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답안 #378897

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
378897 2021-03-17T07:14:32 Z Kevin_Zhang_TW Nice sequence (IZhO18_sequence) C++17
100 / 100
 1571 ms 34240 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; }
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 300010;

bool valid(int n, int m, int len, bool output = false) {

	vector<int> indeg(len + 1);
	for (int i = 1;i <= len;++i) {
		if (i >= n) {
			++indeg[i];
		}
		if (i >= m) {
			++indeg[i - m];
		}
	}
	vector<int> q;
	for (int i = 0;i <= len;++i) if (indeg[i] == 0)
		q.pb(i);

	if (q.empty()) return false;

	for (int i = 0;i < q.size();++i) {
		int x = q[i];

		if (x >= m) {
			if (--indeg[x - m] == 0)
				q.pb(x - m);
		}
		if (x + n <= len) {
			if (--indeg[x + n] == 0)
				q.pb(x + n);
		}
	}

	if (q.size() != len + 1) return false;

	if (output) {
		cout << len << '\n';
		vector<int> res(len + 1);

		int lst = len + 10;

		for (int i = 0;i <= len;++i) {
			int x = q[i];
			res[x] = --lst;
			if (x == 0) res[x] = 0;
			lst = res[x];
		}

		for (int i = 1;i <= len;++i)
			cout << res[i] - res[i-1] << " \n"[i==len];
	}
	return true;
};

void solve() {
	int n, m;
	cin >> n >> m;

	int U = 4;
	while (valid(n, m, U<<1)) U <<= 1;
	int res = 0;

	while (U) {
		if (valid(n, m, res | U))
			res |= U;
		U >>= 1;
	}
	valid(n, m, res, true);
}

int32_t main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	int T;
	cin >> T;
	while (T--)
		solve();
}

Compilation message

sequence.cpp: In function 'bool valid(int, int, int, bool)':
sequence.cpp:37:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |  for (int i = 0;i < q.size();++i) {
      |                 ~~^~~~~~~~~~
sequence.cpp:50:15: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   50 |  if (q.size() != len + 1) return false;
      |      ~~~~~~~~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Ok
2 Correct 1 ms 364 KB Ok
3 Correct 1 ms 364 KB Ok
4 Correct 1 ms 512 KB Ok
5 Correct 1 ms 364 KB Ok
6 Correct 1 ms 364 KB Ok
7 Correct 1 ms 364 KB Ok
8 Correct 1 ms 364 KB Ok
9 Correct 1 ms 364 KB Ok
10 Correct 1 ms 364 KB Ok
11 Correct 1 ms 364 KB Ok
12 Correct 1 ms 364 KB Ok

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Ok
2 Correct 1 ms 364 KB Ok
3 Correct 1 ms 364 KB Ok
4 Correct 1 ms 364 KB Ok
5 Correct 1 ms 364 KB Ok
6 Correct 5 ms 492 KB Ok
7 Correct 26 ms 860 KB Ok
8 Correct 13 ms 620 KB Ok
9 Correct 29 ms 1012 KB Ok
10 Correct 18 ms 620 KB Ok

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Ok
2 Correct 1 ms 364 KB Ok
3 Correct 1 ms 364 KB Ok
4 Correct 1 ms 364 KB Ok
5 Correct 1 ms 364 KB Ok
6 Correct 1 ms 364 KB Ok
7 Correct 1 ms 364 KB Ok
8 Correct 1 ms 364 KB Ok
9 Correct 1 ms 364 KB Ok
10 Correct 1 ms 364 KB Ok
11 Correct 1 ms 384 KB Ok

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Ok
2 Correct 1 ms 364 KB Ok
3 Correct 1 ms 364 KB Ok
4 Correct 1 ms 364 KB Ok
5 Correct 1 ms 364 KB Ok
6 Correct 258 ms 4984 KB Ok
7 Correct 246 ms 3964 KB Ok
8 Correct 471 ms 7124 KB Ok
9 Correct 349 ms 7956 KB Ok
10 Correct 197 ms 3088 KB Ok
11 Correct 360 ms 6888 KB Ok

