oj.uz

Submission #683851

# Submission time Handle Problem Language Result Execution time Memory
683851 2023-01-19T13:35:53 Z victor_gao Power Plant (JOI20_power) C++17
100 / 100
 175 ms 36444 KB 
//#pragma GCC optimize("Ofast,unroll-loops,O3")
//#pragma GCC optimize("avx,avx2,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,fma,tune=native")
#include<bits/stdc++.h>
//#include<bits/extc++.h>
//#pragma pack(1)
#define fast ios::sync_with_stdio(0); cin.tie(0);
#define int long long
#define pii pair<int,int>
#define x first
#define y second
#define N 200015
using namespace std;
//using namespace __gnu_pbds;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//typedef tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update> order_multiset;
//typedef tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> order_set;
int n,have[N],dp[N],ans=0,root=1;
vector<int>g[N];
void dfs(int p,int lp){
    int tans=0,mx=0,cnt=0,mh=0;
    for (auto i:g[p]){
        if (i!=lp){
            dfs(i,p);
            tans+=have[i];
            mh=max(mh,have[i]);
            if (have[i]) cnt++;
            mx=max({mx,dp[i]});
        }
    }
  //  cout<<p<<" -> "<<mx<<" "<<mh<<' '<<tans<<" "<<have[p]<<'\n';
    dp[p]=max({mx,mh+have[p]});
    if (cnt<=1) dp[p]=max(dp[p],tans+have[p]);
    else dp[p]=max(dp[p],tans-have[p]);
    have[p]=max({have[p],tans-have[p],cnt-have[p]});
}
signed main(){
    fast
    cin>>n;
    for (int i=1;i<n;i++){
        int a,b; cin>>a>>b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    for (int i=1;i<=n;i++){
        char c; cin>>c;
        have[i]=c-'0';
    }
    dfs(1,0);
  //  for (int i=1;i<=n;i++)
  //      cout<<dp[i]<<' ';
  //  cout<<'\n';
    cout<<dp[1]<<'\n';
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 5040 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5040 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5032 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4976 KB Output is correct
15 Correct 4 ms 5032 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5036 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 5036 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 5040 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5040 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5032 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4976 KB Output is correct
15 Correct 4 ms 5032 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5036 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 5036 KB Output is correct
22 Correct 5 ms 5100 KB Output is correct
23 Correct 4 ms 5076 KB Output is correct
24 Correct 4 ms 5076 KB Output is correct
25 Correct 4 ms 5200 KB Output is correct
26 Correct 4 ms 5076 KB Output is correct
27 Correct 4 ms 5168 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5204 KB Output is correct
30 Correct 4 ms 5204 KB Output is correct
31 Correct 3 ms 5100 KB Output is correct
32 Correct 3 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 5076 KB Output is correct
35 Correct 3 ms 5052 KB Output is correct
36 Correct 4 ms 5044 KB Output is correct
37 Correct 4 ms 5044 KB Output is correct
38 Correct 4 ms 5076 KB Output is correct
39 Correct 3 ms 5204 KB Output is correct
40 Correct 4 ms 5204 KB Output is correct
41 Correct 3 ms 5172 KB Output is correct
42 Correct 4 ms 5176 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 4 ms 5100 KB Output is correct
45 Correct 3 ms 5164 KB Output is correct
46 Correct 3 ms 5076 KB Output is correct
47 Correct 5 ms 5180 KB Output is correct
48 Correct 3 ms 5224 KB Output is correct
49 Correct 3 ms 5204 KB Output is correct
50 Correct 4 ms 5204 KB Output is correct
51 Correct 4 ms 5204 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 3 ms 5076 KB Output is correct
54 Correct 3 ms 5204 KB Output is correct
55 Correct 3 ms 5096 KB Output is correct
56 Correct 4 ms 5204 KB Output is correct
57 Correct 4 ms 5228 KB Output is correct
58 Correct 3 ms 5176 KB Output is correct
59 Correct 3 ms 5076 KB Output is correct
60 Correct 3 ms 5232 KB Output is correct
61 Correct 4 ms 5076 KB Output is correct
62 Correct 4 ms 5332 KB Output is correct
