oj.uz

Submission #298523

# Submission time Handle Problem Language Result Execution time Memory
298523 2020-09-13T04:17:30 Z BeanZ Power Plant (JOI20_power) C++14
100 / 100
 217 ms 29752 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define endl '\n'
const int N = 2e5 + 5;
ll dp[N], cur[N];
vector<ll> node[N];
string s;
ll ans = 0;
void dfs(ll u, ll p){
        vector<ll> val;
        for (auto j : node[u]){
                if (j == p) continue;
                dfs(j, u);
                val.push_back(dp[j]);
        }
        if (val.size()){
                sort(val.begin(), val.end(), greater<ll>());
                ans = max(ans, val[0] + (s[u] == '1'));
                ll sum = 0;
                for (auto j : val) sum += j;
                ans = max(ans, sum - (s[u] == '1'));
                dp[u] = max((ll)(s[u] == '1'), sum - (s[u] == '1'));
        } else {
                dp[u] = (s[u] == '1');
                ans = max(ans, dp[u]);
        }
}
int main(){
        ios_base::sync_with_stdio(false);
        cin.tie(0);
        if (fopen("A.INP", "r")){
                freopen("A.INP", "r", stdin);
                freopen("A.OUT", "w", stdout);
        }
        ll n;
        cin >> n;
        for (int i = 1; i < n; i++){
                ll u, v;
                cin >> u >> v;
                node[u].push_back(v);
                node[v].push_back(u);
        }
        cin >> s;
        s = " " + s;
        dfs(1, 1);
        cout << ans;
}
/*
7
1 2
1 3
2 4
3 5
1 6
1 7
1001111
*/

