 268 ms 22336 KB Output is correct
65 Correct 262 ms 22380 KB Output is correct
66 Correct 268 ms 22488 KB Output is correct
67 Correct 253 ms 22552 KB Output is correct
68 Correct 259 ms 22364 KB Output is correct
69 Correct 267 ms 22348 KB Output is correct
70 Correct 262 ms 22356 KB Output is correct
71 Correct 262 ms 22412 KB Output is correct
72 Correct 274 ms 22360 KB Output is correct
73 Correct 286 ms 33996 KB Output is correct
74 Correct 277 ms 33996 KB Output is correct
75 Correct 252 ms 23564 KB Output is correct
76 Correct 257 ms 23660 KB Output is correct
77 Correct 259 ms 22344 KB Output is correct
78 Correct 288 ms 22388 KB Output is correct
79 Correct 261 ms 22508 KB Output is correct
80 Correct 272 ms 22396 KB Output is correct
81 Correct 233 ms 22452 KB Output is correct
82 Correct 245 ms 22380 KB Output is correct
83 Correct 297 ms 27412 KB Output is correct
84 Correct 272 ms 29564 KB Output is correct
85 Correct 264 ms 29328 KB Output is correct
86 Correct 266 ms 23664 KB Output is correct
87 Correct 263 ms 23184 KB Output is correct
88 Correct 255 ms 23184 KB Output is correct
89 Correct 270 ms 23312 KB Output is correct
90 Correct 252 ms 23108 KB Output is correct
91 Correct 290 ms 23324 KB Output is correct
92 Correct 250 ms 23692 KB Output is correct
93 Correct 247 ms 25916 KB Output is correct
94 Correct 240 ms 27472 KB Output is correct
95 Correct 246 ms 26296 KB Output is correct
96 Correct 239 ms 24432 KB Output is correct
97 Correct 237 ms 22936 KB Output is correct
98 Correct 252 ms 22540 KB Output is correct
99 Correct 246 ms 22440 KB Output is correct
100 Correct 250 ms 25472 KB Output is correct
101 Correct 255 ms 23436 KB Output is correct
102 Correct 239 ms 22628 KB Output is correct
103 Correct 253 ms 22644 KB Output is correct
104 Correct 196 ms 23092 KB Output is correct
105 Correct 280 ms 30868 KB Output is correct
106 Correct 187 ms 22936 KB Output is correct
107 Correct 187 ms 22928 KB Output is correct
108 Correct 274 ms 34704 KB Output is correct
109 Correct 190 ms 23088 KB Output is correct
110 Correct 271 ms 35132 KB Output is correct
111 Correct 252 ms 22288 KB Output is correct