| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 924963 |
2024-02-10T07:22:44 Z |
pan |
Power Plant (JOI20_power) |
C++17 |
|
119 ms |
32852 KB |
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//#include "bits_stdc++.h"
#include <stdio.h>
#include <algorithm>
#include <memory.h>
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define input(x) scanf("%lld", &x);
#define print(x, y) printf("%lld%c", x, y);
#define show(x) cerr << #x << " is " << x << endl;
#define show2(x,y) cerr << #x << " is " << x << " " << #y << " is " << y << endl;
#define show3(x,y,z) cerr << #x << " is " << x << " " << #y << " is " << y << " " << #z << " is " << z << endl;
#define discretize(x) sort(x.begin(), x.end()); x.erase(unique(x.begin(), x.end()), x.end());
using namespace std;
//using namespace __gnu_pbds;
#define ordered_set tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>
#define ordered_multiset tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update>
typedef long long ll;
typedef long double ld;
typedef pair<ld, ll> pd;
typedef pair<string, ll> psl;
typedef pair<ll, ll> pi;
typedef pair<ll, pi> pii;
ll n, x, y, answer = 0;
string power;
vector<ll> adj[200005];
ll dp[200005], ans[200005];
// dp -> if 0, 1 can be chosen freely under this subtree
vector<ll> visited;
void dfs(ll from)
{
visited[from] = true;
ll summ = 0, maxx = 0;
for (ll u: adj[from])
{
if (visited[u]) continue;
dfs(u);
summ+=dp[u];
maxx = max(maxx, dp[u]);
}
if (power[from-1]=='1') {ans[from] = max(summ-1, maxx + 1); dp[from] = max(1LL, summ-1);}
// to make below "activated valid, current from must be broken -> summ-1
// else all must be disabled, with only current from left activated
else {ans[from] = dp[from] = summ;}
answer = max(answer, ans[from]);
}
int main()
{
input(n);
for (ll i=0; i<n-1; ++i)
{
input(x); input(y);
adj[x].pb(y);
adj[y].pb(x);
}
cin >> power;
visited.assign(n+1, false);
dfs(1);
print(answer, '\n');
return 0;
}
Compilation message
power.cpp: In function 'int main()':
power.cpp:14:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
14 | #define input(x) scanf("%lld", &x);
| ~~~~~^~~~~~~~~~~~
power.cpp:57:2: note: in expansion of macro 'input'
57 | input(n);
| ^~~~~
power.cpp:14:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
14 | #define input(x) scanf("%lld", &x);
| ~~~~~^~~~~~~~~~~~
power.cpp:60:3: note: in expansion of macro 'input'
60 | input(x); input(y);
| ^~~~~
power.cpp:14:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
14 | #define input(x) scanf("%lld", &x);
| ~~~~~^~~~~~~~~~~~
power.cpp:60:13: note: in expansion of macro 'input'
60 | input(x); input(y);
| ^~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 2 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 3 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 4 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 5 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 6 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 7 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 8 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 9 |
Correct |
2 ms |
8084 KB |
Output is correct |
| 10 |
Correct |
2 ms |
8280 KB |
Output is correct |
| 11 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 12 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 13 |
Correct |
2 ms |
8084 KB |
Output is correct |
| 14 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 15 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 16 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 17 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 18 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 19 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 20 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 21 |
Correct |
2 ms |
8028 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 2 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 3 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 4 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 5 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 6 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 7 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 8 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 9 |
Correct |
2 ms |
8084 KB |
Output is correct |
| 10 |
Correct |
2 ms |
8280 KB |
Output is correct |
| 11 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 12 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 13 |
Correct |
2 ms |
8084 KB |
Output is correct |
| 14 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 15 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 16 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 17 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 18 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 19 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 20 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 21 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 22 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 23 |
Correct |
2 ms |
8220 KB |
Output is correct |
| 24 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 25 |
Correct |
2 ms |
8280 KB |
Output is correct |
| 26 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 27 |
Correct |
3 ms |
8096 KB |
Output is correct |
| 28 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 29 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 30 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 31 |
Correct |
2 ms |
8024 KB |
Output is correct |
| 32 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 33 |
Correct |
3 ms |
8024 KB |
Output is correct |
| 34 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 35 |
Correct |
2 ms |
8100 KB |
Output is correct |
| 36 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 37 |
Correct |
2 ms |
8024 KB |
Output is correct |
| 38 |
Correct |
2 ms |
8024 KB |
Output is correct |
| 39 |
Correct |
3 ms |
8024 KB |
Output is correct |
| 40 |
Correct |
3 ms |
8024 KB |
Output is correct |
| 41 |
Correct |
2 ms |
8284 KB |
Output is correct |
| 42 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 43 |
Correct |
3 ms |
8112 KB |
Output is correct |
| 44 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 45 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 46 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 47 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 48 |
Correct |
2 ms |
8284 KB |
Output is correct |
| 49 |
Correct |
2 ms |
8284 KB |
Output is correct |
| 50 |
Correct |
4 ms |
8100 KB |
Output is correct |
| 51 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 52 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 53 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 54 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 55 |
