oj.uz

답안 #532838

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
532838 2022-03-04T03:41:10 Z 8e7 Worst Reporter 4 (JOI21_worst_reporter4) C++17
100 / 100
 384 ms 58220 KB 
//Challenge: Accepted
#include <bits/stdc++.h>
using namespace std;
#ifdef zisk
void debug(){cout << endl;}
template<class T, class ... U> void debug(T a, U ... b){cout << a << " ", debug(b...);}
template<class T> void pary(T l, T r) {
	while (l != r) cout << *l << " ", l++;
	cout << endl;
}
#else
#define debug(...) 0
#define pary(...) 0
#endif
#define ll long long
#define maxn 200005
#define pii pair<ll, ll>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
const ll inf = 1LL<<60;
typedef map<int, ll> mp;
int to[maxn], deg[maxn];
bool cy[maxn], vis[maxn];
ll h[maxn], c[maxn];
vector<int> adj[maxn];

void comb(mp &a, mp &b) {
	if (a.size() < b.size()) swap(a, b);
	for (auto i:b) a[i.ff] += i.ss;
}
mp dfs(int n, int par) {
	mp ret;
	for (int v:adj[n]) {
		if (v != par && !cy[v]) {
			mp tmp = dfs(v, n);
			comb(ret, tmp);
		}
	}
	ret[1] += c[n];
	ret[h[n]] -= c[n];
	ret[h[n] + 1] += c[n];
	if (ret[h[n]] < 0 && !cy[n]) {
		//debug("rem", n, ret[h[n] + 1]);
		ll val = ret[h[n]];
		auto it = ret.lower_bound(h[n]);

		vector<int> rem;
		ret[h[n]] = 0;
		rem.push_back(h[n]);
		while (it != ret.begin() && val < 0) {
			it = prev(it);
			if (it->ss + val > 0) {
				it->ss += val;
				break;
			} else {
				val += it->ss;
				it->ss = 0;
				rem.push_back(it->ff);
			}
		}
		for (int i:rem) ret.erase(ret.find(i));
	}
	debug(n);
	for (auto i:ret) debug(i.ff, i.ss);
	return ret;
}
int main() {
	io
	int n;
	cin >> n;
	for (int i = 1;i <= n;i++) cy[i] = 1;
	for (int i = 1;i <= n;i++) {
		cin >> to[i] >> h[i] >> c[i];	
		deg[to[i]]++;
		adj[to[i]].push_back(i);
	}
	queue<int> que;
	for (int i = 1;i <= n;i++) {
		if (deg[i] == 0) que.push(i);
	}
	while (que.size()) {
		int cur = que.front();que.pop();
		cy[cur] = 0;
		if (--deg[to[cur]] == 0) que.push(to[cur]);
	}
	ll ans = 0;
	for (int i = 1;i <= n;i++) {
		if (cy[i] && !vis[i]) {
			//debug(i);
			int cur = i;
			mp v;
			ll best = inf, val = 0;
			do {
				vis[cur] = 1;
				mp tmp = dfs(cur, 0);
				comb(v, tmp);

				cur = to[cur];
			} while (!vis[cur]);

			if (!v[1]) best = 0;
			for (auto j:v) {
				val += j.ss;
				//debug(j.ff, val);
				best = min(best, val);
			}
			ans += best;	
		}
	}
	cout << ans << endl;
}

Compilation message

worst_reporter2.cpp: In function 'mp dfs(int, int)':
worst_reporter2.cpp:12:20: warning: statement has no effect [-Wunused-value]
   12 | #define debug(...) 0
      |                    ^
worst_reporter2.cpp:64:2: note: in expansion of macro 'debug'
   64 |  debug(n);
      |  ^~~~~
worst_reporter2.cpp:12:20: warning: statement has no effect [-Wunused-value]
   12 | #define debug(...) 0
      |                    ^
worst_reporter2.cpp:65:19: note: in expansion of macro 'debug'
   65 |  for (auto i:ret) debug(i.ff, i.ss);
      |                   ^~~~~
worst_reporter2.cpp:65:12: warning: variable 'i' set but not used [-Wunused-but-set-variable]
   65 |  for (auto i:ret) debug(i.ff, i.ss);
      |            ^

