oj.uz

Submission #765294

# Submission time Handle Problem Language Result Execution time Memory
765294 2023-06-24T10:29:41 Z marvinthang Toy Train (IOI17_train) C++17
100 / 100
 679 ms 1552 KB 
/*************************************
*    author: marvinthang             *
*    created: 24.06.2023 17:13:38    *
*************************************/

#include "train.h"
#include <bits/stdc++.h>

using namespace std;

#define                  fi  first
#define                  se  second
#define                left  ___left
#define               right  ___right
#define                TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define             MASK(i)  (1LL << (i))
#define           BIT(x, i)  ((x) >> (i) & 1)
#define  __builtin_popcount  __builtin_popcountll
#define              ALL(v)  (v).begin(), (v).end()
#define           REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define          REPD(i, n)  for (int i = (n); i--; )
#define        FOR(i, a, b)  for (int i = (a), _b = (b); i < _b; ++i) 
#define       FORD(i, b, a)  for (int i = (b), _a = (a); --i >= _a; ) 
#define       FORE(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define      FORDE(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i) 
#define        scan_op(...)  istream & operator >> (istream &in, __VA_ARGS__ &u)
#define       print_op(...)  ostream & operator << (ostream &out, const __VA_ARGS__ &u)
#ifdef LOCAL
    #include "debug.h"
#else
    #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
    #define DB(...) 23
    #define db(...) 23
    #define debug(...) 23
#endif

template <class U, class V> scan_op(pair <U, V>)  { return in >> u.first >> u.second; }
template <class T> scan_op(vector <T>)  { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; }
template <class U, class V> print_op(pair <U, V>)  { return out << '(' << u.first << ", " << u.second << ')'; }
template <size_t i, class T> ostream & print_tuple_utils(ostream &out, const T &tup) { if constexpr(i == tuple_size<T>::value) return out << ")";  else return print_tuple_utils<i + 1, T>(out << (i ? ", " : "(") << get<i>(tup), tup); }
template <class ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(out, u); }
template <class Con, class = decltype(begin(declval<Con>()))> typename enable_if <!is_same<Con, string>::value, ostream&>::type operator << (ostream &out, const Con &con) { out << '{'; for (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; }

// end of template

vector <int> who_wins(vector <int> a, vector <int> r, vector <int> u, vector <int> v) {
	int n = a.size();
	int m = u.size();
	vector <vector <int>> radj(n);
	vector <int> deg(n);
	REP(i, m) {
		radj[v[i]].push_back(u[i]);
	}
	vector <bool> visited(n, false);
	vector <int> blocked(n, false);
	while (true) {
		copy(ALL(blocked), visited.begin());
		function <void(int, int)> dfs = [&] (int u, int t) {
			visited[u] = true;
			for (int v: radj[u]) if (!visited[v] && (a[v] == t || !--deg[v])) dfs(v, t);
		};
		fill(ALL(deg), 0);
		REP(i, m) if (!visited[u[i]] && !visited[v[i]]) ++deg[u[i]];
		REP(i, n) if (r[i] && !visited[i]) dfs(i, 1);
		vector <int> rem;
		REP(i, n) if (!visited[i]) rem.push_back(i);
		if (rem.empty()) break;
		copy(ALL(blocked), visited.begin());
		for (int u: rem) if (!visited[u]) dfs(u, 0);
		REP(i, n) if (visited[i]) blocked[i] = true;
	}
	REP(i, n) blocked[i] ^= 1;
	return blocked;
}

#ifdef LOCAL
#include "train.h"

#include <cstdio>
#include <vector>
#include <cassert>

using namespace std;

int main() {
	file("train");
	int n, m;
	assert(2 == scanf("%d %d", &n, &m));

	vector<int> a(n), r(n), u(m), v(m);

	for(int i = 0; i < n; i++)
		assert(1 == scanf("%d", &a[i]));

	for(int i = 0; i < n; i++)
		assert(1 == scanf("%d", &r[i]));

	for(int i = 0; i < m; i++)
		assert(2 == scanf("%d %d", &u[i], &v[i]));

	vector<int> res = who_wins(a, r, u, v);

	for(int i = 0; i < (int)res.size(); i++)
		printf(i ? " %d" : "%d", res[i]);
	printf("\n");