Correct |
3 ms |
8104 KB |
Output is correct |
| 56 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 57 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 58 |
Correct |
3 ms |
8100 KB |
Output is correct |
| 59 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 60 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 61 |
Correct |
2 ms |
8024 KB |
Output is correct |
| 62 |
Correct |
3 ms |
8544 KB |
Output is correct |
| 63 |
Correct |
2 ms |
8028 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 2 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 3 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 4 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 5 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 6 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 7 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 8 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 9 |
Correct |
2 ms |
8084 KB |
Output is correct |
| 10 |
Correct |
2 ms |
8280 KB |
Output is correct |
| 11 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 12 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 13 |
Correct |
2 ms |
8084 KB |
Output is correct |
| 14 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 15 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 16 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 17 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 18 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 19 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 20 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 21 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 22 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 23 |
Correct |
2 ms |
8220 KB |
Output is correct |
| 24 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 25 |
Correct |
2 ms |
8280 KB |
Output is correct |
| 26 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 27 |
Correct |
3 ms |
8096 KB |
Output is correct |
| 28 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 29 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 30 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 31 |
Correct |
2 ms |
8024 KB |
Output is correct |
| 32 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 33 |
Correct |
3 ms |
8024 KB |
Output is correct |
| 34 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 35 |
Correct |
2 ms |
8100 KB |
Output is correct |
| 36 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 37 |
Correct |
2 ms |
8024 KB |
Output is correct |
| 38 |
Correct |
2 ms |
8024 KB |
Output is correct |
| 39 |
Correct |
3 ms |
8024 KB |
Output is correct |
| 40 |
Correct |
3 ms |
8024 KB |
Output is correct |
| 41 |
Correct |
2 ms |
8284 KB |
Output is correct |
| 42 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 43 |
Correct |
3 ms |
8112 KB |
Output is correct |
| 44 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 45 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 46 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 47 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 48 |
Correct |
2 ms |
8284 KB |
Output is correct |
| 49 |
Correct |
2 ms |
8284 KB |
Output is correct |
| 50 |
Correct |
4 ms |
8100 KB |
Output is correct |
| 51 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 52 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 53 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 54 |
Correct |
3 ms |
8028 KB |
Output is correct |
| 55 |
Correct |
3 ms |
8104 KB |
Output is correct |
| 56 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 57 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 58 |
Correct |
3 ms |
8100 KB |
Output is correct |
| 59 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 60 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 61 |
Correct |
2 ms |
8024 KB |
Output is correct |
| 62 |
Correct |
3 ms |
8544 KB |
Output is correct |
| 63 |
Correct |
2 ms |
8028 KB |
Output is correct |
| 64 |
Correct |
86 ms |
20200 KB |
Output is correct |
| 65 |
Correct |
82 ms |
20196 KB |
Output is correct |
| 66 |
Correct |
98 ms |
20016 KB |
Output is correct |
| 67 |
Correct |
82 ms |
20196 KB |
Output is correct |
| 68 |
Correct |
82 ms |
20196 KB |
Output is correct |
| 69 |
Correct |
103 ms |
20060 KB |
Output is correct |
| 70 |
Correct |
81 ms |
20196 KB |
Output is correct |
| 71 |
Correct |
92 ms |
20192 KB |
Output is correct |
| 72 |
Correct |
95 ms |
20196 KB |
Output is correct |
| 73 |
Correct |
119 ms |
31600 KB |
Output is correct |
| 74 |
Correct |
93 ms |
31716 KB |
Output is correct |
| 75 |
Correct |
101 ms |
21408 KB |
Output is correct |
| 76 |
Correct |
87 ms |
21628 KB |
Output is correct |
| 77 |
Correct |
82 ms |
19940 KB |
Output is correct |
| 78 |
Correct |
85 ms |
20008 KB |
Output is correct |
| 79 |
Correct |
79 ms |
19988 KB |
Output is correct |
| 80 |
Correct |
93 ms |
19940 KB |
Output is correct |
| 81 |
Correct |
82 ms |
20160 KB |
Output is correct |
| 82 |
Correct |
94 ms |
20172 KB |
Output is correct |
| 83 |
Correct |
94 ms |
25128 KB |
Output is correct |
| 84 |
Correct |
106 ms |
27456 KB |
Output is correct |
| 85 |
Correct |
93 ms |
27112 KB |
Output is correct |
| 86 |
Correct |
105 ms |
21492 KB |
Output is correct |
| 87 |
Correct |
84 ms |
20768 KB |
Output is correct |
| 88 |
Correct |
84 ms |
20852 KB |
Output is correct |
| 89 |
Correct |
80 ms |
20960 KB |
Output is correct |
| 90 |
Correct |
80 ms |
20728 KB |
Output is correct |
| 91 |
Correct |
98 ms |
21072 KB |
Output is correct |
| 92 |
Correct |
79 ms |
21292 KB |
Output is correct |
| 93 |
Correct |
86 ms |
23640 KB |
Output is correct |
| 94 |
Correct |
81 ms |
25112 KB |
Output is correct |
| 95 |
Correct |
101 ms |
24272 KB |
Output is correct |
| 96 |
Correct |
80 ms |
22016 KB |
Output is correct |
| 97 |
Correct |
88 ms |
20752 KB |
Output is correct |
| 98 |
Correct |
78 ms |
20196 KB |
Output is correct |
| 99 |
Correct |
76 ms |
20200 KB |
Output is correct |
| 100 |
Correct |
81 ms |
23112 KB |
Output is correct |
| 101 |
Correct |
87 ms |
20964 KB |
Output is correct |
| 102 |
Correct |
76 ms |
20440 KB |
Output is correct |
| 103 |
Correct |
89 ms |
20528 KB |
Output is correct |
| 104 |
Correct |
75 ms |
20668 KB |
Output is correct |
| 105 |
Correct |
110 ms |
28444 KB |
Output is correct |
| 106 |
Correct |
66 ms |
20708 KB |
Output is correct |
| 107 |
Correct |
63 ms |
20676 KB |
Output is correct |
| 108 |
Correct |
105 ms |
32488 KB |
Output is correct |
| 109 |
Correct |
61 ms |
20880 KB |
Output is correct |
| 110 |
Correct |
99 ms |
32852 KB |
Output is correct |
| 111 |
Correct |
77 ms |
19936 KB |
Output is correct |