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4940 KB Output is correct
2 Correct 3 ms 5020 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 8 ms 5508 KB Output is correct
6 Correct 7 ms 5324 KB Output is correct
7 Correct 7 ms 5324 KB Output is correct
8 Correct 8 ms 5580 KB Output is correct
9 Correct 7 ms 5292 KB Output is correct
10 Correct 9 ms 5324 KB Output is correct
11 Correct 6 ms 5324 KB Output is correct
12 Correct 12 ms 6308 KB Output is correct
13 Correct 6 ms 6348 KB Output is correct
14 Correct 7 ms 5804 KB Output is correct
15 Correct 7 ms 5836 KB Output is correct
16 Correct 9 ms 5580 KB Output is correct
17 Correct 8 ms 5324 KB Output is correct
18 Correct 6 ms 5324 KB Output is correct
19 Correct 8 ms 5964 KB Output is correct
20 Correct 7 ms 5804 KB Output is correct
21 Correct 6 ms 5708 KB Output is correct
22 Correct 7 ms 5580 KB Output is correct
23 Correct 7 ms 5196 KB Output is correct
24 Correct 8 ms 5964 KB Output is correct
25 Correct 8 ms 5800 KB Output is correct
26 Correct 6 ms 6348 KB Output is correct
27 Correct 7 ms 5872 KB Output is correct
28 Correct 7 ms 6060 KB Output is correct
29 Correct 8 ms 6316 KB Output is correct
30 Correct 9 ms 6332 KB Output is correct
31 Correct 10 ms 6352 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4940 KB Output is correct
2 Correct 3 ms 5020 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 8 ms 5508 KB Output is correct
6 Correct 7 ms 5324 KB Output is correct
7 Correct 7 ms 5324 KB Output is correct
8 Correct 8 ms 5580 KB Output is correct
9 Correct 7 ms 5292 KB Output is correct
10 Correct 9 ms 5324 KB Output is correct
11 Correct 6 ms 5324 KB Output is correct
12 Correct 12 ms 6308 KB Output is correct
13 Correct 6 ms 6348 KB Output is correct
14 Correct 7 ms 5804 KB Output is correct
15 Correct 7 ms 5836 KB Output is correct
16 Correct 9 ms 5580 KB Output is correct
17 Correct 8 ms 5324 KB Output is correct
18 Correct 6 ms 5324 KB Output is correct
19 Correct 8 ms 5964 KB Output is correct
20 Correct 7 ms 5804 KB Output is correct
21 Correct 6 ms 5708 KB Output is correct
22 Correct 7 ms 5580 KB Output is correct
23 Correct 7 ms 5196 KB Output is correct
24 Correct 8 ms 5964 KB Output is correct
25 Correct 8 ms 5800 KB Output is correct
26 Correct 6 ms 6348 KB Output is correct
27 Correct 7 ms 5872 KB Output is correct
28 Correct 7 ms 6060 KB Output is correct
29 Correct 8 ms 6316 KB Output is correct
30 Correct 9 ms 6332 KB Output is correct
31 Correct 10 ms 6352 KB Output is correct
32 Correct 8 ms 5580 KB Output is correct
33 Correct 331 ms 25964 KB Output is correct
34 Correct 236 ms 14060 KB Output is correct
35 Correct 332 ms 23792 KB Output is correct
36 Correct 228 ms 14020 KB Output is correct
37 Correct 163 ms 14020 KB Output is correct
38 Correct 172 ms 14044 KB Output is correct
39 Correct 236 ms 54256 KB Output is correct
40 Correct 224 ms 54340 KB Output is correct
41 Correct 131 ms 54112 KB Output is correct
42 Correct 231 ms 35480 KB Output is correct
43 Correct 210 ms 35456 KB Output is correct
44 Correct 325 ms 25432 KB Output is correct
45 Correct 215 ms 13516 KB Output is correct
46 Correct 177 ms 13508 KB Output is correct
47 Correct 290 ms 38904 KB Output is correct
48 Correct 165 ms 32408 KB Output is correct
49 Correct 125 ms 32324 KB Output is correct
50 Correct 228 ms 22964 KB Output is correct
51 Correct 147 ms 11140 KB Output is correct
52 Correct 291 ms 39404 KB Output is correct
53 Correct 165 ms 32676 KB Output is correct
54 Correct 153 ms 54208 KB Output is correct
55 Correct 213 ms 41316 KB Output is correct
56 Correct 218 ms 52912 KB Output is correct
57 Correct 240 ms 58220 KB Output is correct
58 Correct 232 ms 54080 KB Output is correct
59 Correct 250 ms 54172 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4940 KB Output is correct