Subtask #5
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Ok
2 Correct 1 ms 364 KB Ok
3 Correct 1 ms 364 KB Ok
4 Correct 1 ms 512 KB Ok
5 Correct 1 ms 364 KB Ok
6 Correct 1 ms 364 KB Ok
7 Correct 1 ms 364 KB Ok
8 Correct 1 ms 364 KB Ok
9 Correct 1 ms 364 KB Ok
10 Correct 1 ms 364 KB Ok
11 Correct 1 ms 364 KB Ok
12 Correct 1 ms 364 KB Ok
13 Correct 1 ms 364 KB Ok
14 Correct 1 ms 364 KB Ok
15 Correct 1 ms 364 KB Ok
16 Correct 1 ms 364 KB Ok
17 Correct 1 ms 364 KB Ok
18 Correct 1 ms 364 KB Ok
19 Correct 1 ms 364 KB Ok
20 Correct 1 ms 364 KB Ok
21 Correct 1 ms 364 KB Ok
22 Correct 1 ms 364 KB Ok
23 Correct 1 ms 384 KB Ok
24 Correct 5 ms 492 KB Ok
25 Correct 5 ms 492 KB Ok
26 Correct 6 ms 492 KB Ok
27 Correct 6 ms 492 KB Ok
28 Correct 5 ms 364 KB Ok
29 Correct 4 ms 364 KB Ok
30 Correct 4 ms 364 KB Ok
31 Correct 5 ms 492 KB Ok
32 Correct 5 ms 492 KB Ok
33 Correct 5 ms 364 KB Ok
34 Correct 9 ms 492 KB Ok
35 Correct 8 ms 620 KB Ok
36 Correct 9 ms 492 KB Ok
37 Correct 10 ms 492 KB Ok
38 Correct 10 ms 492 KB Ok
39 Correct 9 ms 492 KB Ok
40 Correct 9 ms 492 KB Ok
41 Correct 8 ms 492 KB Ok
42 Correct 9 ms 492 KB Ok
43 Correct 9 ms 492 KB Ok

Subtask #6
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Ok
2 Correct 1 ms 364 KB Ok
3 Correct 1 ms 364 KB Ok
4 Correct 1 ms 512 KB Ok
5 Correct 1 ms 364 KB Ok
6 Correct 1 ms 364 KB Ok
7 Correct 1 ms 364 KB Ok
8 Correct 1 ms 364 KB Ok
9 Correct 1 ms 364 KB Ok
10 Correct 1 ms 364 KB Ok
11 Correct 1 ms 364 KB Ok
12 Correct 1 ms 364 KB Ok
13 Correct 1 ms 364 KB Ok
14 Correct 1 ms 364 KB Ok
15 Correct 1 ms 364 KB Ok
16 Correct 1 ms 364 KB Ok
17 Correct 1 ms 364 KB Ok
18 Correct 5 ms 492 KB Ok
19 Correct 26 ms 860 KB Ok
20 Correct 13 ms 620 KB Ok
21 Correct 29 ms 1012 KB Ok
22 Correct 18 ms 620 KB Ok
23 Correct 1 ms 364 KB Ok
24 Correct 1 ms 364 KB Ok
25 Correct 1 ms 364 KB Ok
26 Correct 1 ms 364 KB Ok
27 Correct 1 ms 364 KB Ok
28 Correct 1 ms 364 KB Ok
29 Correct 1 ms 364 KB Ok
30 Correct 1 ms 364 KB Ok
31 Correct 1 ms 364 KB Ok
32 Correct 1 ms 364 KB Ok
33 Correct 1 ms 384 KB Ok
34 Correct 5 ms 492 KB Ok
35 Correct 5 ms 492 KB Ok
36 Correct 6 ms 492 KB Ok
37 Correct 6 ms 492 KB Ok
38 Correct 5 ms 364 KB Ok
39 Correct 4 ms 364 KB Ok
40 Correct 4 ms 364 KB Ok
41 Correct 5 ms 492 KB Ok
42 Correct 5 ms 492 KB Ok
43 Correct 5 ms 364 KB Ok
44 Correct 9 ms 492 KB Ok
45 Correct 8 ms 620 KB Ok
46 Correct 9 ms 492 KB Ok
47 Correct 10 ms 492 KB Ok
48 Correct 10 ms 492 KB Ok
49 Correct 9 ms 492 KB Ok
50 Correct 9 ms 492 KB Ok
51 Correct 8 ms 492 KB Ok
52 Correct 9 ms 492 KB Ok
53 Correct 9 ms 492 KB Ok
54 Correct 236 ms 3568 KB Ok
55 Correct 298 ms 3816 KB Ok
56 Correct 292 ms 3616 KB Ok
57 Correct 206 ms 3060 KB Ok
58 Correct 257 ms 3540 KB Ok
59 Correct 250 ms 3336 KB Ok
60 Correct 229 ms 3212 KB Ok
61 Correct 208 ms 3240 KB Ok
62 Correct 313 ms 3692 KB Ok
63 Correct 230 ms 3124 KB Ok
64 Correct 308 ms 3836 KB Ok
65 Correct 285 ms 3824 KB Ok
66 Correct 254 ms 3496 KB Ok
67 Correct 209 ms 3376 KB Ok
68 Correct 250 ms 3252 KB Ok
69 Correct 346 ms 7288 KB Ok
70 Correct 308 ms 8404 KB Ok
71 Correct 326 ms 6780 KB Ok
72 Correct 362 ms 7488 KB Ok
73 Correct 327 ms 7320 KB Ok
74 Correct 321 ms 6384 KB Ok
75 Correct 334 ms 6456 KB Ok
76 Correct 318 ms 7976 KB Ok
77 Correct 331 ms 6072 KB Ok
78 Correct 315 ms 7720 KB Ok
79 Correct 333 ms 7356 KB Ok
80 Correct 323 ms 7200 KB Ok
81 Correct 328 ms 7680 KB Ok
82 Correct 329 ms 7488 KB Ok
83 Correct 343 ms 6412 KB Ok

