oj.uz

Submission #818419

# Submission time Handle Problem Language Result Execution time Memory
818419 2023-08-10T04:46:43 Z vjudge1 Power Plant (JOI20_power) C++17
100 / 100
 199 ms 37000 KB 
#include <bits/stdc++.h>



using namespace std;

#define TL ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define rall(s) s.rbegin(),s.rend()
#define all(s) s.begin(),s.end()
#define pb push_back
#define fi first
#define se second
#define ll long long
#define ld long double
#define YES cout<<"YES\n"
#define Yes cout<<"Yes\n"
#define yes cout<<"yes\n"
#define NO cout<<"NO\n"
#define No cout<<"No\n"
#define no cout<<"no\n"


const int N = 5e5 + 9 , mod = 1e9 + 7;
ll  d[N] , a[N] = {}, dp[N] ,  b[N] , c[N];
vector<int>v[N];

void dfs(int n , int p = 0){
    for(auto to : v[n])
        if(to != p)
            dfs(to , n);
    for(auto to : v[n])
        if(to != p)
            if(dp[to] + b[n] >= c[n])
                c[n] = dp[to] + b[n];
    dp[n] -= b[n];
    dp[n] = max(dp[n] , b[n]);
    dp[p] += dp[n];
}

void solve(){
    ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
    cin>>n;
    for(i = 1; i < n; i++){
        cin>>l>>r;
        v[l].pb(r);
        v[r].pb(l);
    }
    string a;
    cin>>a;
    for(i = 1; i <= n; i++)
        b[i] = (a[i - 1] == '1');
    dfs(1);
    for(i = 1; i <= n; i++)
        mx = max({mx , c[i] , dp[i]});
    cout<<mx<<"\n";
}

int main(){
    /*
     TL;
     #ifndef ONLINE_JUDGE
     freopen("input.txt", "r", stdin);
     freopen("output.txt", "w", stdout);
     #endif
     */
int t = 1;
//cin>>t;