Compilation message

power.cpp: In function 'int main()':
power.cpp:35:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   35 |                 freopen("A.INP", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
power.cpp:36:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   36 |                 freopen("A.OUT", "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 5 ms 5120 KB Output is correct
23 Correct 5 ms 5120 KB Output is correct
24 Correct 5 ms 5120 KB Output is correct
25 Correct 5 ms 5120 KB Output is correct
26 Correct 5 ms 5120 KB Output is correct
27 Correct 5 ms 5120 KB Output is correct
28 Correct 5 ms 5120 KB Output is correct
29 Correct 5 ms 5248 KB Output is correct
30 Correct 5 ms 5248 KB Output is correct
31 Correct 5 ms 5120 KB Output is correct
32 Correct 5 ms 5120 KB Output is correct
33 Correct 5 ms 5120 KB Output is correct
34 Correct 5 ms 5120 KB Output is correct
35 Correct 5 ms 5120 KB Output is correct
36 Correct 5 ms 5120 KB Output is correct
37 Correct 5 ms 5120 KB Output is correct
38 Correct 5 ms 5120 KB Output is correct
39 Correct 5 ms 5248 KB Output is correct
40 Correct 5 ms 5248 KB Output is correct
41 Correct 5 ms 5248 KB Output is correct
42 Correct 5 ms 5120 KB Output is correct
43 Correct 5 ms 5120 KB Output is correct
44 Correct 5 ms 5248 KB Output is correct
45 Correct 5 ms 5120 KB Output is correct
46 Correct 5 ms 5120 KB Output is correct
47 Correct 5 ms 5120 KB Output is correct
48 Correct 5 ms 5248 KB Output is correct
49 Correct 5 ms 5248 KB Output is correct
50 Correct 5 ms 5248 KB Output is correct
51 Correct 5 ms 5120 KB Output is correct
52 Correct 5 ms 5120 KB Output is correct
53 Correct 5 ms 5248 KB Output is correct
54 Correct 5 ms 5120 KB Output is correct
55 Correct 5 ms 5120 KB Output is correct
56 Correct 4 ms 5248 KB Output is correct
57 Correct 5 ms 5248 KB Output is correct
58 Correct 4 ms 5248 KB Output is correct
59 Correct 4 ms 5248 KB Output is correct
60 Correct 4 ms 5248 KB Output is correct
61 Correct 5 ms 5248 KB Output is correct
62 Correct 5 ms 5248 KB Output is correct
63 Correct 5 ms 5120 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 5 ms 5120 KB Output is correct
23 Correct 5 ms 5120 KB Output is correct
24 Correct 5 ms 5120 KB Output is correct
25 Correct 5 ms 5120 KB Output is correct
26 Correct 5 ms 5120 KB Output is correct
27 Correct 5 ms 5120 KB Output is correct
28 Correct 5 ms 5120 KB Output is correct
29 Correct 5 ms 5248 KB Output is correct
30 Correct 5 ms 5248 KB Output is correct
31 Correct 5 ms 5120 KB Output is correct
32 Correct 5 ms 5120 KB Output is correct
33 Correct 5 ms 5120 KB Output is correct
34 Correct 5 ms 5120 KB Output is correct
35 Correct 5 ms 5120 KB Output is correct
36 Correct 5 ms 5120 KB Output is correct
37 Correct 5 ms 5120 KB Output is correct
38 Correct 5 ms 5120 KB Output is correct
39 Correct 5 ms 5248 KB Output is correct
40 Correct 5 ms 5248 KB Output is correct
41 Correct 5 ms 5248 KB Output is correct
42 Correct 5 ms 5120 KB Output is correct
43 Correct 5 ms 5120 KB Output is correct
44 Correct 5 ms 5248 KB Output is correct
45 Correct 5 ms 5120 KB Output is correct
46 Correct 5 ms 5120 KB Output is correct
47 Correct 5 ms 5120 KB Output is correct
48 Correct 5 ms 5248 KB Output is correct
49 Correct 5 ms 5248 KB Output is correct
50 Correct 5 ms 5248 KB Output is correct
51 Correct 5 ms 5120 KB Output is correct
52 Correct 5 ms 5120 KB Output is correct
53 Correct 5 ms 5248 KB Output is correct
54 Correct 5 ms 5120 KB Output is correct
55 Correct 5 ms 5120 KB Output is correct
56 Correct 4 ms 5248 KB Output is correct
57 Correct 5 ms 5248 KB Output is correct
58 Correct 4 ms 5248 KB Output is correct
59 Correct 4 ms 5248 KB Output is correct
60 Correct 4 ms 5248 KB Output is correct
61 Correct 5 ms 5248 KB Output is correct
62 Correct 5 ms 5248 KB Output is correct
63 Correct 5 ms 5120 KB Output is correct
64 Correct 200 ms 17020 KB Output is correct
65 Correct 196 ms 17012 KB Output is correct
66 Correct 196 ms 16996 KB Output is correct
67 Correct 198 ms 17008 KB Output is correct
68 Correct 197 ms 17072 KB Output is correct
69 Correct 204 ms 17008 KB Output is correct
70 Correct 197 ms 17028 KB Output is correct
71 Correct 199 ms 17024 KB Output is correct
72 Correct 209 ms 17008 KB Output is correct
73 Correct 214 ms 28788 KB Output is correct
74 Correct 217 ms 28660 KB Output is correct
75 Correct 198 ms 18160 KB Output is correct
76 Correct 216 ms 18168 KB Output is correct
77 Correct 198 ms 17004 KB Output is correct
78 Correct 198 ms 17012 KB Output is correct
79 Correct 198 ms 17016 KB Output is correct
80 Correct 203 ms 17136 KB Output is correct
81 Correct 160 ms 18408 KB Output is correct
82 Correct 184 ms 17572 KB Output is correct
83 Correct 214 ms 22424 KB Output is correct
84 Correct 211 ms 24812 KB Output is correct
85 Correct 211 ms 24448 KB Output is correct
86 Correct 206 ms 18420 KB Output is correct
87 Correct 199 ms 17776 KB Output is correct
88 Correct 179 ms 17840 KB Output is correct
89 Correct 179 ms 18048 KB Output is correct
90 Correct 175 ms 17620 KB Output is correct
91 Correct 177 ms 18008 KB Output is correct
92 Correct 174 ms 18276 KB Output is correct
93 Correct 167 ms 21104 KB Output is correct
94 Correct 162 ms 21976 KB Output is correct
95 Correct 164 ms 21432 KB Output is correct
96 Correct 177 ms 19188 KB Output is correct
97 Correct 176 ms 17652 KB Output is correct
98 Correct 177 ms 17188 KB Output is correct
99 Correct 194 ms 17136 KB Output is correct
100 Correct 172 ms 20576 KB Output is correct
101 Correct 167 ms 18036 KB Output is correct
102 Correct 168 ms 17344 KB Output is correct
103 Correct 188 ms 17556 KB Output is correct
104 Correct 107 ms 20580 KB Output is correct
105 Correct 203 ms 25460 KB Output is correct
106 Correct 106 ms 20324 KB Output is correct
107 Correct 104 ms 20324 KB Output is correct
108 Correct 206 ms 29408 KB Output is correct
109 Correct 105 ms 20580 KB Output is correct
110 Correct 213 ms 29752 KB Output is correct
111 Correct 177 ms 17092 KB Output is correct