Subtask #7
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Ok
2 Correct 1 ms 364 KB Ok
3 Correct 1 ms 364 KB Ok
4 Correct 1 ms 512 KB Ok
5 Correct 1 ms 364 KB Ok
6 Correct 1 ms 364 KB Ok
7 Correct 1 ms 364 KB Ok
8 Correct 1 ms 364 KB Ok
9 Correct 1 ms 364 KB Ok
10 Correct 1 ms 364 KB Ok
11 Correct 1 ms 364 KB Ok
12 Correct 1 ms 364 KB Ok
13 Correct 1 ms 364 KB Ok
14 Correct 1 ms 364 KB Ok
15 Correct 1 ms 364 KB Ok
16 Correct 1 ms 364 KB Ok
17 Correct 1 ms 364 KB Ok
18 Correct 5 ms 492 KB Ok
19 Correct 26 ms 860 KB Ok
20 Correct 13 ms 620 KB Ok
21 Correct 29 ms 1012 KB Ok
22 Correct 18 ms 620 KB Ok
23 Correct 1 ms 364 KB Ok
24 Correct 1 ms 364 KB Ok
25 Correct 1 ms 364 KB Ok
26 Correct 1 ms 364 KB Ok
27 Correct 1 ms 364 KB Ok
28 Correct 1 ms 364 KB Ok
29 Correct 1 ms 364 KB Ok
30 Correct 1 ms 364 KB Ok
31 Correct 1 ms 364 KB Ok
32 Correct 1 ms 364 KB Ok
33 Correct 1 ms 384 KB Ok
34 Correct 1 ms 512 KB Ok
35 Correct 1 ms 364 KB Ok
36 Correct 1 ms 364 KB Ok
37 Correct 1 ms 364 KB Ok
38 Correct 1 ms 364 KB Ok
39 Correct 258 ms 4984 KB Ok
40 Correct 246 ms 3964 KB Ok
41 Correct 471 ms 7124 KB Ok
42 Correct 349 ms 7956 KB Ok
43 Correct 197 ms 3088 KB Ok
44 Correct 360 ms 6888 KB Ok
45 Correct 5 ms 492 KB Ok
46 Correct 5 ms 492 KB Ok
47 Correct 6 ms 492 KB Ok
48 Correct 6 ms 492 KB Ok
49 Correct 5 ms 364 KB Ok
50 Correct 4 ms 364 KB Ok
51 Correct 4 ms 364 KB Ok
52 Correct 5 ms 492 KB Ok
53 Correct 5 ms 492 KB Ok
54 Correct 5 ms 364 KB Ok
55 Correct 9 ms 492 KB Ok
56 Correct 8 ms 620 KB Ok
57 Correct 9 ms 492 KB Ok
58 Correct 10 ms 492 KB Ok
59 Correct 10 ms 492 KB Ok
60 Correct 9 ms 492 KB Ok
61 Correct 9 ms 492 KB Ok
62 Correct 8 ms 492 KB Ok
63 Correct 9 ms 492 KB Ok
64 Correct 9 ms 492 KB Ok
65 Correct 236 ms 3568 KB Ok
66 Correct 298 ms 3816 KB Ok
