oj.uz

답안 #393235

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
393235 2021-04-23T02:59:55 Z arwaeystoamneg Power Plant (JOI20_power) C++17
100 / 100
 212 ms 28896 KB 
// EXPLOSION!
#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
#include<unordered_set>
#include<unordered_map>
#include<chrono>

using namespace std;
typedef pair<int, int> pii;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pair<int, int>> vpi;
typedef vector<pair<ll, ll>> vpll;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

#define pb push_back
#define mp make_pair
#define rsz resize
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
#define f first
#define s second
#define cont continue
#define endl '\n'
//#define ednl '\n'
#define test int testc;cin>>testc;while(testc--)
#define pr(a, b) trav(x,a)cerr << x << b; cerr << endl;
#define message cout << "Hello World" << endl;
const int dx[4] = { 1,0,-1,0 }, dy[4] = { 0,1,0,-1 }; // for every grid problem!!
const ll linf = 4000000000000000000LL;
const ll inf = 1000000007;//998244353    

void pv(vi a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vll a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vector<vi>a) {
	F0R(i, sz(a)) { cout << i << endl; pv(a[i]); cout << endl; }
}void pv(vector<vll>a) { F0R(i, sz(a)) { cout << i << endl; pv(a[i]); }cout << endl; }void pv(vector<string>a) { trav(x, a)cout << x << endl; cout << endl; }
void setIO(string s) {
	ios_base::sync_with_stdio(0); cin.tie(0);
	if (sz(s))
	{
		freopen((s + ".in").c_str(), "r", stdin);
		if (s != "test1")
			freopen((s + ".out").c_str(), "w", stdout);
	}
}

const int MAX = 200005;
int n, dp[MAX];
vi adj[MAX];
string a;
int ans = 0;
void solve(int i, int p = -1)
{
	int v = 0;
	trav(x, adj[i])
	{
		if (x == p)continue;
		solve(x, i);
		dp[i] += dp[x];
		v = max(v, dp[x]);
	}
	if (a[i] == '1')
	{
		dp[i] = max(dp[i] - 1, 1);
		ans = max(ans, 1 + v);
		ans = max(ans, dp[i]);
	}
	else
	{
		dp[i] = max(dp[i], 0);
		ans = max(ans, dp[i]);
	}
}
int main() 
{
	setIO("");
	cin >> n;
	F0R(i, n - 1)
	{
		int x, y;
		cin >> x >> y;
		adj[--x].pb(--y);
		adj[y].pb(x);
	}
	cin >> a;
	solve(0);
	cout << ans << endl;
}