	return 0;
}
#endif

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 724 KB Output is correct
2 Correct 4 ms 804 KB Output is correct
3 Correct 4 ms 724 KB Output is correct
4 Correct 4 ms 724 KB Output is correct
5 Correct 3 ms 804 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 3 ms 724 KB Output is correct
8 Correct 3 ms 724 KB Output is correct
9 Correct 3 ms 724 KB Output is correct
10 Correct 3 ms 724 KB Output is correct
11 Correct 2 ms 724 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 296 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 1364 KB Output is correct
2 Correct 157 ms 1360 KB Output is correct
3 Correct 249 ms 1344 KB Output is correct
4 Correct 5 ms 1108 KB Output is correct
5 Correct 6 ms 1192 KB Output is correct
6 Correct 7 ms 1204 KB Output is correct
7 Correct 5 ms 1236 KB Output is correct
8 Correct 5 ms 1236 KB Output is correct
9 Correct 5 ms 1236 KB Output is correct
10 Correct 5 ms 1208 KB Output is correct
11 Correct 5 ms 1236 KB Output is correct
12 Correct 5 ms 1204 KB Output is correct
13 Correct 6 ms 1512 KB Output is correct
14 Correct 8 ms 1468 KB Output is correct
15 Correct 5 ms 1464 KB Output is correct
16 Correct 5 ms 1364 KB Output is correct
17 Correct 5 ms 1364 KB Output is correct
18 Correct 406 ms 1116 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 852 KB Output is correct
2 Correct 5 ms 980 KB Output is correct
3 Correct 5 ms 1108 KB Output is correct
4 Correct 7 ms 1108 KB Output is correct
5 Correct 5 ms 1060 KB Output is correct
6 Correct 5 ms 980 KB Output is correct
7 Correct 5 ms 996 KB Output is correct
8 Correct 5 ms 980 KB Output is correct
9 Correct 5 ms 980 KB Output is correct
10 Correct 5 ms 1000 KB Output is correct
11 Correct 5 ms 980 KB Output is correct
12 Correct 5 ms 1072 KB Output is correct
13 Correct 5 ms 1108 KB Output is correct
14 Correct 5 ms 980 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1108 KB Output is correct
2 Correct 7 ms 1108 KB Output is correct
3 Correct 5 ms 1108 KB Output is correct
4 Correct 5 ms 984 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 4 ms 700 KB Output is correct
8 Correct 4 ms 724 KB Output is correct
9 Correct 4 ms 724 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 3 ms 724 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 724 KB Output is correct
2 Correct 4 ms 804 KB Output is correct
3 Correct 4 ms 724 KB Output is correct
4 Correct 4 ms 724 KB Output is correct
5 Correct 3 ms 804 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 3 ms 724 KB Output is correct
8 Correct 3 ms 724 KB Output is correct
9 Correct 3 ms 724 KB Output is correct
10 Correct 3 ms 724 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 296 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 300 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 75 ms 1364 KB Output is correct
33 Correct 157 ms 1360 KB Output is correct
34 Correct 249 ms 1344 KB Output is correct
35 Correct 5 ms 1108 KB Output is correct
36 Correct 6 ms 1192 KB Output is correct
37 Correct 7 ms 1204 KB Output is correct
38 Correct 5 ms 1236 KB Output is correct
39 Correct 5 ms 1236 KB Output is correct
40 Correct 5 ms 1236 KB Output is correct
41 Correct 5 ms 1208 KB Output is correct
42 Correct 5 ms 1236 KB Output is correct
43 Correct 5 ms 1204 KB Output is correct
44 Correct 6 ms 1512 KB Output is correct
45 Correct 8 ms 1468 KB Output is correct
46 Correct 5 ms 1464 KB Output is correct
47 Correct 5 ms 1364 KB Output is correct
48 Correct 5 ms 1364 KB Output is correct
49 Correct 406 ms 1116 KB Output is correct
50 Correct 6 ms 852 KB Output is correct
51 Correct 5 ms 980 KB Output is correct
52 Correct 5 ms 1108 KB Output is correct
53 Correct 7 ms 1108 KB Output is correct
54 Correct 5 ms 1060 KB Output is correct
55 Correct 5 ms 980 KB Output is correct
56 Correct 5 ms 996 KB Output is correct
57 Correct 5 ms 980 KB Output is correct
58 Correct 5 ms 980 KB Output is correct
59 Correct 5 ms 1000 KB Output is correct
60 Correct 5 ms 980 KB Output is correct
61 Correct 5 ms 1072 KB Output is correct
62 Correct 5 ms 1108 KB Output is correct
63 Correct 5 ms 980 KB Output is correct
64 Correct 6 ms 1108 KB Output is correct
65 Correct 7 ms 1108 KB Output is correct
66 Correct 5 ms 1108 KB Output is correct
67 Correct 5 ms 984 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 3 ms 724 KB Output is correct
70 Correct 4 ms 700 KB Output is correct
71 Correct 4 ms 724 KB Output is correct
72 Correct 4 ms 724 KB Output is correct
73 Correct 1 ms 340 KB Output is correct
74 Correct 3 ms 724 KB Output is correct
75 Correct 134 ms 1364 KB Output is correct
76 Correct 170 ms 1492 KB Output is correct
77 Correct 239 ms 1548 KB Output is correct
78 Correct 238 ms 1468 KB Output is correct
79 Correct 246 ms 1552 KB Output is correct
80 Correct 5 ms 1212 KB Output is correct
81 Correct 6 ms 1204 KB Output is correct
82 Correct 6 ms 1204 KB Output is correct
83 Correct 6 ms 1364 KB Output is correct
84 Correct 7 ms 1236 KB Output is correct
85 Correct 6 ms 1236 KB Output is correct
86 Correct 7 ms 1236 KB Output is correct
87 Correct 5 ms 1276 KB Output is correct
88 Correct 9 ms 1236 KB Output is correct
89 Correct 6 ms 1236 KB Output is correct
90 Correct 11 ms 1264 KB Output is correct
91 Correct 11 ms 1280 KB Output is correct
92 Correct 22 ms 1308 KB Output is correct
93 Correct 20 ms 1248 KB Output is correct
94 Correct 21 ms 1236 KB Output is correct
95 Correct 23 ms 1240 KB Output is correct
96 Correct 66 ms 1108 KB Output is correct
97 Correct 427 ms 1260 KB Output is correct
98 Correct 622 ms 1236 KB Output is correct
99 Correct 679 ms 1220 KB Output is correct
100 Correct 418 ms 1108 KB Output is correct