67 Correct 292 ms 3616 KB Ok
68 Correct 206 ms 3060 KB Ok
69 Correct 257 ms 3540 KB Ok
70 Correct 250 ms 3336 KB Ok
71 Correct 229 ms 3212 KB Ok
72 Correct 208 ms 3240 KB Ok
73 Correct 313 ms 3692 KB Ok
74 Correct 230 ms 3124 KB Ok
75 Correct 308 ms 3836 KB Ok
76 Correct 285 ms 3824 KB Ok
77 Correct 254 ms 3496 KB Ok
78 Correct 209 ms 3376 KB Ok
79 Correct 250 ms 3252 KB Ok
80 Correct 346 ms 7288 KB Ok
81 Correct 308 ms 8404 KB Ok
82 Correct 326 ms 6780 KB Ok
83 Correct 362 ms 7488 KB Ok
84 Correct 327 ms 7320 KB Ok
85 Correct 321 ms 6384 KB Ok
86 Correct 334 ms 6456 KB Ok
87 Correct 318 ms 7976 KB Ok
88 Correct 331 ms 6072 KB Ok
89 Correct 315 ms 7720 KB Ok
90 Correct 333 ms 7356 KB Ok
91 Correct 323 ms 7200 KB Ok
92 Correct 328 ms 7680 KB Ok
93 Correct 329 ms 7488 KB Ok
94 Correct 343 ms 6412 KB Ok
95 Correct 676 ms 8224 KB Ok
96 Correct 934 ms 12084 KB Ok
97 Correct 927 ms 10768 KB Ok
98 Correct 670 ms 8680 KB Ok
99 Correct 804 ms 10220 KB Ok
100 Correct 792 ms 10000 KB Ok
101 Correct 911 ms 11396 KB Ok
102 Correct 863 ms 11168 KB Ok
103 Correct 805 ms 9780 KB Ok
104 Correct 1044 ms 11224 KB Ok
105 Correct 1002 ms 12452 KB Ok
106 Correct 732 ms 9556 KB Ok
107 Correct 903 ms 11288 KB Ok
108 Correct 982 ms 12284 KB Ok
109 Correct 799 ms 10564 KB Ok
110 Correct 1415 ms 25680 KB Ok
111 Correct 1439 ms 33472 KB Ok
112 Correct 1522 ms 27516 KB Ok
113 Correct 1447 ms 30460 KB Ok
114 Correct 1454 ms 31732 KB Ok
115 Correct 1421 ms 31208 KB Ok
116 Correct 1433 ms 31184 KB Ok
117 Correct 1404 ms 31640 KB Ok
118 Correct 1519 ms 28168 KB Ok
119 Correct 1471 ms 32160 KB Ok
120 Correct 1481 ms 28252 KB Ok
121 Correct 1516 ms 27216 KB Ok
122 Correct 1571 ms 29948 KB Ok
123 Correct 1483 ms 34240 KB Ok
124 Correct 1453 ms 24924 KB Ok
125 Correct 1515 ms 15816 KB Ok