Compilation message

power.cpp: In function 'void setIO(std::string)':
power.cpp:48:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   48 |   freopen((s + ".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
power.cpp:50:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   50 |    freopen((s + ".out").c_str(), "w", stdout);
      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 4 ms 5020 KB Output is correct
5 Correct 4 ms 4944 KB Output is correct
6 Correct 3 ms 5020 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 5024 KB Output is correct
11 Correct 4 ms 5016 KB Output is correct
12 Correct 4 ms 4940 KB Output is correct
13 Correct 4 ms 5020 KB Output is correct
14 Correct 4 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 4 ms 5064 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 4 ms 5020 KB Output is correct
5 Correct 4 ms 4944 KB Output is correct
6 Correct 3 ms 5020 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 5024 KB Output is correct
11 Correct 4 ms 5016 KB Output is correct
12 Correct 4 ms 4940 KB Output is correct
13 Correct 4 ms 5020 KB Output is correct
14 Correct 4 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 4 ms 5064 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct
22 Correct 5 ms 5068 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 4 ms 5068 KB Output is correct
25 Correct 6 ms 5068 KB Output is correct
26 Correct 5 ms 5028 KB Output is correct
27 Correct 5 ms 5036 KB Output is correct
28 Correct 4 ms 5032 KB Output is correct
29 Correct 5 ms 5196 KB Output is correct
30 Correct 4 ms 5196 KB Output is correct
31 Correct 4 ms 5040 KB Output is correct
32 Correct 5 ms 5068 KB Output is correct
33 Correct 5 ms 5068 KB Output is correct
34 Correct 4 ms 5028 KB Output is correct
35 Correct 5 ms 5068 KB Output is correct
36 Correct 4 ms 5068 KB Output is correct
37 Correct 4 ms 5028 KB Output is correct
38 Correct 5 ms 5068 KB Output is correct
39 Correct 5 ms 5068 KB Output is correct
40 Correct 5 ms 5068 KB Output is correct
41 Correct 4 ms 5068 KB Output is correct
42 Correct 4 ms 5032 KB Output is correct
43 Correct 4 ms 5068 KB Output is correct
44 Correct 4 ms 5068 KB Output is correct
45 Correct 4 ms 5068 KB Output is correct
46 Correct 4 ms 5068 KB Output is correct
47 Correct 4 ms 5068 KB Output is correct
48 Correct 4 ms 5196 KB Output is correct
49 Correct 5 ms 5160 KB Output is correct
50 Correct 4 ms 5068 KB Output is correct
51 Correct 4 ms 5032 KB Output is correct
52 Correct 5 ms 5068 KB Output is correct
53 Correct 4 ms 5068 KB Output is correct
54 Correct 4 ms 5068 KB Output is correct
55 Correct 5 ms 5032 KB Output is correct
56 Correct 4 ms 5032 KB Output is correct
57 Correct 6 ms 5196 KB Output is correct
58 Correct 4 ms 5068 KB Output is correct
59 Correct 4 ms 5068 KB Output is correct
60 Correct 4 ms 5068 KB Output is correct
61 Correct 4 ms 5068 KB Output is correct
62 Correct 5 ms 5196 KB Output is correct
63 Correct 4 ms 5100 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 4 ms 5020 KB Output is correct
5 Correct 4 ms 4944 KB Output is correct
6 Correct 3 ms 5020 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 5024 KB Output is correct
11 Correct 4 ms 5016 KB Output is correct
12 Correct 4 ms 4940 KB Output is correct
13 Correct 4 ms 5020 KB Output is correct
14 Correct 4 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 4 ms 5064 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct
22 Correct 5 ms 5068 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 4 ms 5068 KB Output is correct
25 Correct 6 ms 5068 KB Output is correct
26 Correct 5 ms 5028 KB Output is correct
27 Correct 5 ms 5036 KB Output is correct
28 Correct 4 ms 5032 KB Output is correct
29 Correct 5 ms 5196 KB Output is correct
30 Correct 4 ms 5196 KB Output is correct
31 Correct 4 ms 5040 KB Output is correct
32 Correct 5 ms 5068 KB Output is correct
33 Correct 5 ms 5068 KB Output is correct
34 Correct 4 ms 5028 KB Output is correct
35 Correct 5 ms 5068 KB Output is correct
36 Correct 4 ms 5068 KB Output is correct
37 Correct 4 ms 5028 KB Output is correct
38 Correct 5 ms 5068 KB Output is correct
39 Correct 5 ms 5068 KB Output is correct
40 Correct 5 ms 5068 KB Output is correct
41 Correct 4 ms 5068 KB Output is correct
42 Correct 4 ms 5032 KB Output is correct
43 Correct 4 ms 5068 KB Output is correct
44 Correct 4 ms 5068 KB Output is correct
45 Correct 4 ms 5068 KB Output is correct
46 Correct 4 ms 5068 KB Output is correct
47 Correct 4 ms 5068 KB Output is correct
48 Correct 4 ms 5196 KB Output is correct
49 Correct 5 ms 5160 KB Output is correct
50 Correct 4 ms 5068 KB Output is correct
51 Correct 4 ms 5032 KB Output is correct
52 Correct 5 ms 5068 KB Output is correct
53 Correct 4 ms 5068 KB Output is correct
54 Correct 4 ms 5068 KB Output is correct
55 Correct 5 ms 5032 KB Output is correct
56 Correct 4 ms 5032 KB Output is correct
57 Correct 6 ms 5196 KB Output is correct
58 Correct 4 ms 5068 KB Output is correct
59 Correct 4 ms 5068 KB Output is correct
60 Correct 4 ms 5068 KB Output is correct
61 Correct 4 ms 5068 KB Output is correct
62 Correct 5 ms 5196 KB Output is correct
63 Correct 4 ms 5100 KB Output is correct
64 Correct 145 ms 15112 KB Output is correct
65 Correct 177 ms 15200 KB Output is correct
66 Correct 159 ms 15220 KB Output is correct
67 Correct 149 ms 15132 KB Output is correct
68 Correct 142 ms 15088 KB Output is correct
69 Correct 147 ms 15140 KB Output is correct
70 Correct 167 ms 15200 KB Output is correct
71 Correct 158 ms 15252 KB Output is correct
72 Correct 167 ms 15144 KB Output is correct
73 Correct 203 ms 27780 KB Output is correct
74 Correct 181 ms 27836 KB Output is correct
75 Correct 160 ms 15040 KB Output is correct
76 Correct 163 ms 15124 KB Output is correct
77 Correct 170 ms 14976 KB Output is correct
78 Correct 162 ms 14976 KB Output is correct
79 Correct 174 ms 15004 KB Output is correct
80 Correct 161 ms 15104 KB Output is correct
81 Correct 166 ms 15496 KB Output is correct
82 Correct 166 ms 15232 KB Output is correct
83 Correct 176 ms 20280 KB Output is correct
84 Correct 212 ms 22400 KB Output is correct
85 Correct 198 ms 22080 KB Output is correct
86 Correct 168 ms 16544 KB Output is correct
87 Correct 157 ms 15900 KB Output is correct
88 Correct 170 ms 16324 KB Output is correct
89 Correct 150 ms 16368 KB Output is correct
90 Correct 156 ms 16228 KB Output is correct
91 Correct 151 ms 16372 KB Output is correct
92 Correct 151 ms 16680 KB Output is correct
93 Correct 147 ms 19052 KB Output is correct
94 Correct 158 ms 20928 KB Output is correct
95 Correct 151 ms 19484 KB Output is correct
96 Correct 144 ms 17776 KB Output is correct
97 Correct 145 ms 16216 KB Output is correct
98 Correct 150 ms 15796 KB Output is correct
99 Correct 160 ms 15500 KB Output is correct
100 Correct 177 ms 18672 KB Output is correct
101 Correct 141 ms 16688 KB Output is correct
102 Correct 164 ms 15940 KB Output is correct
103 Correct 187 ms 15656 KB Output is correct
104 Correct 83 ms 16040 KB Output is correct
105 Correct 181 ms 24580 KB Output is correct
106 Correct 93 ms 15916 KB Output is correct
107 Correct 102 ms 15928 KB Output is correct
108 Correct 166 ms 28532 KB Output is correct
109 Correct 87 ms 16040 KB Output is correct
110 Correct 209 ms 28896 KB Output is correct
111 Correct 166 ms 14992 KB Output is correct