2 Correct 3 ms 5020 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 8 ms 5508 KB Output is correct
6 Correct 7 ms 5324 KB Output is correct
7 Correct 7 ms 5324 KB Output is correct
8 Correct 8 ms 5580 KB Output is correct
9 Correct 7 ms 5292 KB Output is correct
10 Correct 9 ms 5324 KB Output is correct
11 Correct 6 ms 5324 KB Output is correct
12 Correct 12 ms 6308 KB Output is correct
13 Correct 6 ms 6348 KB Output is correct
14 Correct 7 ms 5804 KB Output is correct
15 Correct 7 ms 5836 KB Output is correct
16 Correct 9 ms 5580 KB Output is correct
17 Correct 8 ms 5324 KB Output is correct
18 Correct 6 ms 5324 KB Output is correct
19 Correct 8 ms 5964 KB Output is correct
20 Correct 7 ms 5804 KB Output is correct
21 Correct 6 ms 5708 KB Output is correct
22 Correct 7 ms 5580 KB Output is correct
23 Correct 7 ms 5196 KB Output is correct
24 Correct 8 ms 5964 KB Output is correct
25 Correct 8 ms 5800 KB Output is correct
26 Correct 6 ms 6348 KB Output is correct
27 Correct 7 ms 5872 KB Output is correct
28 Correct 7 ms 6060 KB Output is correct
29 Correct 8 ms 6316 KB Output is correct
30 Correct 9 ms 6332 KB Output is correct
31 Correct 10 ms 6352 KB Output is correct
32 Correct 8 ms 5580 KB Output is correct
33 Correct 331 ms 25964 KB Output is correct
34 Correct 236 ms 14060 KB Output is correct
35 Correct 332 ms 23792 KB Output is correct
36 Correct 228 ms 14020 KB Output is correct
37 Correct 163 ms 14020 KB Output is correct
38 Correct 172 ms 14044 KB Output is correct
39 Correct 236 ms 54256 KB Output is correct
40 Correct 224 ms 54340 KB Output is correct
41 Correct 131 ms 54112 KB Output is correct
42 Correct 231 ms 35480 KB Output is correct
43 Correct 210 ms 35456 KB Output is correct
44 Correct 325 ms 25432 KB Output is correct
45 Correct 215 ms 13516 KB Output is correct
46 Correct 177 ms 13508 KB Output is correct
47 Correct 290 ms 38904 KB Output is correct
48 Correct 165 ms 32408 KB Output is correct
49 Correct 125 ms 32324 KB Output is correct
50 Correct 228 ms 22964 KB Output is correct
51 Correct 147 ms 11140 KB Output is correct
52 Correct 291 ms 39404 KB Output is correct
53 Correct 165 ms 32676 KB Output is correct
54 Correct 153 ms 54208 KB Output is correct
55 Correct 213 ms 41316 KB Output is correct
56 Correct 218 ms 52912 KB Output is correct
57 Correct 240 ms 58220 KB Output is correct
58 Correct 232 ms 54080 KB Output is correct
59 Correct 250 ms 54172 KB Output is correct
60 Correct 3 ms 4940 KB Output is correct
61 Correct 3 ms 4940 KB Output is correct
62 Correct 3 ms 5020 KB Output is correct
63 Correct 3 ms 5028 KB Output is correct
64 Correct 356 ms 25804 KB Output is correct
65 Correct 254 ms 20016 KB Output is correct
66 Correct 311 ms 27664 KB Output is correct
67 Correct 262 ms 20548 KB Output is correct
68 Correct 193 ms 19660 KB Output is correct
69 Correct 193 ms 19488 KB Output is correct
70 Correct 338 ms 38628 KB Output is correct
71 Correct 260 ms 21572 KB Output is correct
72 Correct 370 ms 46528 KB Output is correct
73 Correct 184 ms 21588 KB Output is correct
74 Correct 384 ms 37204 KB Output is correct
75 Correct 189 ms 18748 KB Output is correct
76 Correct 192 ms 18684 KB Output is correct
77 Correct 330 ms 37592 KB Output is correct
78 Correct 182 ms 19048 KB Output is correct
79 Correct 348 ms 37236 KB Output is correct
80 Correct 240 ms 20540 KB Output is correct
81 Correct 173 ms 20268 KB Output is correct
82 Correct 292 ms 46704 KB Output is correct
83 Correct 113 ms 21412 KB Output is correct
84 Correct 357 ms 53624 KB Output is correct
85 Correct 355 ms 48432 KB Output is correct
86 Correct 300 ms 41192 KB Output is correct
87 Correct 374 ms 53404 KB Output is correct
88 Correct 359 ms 51756 KB Output is correct