63 Correct 4 ms 5076 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 5040 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5040 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5032 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4976 KB Output is correct
15 Correct 4 ms 5032 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5036 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 5036 KB Output is correct
22 Correct 5 ms 5100 KB Output is correct
23 Correct 4 ms 5076 KB Output is correct
24 Correct 4 ms 5076 KB Output is correct
25 Correct 4 ms 5200 KB Output is correct
26 Correct 4 ms 5076 KB Output is correct
27 Correct 4 ms 5168 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5204 KB Output is correct
30 Correct 4 ms 5204 KB Output is correct
31 Correct 3 ms 5100 KB Output is correct
32 Correct 3 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 5076 KB Output is correct
35 Correct 3 ms 5052 KB Output is correct
36 Correct 4 ms 5044 KB Output is correct
37 Correct 4 ms 5044 KB Output is correct
38 Correct 4 ms 5076 KB Output is correct
39 Correct 3 ms 5204 KB Output is correct
40 Correct 4 ms 5204 KB Output is correct
41 Correct 3 ms 5172 KB Output is correct
42 Correct 4 ms 5176 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 4 ms 5100 KB Output is correct
45 Correct 3 ms 5164 KB Output is correct
46 Correct 3 ms 5076 KB Output is correct
47 Correct 5 ms 5180 KB Output is correct
48 Correct 3 ms 5224 KB Output is correct
49 Correct 3 ms 5204 KB Output is correct
50 Correct 4 ms 5204 KB Output is correct
51 Correct 4 ms 5204 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 3 ms 5076 KB Output is correct
54 Correct 3 ms 5204 KB Output is correct
55 Correct 3 ms 5096 KB Output is correct
56 Correct 4 ms 5204 KB Output is correct
57 Correct 4 ms 5228 KB Output is correct
58 Correct 3 ms 5176 KB Output is correct
59 Correct 3 ms 5076 KB Output is correct
60 Correct 3 ms 5232 KB Output is correct
61 Correct 4 ms 5076 KB Output is correct
62 Correct 4 ms 5332 KB Output is correct
63 Correct 4 ms 5076 KB Output is correct
64 Correct 121 ms 18096 KB Output is correct
65 Correct 175 ms 18212 KB Output is correct
66 Correct 149 ms 18212 KB Output is correct
67 Correct 126 ms 18208 KB Output is correct
68 Correct 123 ms 18196 KB Output is correct
69 Correct 121 ms 18092 KB Output is correct
70 Correct 131 ms 18100 KB Output is correct
71 Correct 151 ms 18124 KB Output is correct
72 Correct 135 ms 18148 KB Output is correct
73 Correct 140 ms 34876 KB Output is correct
74 Correct 138 ms 34852 KB Output is correct
75 Correct 144 ms 19428 KB Output is correct
76 Correct 151 ms 19432 KB Output is correct
77 Correct 127 ms 18188 KB Output is correct
78 Correct 130 ms 18192 KB Output is correct
79 Correct 121 ms 18200 KB Output is correct
80 Correct 144 ms 18120 KB Output is correct
81 Correct 96 ms 18092 KB Output is correct
82 Correct 115 ms 18068 KB Output is correct
83 Correct 146 ms 25272 KB Output is correct
84 Correct 160 ms 28352 KB Output is correct
85 Correct 154 ms 27800 KB Output is correct
86 Correct 127 ms 20044 KB Output is correct
87 Correct 127 ms 19276 KB Output is correct
88 Correct 126 ms 19344 KB Output is correct
89 Correct 117 ms 19384 KB Output is correct
90 Correct 131 ms 19040 KB Output is correct
91 Correct 142 ms 19376 KB Output is correct
92 Correct 118 ms 19788 KB Output is correct
93 Correct 110 ms 22988 KB Output is correct
94 Correct 128 ms 25316 KB Output is correct
95 Correct 125 ms 23564 KB Output is correct
96 Correct 126 ms 21044 KB Output is correct
97 Correct 121 ms 18972 KB Output is correct
98 Correct 129 ms 18292 KB Output is correct
99 Correct 139 ms 18324 KB Output is correct
100 Correct 113 ms 22396 KB Output is correct
101 Correct 116 ms 19532 KB Output is correct
102 Correct 106 ms 18536 KB Output is correct
103 Correct 156 ms 18768 KB Output is correct
104 Correct 69 ms 18736 KB Output is correct
105 Correct 136 ms 30348 KB Output is correct
106 Correct 80 ms 18612 KB Output is correct
107 Correct 68 ms 18572 KB Output is correct
108 Correct 157 ms 36040 KB Output is correct
109 Correct 79 ms 18772 KB Output is correct
110 Correct 133 ms 36444 KB Output is correct
111 Correct 111 ms 18124 KB Output is correct