while(t--)
     {
     solve();
     }

}
// Author : حسن

Compilation message

power.cpp: In function 'void solve()':
power.cpp:42:8: warning: unused variable 'q' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |        ^
power.cpp:42:16: warning: unused variable 'j' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                ^
power.cpp:42:20: warning: unused variable 'm' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                    ^
power.cpp:42:26: warning: unused variable 'z' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                          ^
power.cpp:42:29: warning: unused variable 's' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                             ^
power.cpp:42:37: warning: unused variable 'f' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                     ^
power.cpp:42:49: warning: unused variable 'k' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                                 ^
power.cpp:42:53: warning: unused variable 'x' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                                     ^
power.cpp:42:57: warning: unused variable 'y' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                                         ^
power.cpp:42:61: warning: unused variable 'mn' [-Wunused-variable]
   42 |     ll q , i , j , m ,n, z ,s = 0 , f , l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                                             ^~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12052 KB Output is correct
2 Correct 7 ms 12056 KB Output is correct
3 Correct 6 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 7 ms 12048 KB Output is correct
6 Correct 7 ms 12048 KB Output is correct
7 Correct 6 ms 11988 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 7 ms 11988 KB Output is correct
10 Correct 5 ms 11988 KB Output is correct
11 Correct 7 ms 11988 KB Output is correct
12 Correct 6 ms 11988 KB Output is correct
13 Correct 6 ms 12052 KB Output is correct
14 Correct 6 ms 12048 KB Output is correct
15 Correct 6 ms 11964 KB Output is correct
16 Correct 5 ms 11988 KB Output is correct
17 Correct 6 ms 11988 KB Output is correct
18 Correct 6 ms 12036 KB Output is correct
19 Correct 6 ms 12056 KB Output is correct
20 Correct 6 ms 11988 KB Output is correct
21 Correct 7 ms 11988 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12052 KB Output is correct
2 Correct 7 ms 12056 KB Output is correct
3 Correct 6 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 7 ms 12048 KB Output is correct
6 Correct 7 ms 12048 KB Output is correct
7 Correct 6 ms 11988 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 7 ms 11988 KB Output is correct
10 Correct 5 ms 11988 KB Output is correct
11 Correct 7 ms 11988 KB Output is correct
12 Correct 6 ms 11988 KB Output is correct
13 Correct 6 ms 12052 KB Output is correct
14 Correct 6 ms 12048 KB Output is correct
15 Correct 6 ms 11964 KB Output is correct
16 Correct 5 ms 11988 KB Output is correct
17 Correct 6 ms 11988 KB Output is correct
18 Correct 6 ms 12036 KB Output is correct
19 Correct 6 ms 12056 KB Output is correct
20 Correct 6 ms 11988 KB Output is correct
21 Correct 7 ms 11988 KB Output is correct
22 Correct 6 ms 12116 KB Output is correct
23 Correct 7 ms 12116 KB Output is correct
24 Correct 6 ms 12112 KB Output is correct
25 Correct 7 ms 12116 KB Output is correct
26 Correct 7 ms 12116 KB Output is correct
27 Correct 7 ms 12136 KB Output is correct
28 Correct 7 ms 12116 KB Output is correct
29 Correct 7 ms 12244 KB Output is correct
30 Correct 7 ms 12244 KB Output is correct
31 Correct 6 ms 12096 KB Output is correct
32 Correct 7 ms 12116 KB Output is correct
33 Correct 7 ms 12148 KB Output is correct
34 Correct 6 ms 12116 KB Output is correct
35 Correct 7 ms 12148 KB Output is correct
36 Correct 7 ms 12188 KB Output is correct
37 Correct 7 ms 12192 KB Output is correct
38 Correct 7 ms 12244 KB Output is correct
39 Correct 8 ms 12244 KB Output is correct
40 Correct 7 ms 12116 KB Output is correct
41 Correct 7 ms 12188 KB Output is correct
42 Correct 8 ms 12116 KB Output is correct
43 Correct 8 ms 12140 KB Output is correct
44 Correct 8 ms 12116 KB Output is correct
45 Correct 7 ms 12192 KB Output is correct
46 Correct 6 ms 12188 KB Output is correct
47 Correct 7 ms 12116 KB Output is correct
48 Correct 7 ms 12244 KB Output is correct
49 Correct 7 ms 12244 KB Output is correct
50 Correct 7 ms 12116 KB Output is correct
51 Correct 6 ms 12116 KB Output is correct
52 Correct 7 ms 12188 KB Output is correct
53 Correct 7 ms 12192 KB Output is correct
54 Correct 7 ms 12128 KB Output is correct
55 Correct 7 ms 12116 KB Output is correct
56 Correct 6 ms 12192 KB Output is correct
57 Correct 7 ms 12244 KB Output is correct
58 Correct 7 ms 12192 KB Output is correct
59 Correct 8 ms 12196 KB Output is correct
60 Correct 7 ms 12216 KB Output is correct
61 Correct 6 ms 12116 KB Output is correct
62 Correct 7 ms 12244 KB Output is correct
63 Correct 7 ms 12116 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12052 KB Output is correct
2 Correct 7 ms 12056 KB Output is correct
3 Correct 6 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 7 ms 12048 KB Output is correct
6 Correct 7 ms 12048 KB Output is correct
7 Correct 6 ms 11988 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 7 ms 11988 KB Output is correct
10 Correct 5 ms 11988 KB Output is correct
11 Correct 7 ms 11988 KB Output is correct
12 Correct 6 ms 11988 KB Output is correct
13 Correct 6 ms 12052 KB Output is correct
14 Correct 6 ms 12048 KB Output is correct
15 Correct 6 ms 11964 KB Output is correct
16 Correct 5 ms 11988 KB Output is correct
17 Correct 6 ms 11988 KB Output is correct
18 Correct 6 ms 12036 KB Output is correct
19 Correct 6 ms 12056 KB Output is correct
20 Correct 6 ms 11988 KB Output is correct
21 Correct 7 ms 11988 KB Output is correct
22 Correct 6 ms 12116 KB Output is correct
23 Correct 7 ms 12116 KB Output is correct
24 Correct 6 ms 12112 KB Output is correct
25 Correct 7 ms 12116 KB Output is correct
26 Correct 7 ms 12116 KB Output is correct
27 Correct 7 ms 12136 KB Output is correct
28 Correct 7 ms 12116 KB Output is correct
29 Correct 7 ms 12244 KB Output is correct
30 Correct 7 ms 12244 KB Output is correct
31 Correct 6 ms 12096 KB Output is correct
32 Correct 7 ms 12116 KB Output is correct
33 Correct 7 ms 12148 KB Output is correct
34 Correct 6 ms 12116 KB Output is correct
35 Correct 7 ms 12148 KB Output is correct
36 Correct 7 ms 12188 KB Output is correct
37 Correct 7 ms 12192 KB Output is correct
38 Correct 7 ms 12244 KB Output is correct
39 Correct 8 ms 12244 KB Output is correct
40 Correct 7 ms 12116 KB Output is correct
41 Correct 7 ms 12188 KB Output is correct
42 Correct 8 ms 12116 KB Output is correct
43 Correct 8 ms 12140 KB Output is correct
44 Correct 8 ms 12116 KB Output is correct
45 Correct 7 ms 12192 KB Output is correct
46 Correct 6 ms 12188 KB Output is correct
47 Correct 7 ms 12116 KB Output is correct
48 Correct 7 ms 12244 KB Output is correct
49 Correct 7 ms 12244 KB Output is correct
50 Correct 7 ms 12116 KB Output is correct
51 Correct 6 ms 12116 KB Output is correct
52 Correct 7 ms 12188 KB Output is correct
53 Correct 7 ms 12192 KB Output is correct
54 Correct 7 ms 12128 KB Output is correct
55 Correct 7 ms 12116 KB Output is correct
56 Correct 6 ms 12192 KB Output is correct
57 Correct 7 ms 12244 KB Output is correct
58 Correct 7 ms 12192 KB Output is correct
59 Correct 8 ms 12196 KB Output is correct
60 Correct 7 ms 12216 KB Output is correct
61 Correct 6 ms 12116 KB Output is correct
62 Correct 7 ms 12244 KB Output is correct
63 Correct 7 ms 12116 KB Output is correct
64 Correct 148 ms 26112 KB Output is correct
65 Correct 155 ms 26044 KB Output is correct
66 Correct 152 ms 26152 KB Output is correct
67 Correct 142 ms 26152 KB Output is correct
68 Correct 163 ms 26036 KB Output is correct
69 Correct 156 ms 26240 KB Output is correct
70 Correct 153 ms 26120 KB Output is correct
71 Correct 157 ms 26044 KB Output is correct
72 Correct 165 ms 26172 KB Output is correct
73 Correct 151 ms 36212 KB Output is correct
74 Correct 165 ms 36172 KB Output is correct
75 Correct 142 ms 26048 KB Output is correct
76 Correct 147 ms 26056 KB Output is correct
77 Correct 175 ms 26040 KB Output is correct
78 Correct 159 ms 26036 KB Output is correct
79 Correct 156 ms 26044 KB Output is correct
80 Correct 146 ms 26036 KB Output is correct
81 Correct 125 ms 26444 KB Output is correct
82 Correct 148 ms 26280 KB Output is correct
83 Correct 156 ms 30212 KB Output is correct
84 Correct 170 ms 31940 KB Output is correct
85 Correct 199 ms 31660 KB Output is correct
86 Correct 162 ms 27152 KB Output is correct
87 Correct 188 ms 26732 KB Output is correct
88 Correct 158 ms 27232 KB Output is correct
89 Correct 140 ms 27232 KB Output is correct
90 Correct 163 ms 27060 KB Output is correct
91 Correct 164 ms 27176 KB Output is correct
92 Correct 138 ms 27540 KB Output is correct
93 Correct 182 ms 29268 KB Output is correct
94 Correct 136 ms 30700 KB Output is correct
95 Correct 147 ms 29600 KB Output is correct
96 Correct 138 ms 28292 KB Output is correct
97 Correct 166 ms 27040 KB Output is correct
98 Correct 161 ms 26700 KB Output is correct
99 Correct 140 ms 26444 KB Output is correct
100 Correct 138 ms 29072 KB Output is correct
101 Correct 162 ms 27492 KB Output is correct
102 Correct 134 ms 26752 KB Output is correct
103 Correct 143 ms 26636 KB Output is correct
104 Correct 121 ms 25456 KB Output is correct
105 Correct 188 ms 33616 KB Output is correct
106 Correct 116 ms 25284 KB Output is correct
107 Correct 113 ms 25308 KB Output is correct
108 Correct 150 ms 36832 KB Output is correct
109 Correct 118 ms 25436 KB Output is correct
110 Correct 186 ms 37000 KB Output is correct
111 Correct 155 ms 26028 KB Output is correct