oj.uz

Submission #570513

# Submission time Handle Problem Language Result Execution time Memory
570513 2022-05-30T10:32:30 Z cheissmart The short shank; Redemption (BOI21_prison) C++14
100 / 100
 681 ms 320320 KB 
#include <bits/stdc++.h>
#define IO_OP std::ios::sync_with_stdio(0); std::cin.tie(0);
#define F first
#define S second
#define V vector
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define SZ(v) int((v).size())
#define ALL(v) (v).begin(), (v).end()

using namespace std;

typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;

string _reset = "\u001b[0m", _yellow = "\u001b[33m", _bold = "\u001b[1m";
void DBG() { cerr << "]" << _reset << endl; }
template<class H, class...T> void DBG(H h, T ...t) {
	cerr << to_string(h);
	if(sizeof ...(t)) cerr << ", ";
	DBG(t...);
}
#ifdef CHEISSMART
#define debug(...) cerr << _yellow << _bold << "Line(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define debug(...)
#endif

const int INF = 1e9 + 7, N = 2e6 + 7;

int a[N], p[N], down[N];
vi G[N];

void dfs(int u) {
	down[u] = 1;
	for(int v:G[u]) {
		dfs(v);
		down[u] = max(down[u], down[v] + 1);
	}
}

vi hebe[N];

signed main()
{
	IO_OP;

	int n, d, t;
	cin >> n >> d >> t;
	int ans = n;

	V<pi> stk, aux;
	for(int i = 0; i < n; i++) {
		cin >> a[i];
		if(a[i] <= t) {
			int r = i + t - a[i];
			while(SZ(stk) && stk.back().S <= r) stk.pop_back();
			stk.EB(i, r);
		} else {
			while(SZ(stk) && stk.back().S < i) stk.pop_back();
			if(SZ(stk)) {
				// [stk.back().F, i)
				aux.EB(i, (i + 1));
				aux.EB(stk.back().F, -(i + 1));
			} else {
				ans--;
			}
		}
	}
	
	sort(ALL(aux), greater<>());

	vi nodes;

	int lst = 0, tp = 1;
	for(auto[pos, op]:aux) {
		int u = abs(op);
		if(op > 0) {
			if(tp == 1) p[u] = lst;
			else p[u] = p[lst];
			nodes.PB(u);
		}
		lst = u, tp = op > 0;
	}

	for(int u:nodes) if(p[u]) {
		G[p[u]].PB(u);
	}
	for(int u:nodes) if(!p[u]) {
		dfs(u);
		hebe[down[u]].PB(u);
	}

	function<void(int)> go = [&] (int u) {
		int nxt = -1;
		for(int v:G[u]) if(down[v] + 1 == down[u]) nxt = v;
		for(int v:G[u]) if(v != nxt) hebe[down[v]].PB(v);
		if(nxt != -1)
			go(nxt);
	};

	for(int i = n; i >= 1 && d; i--) {
		while(d && SZ(hebe[i])) {
			int u = hebe[i].back();
			hebe[i].pop_back();
			go(u);
			assert(down[u] == i);
			ans -= i;
			d--;
		}
	}
	cout << ans << '\n';

}

Compilation message

prison.cpp: In function 'int main()':
prison.cpp:78:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   78 |  for(auto[pos, op]:aux) {
      |          ^

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 94156 KB Output is correct
2 Correct 49 ms 94160 KB Output is correct
3 Correct 49 ms 94176 KB Output is correct
4 Correct 51 ms 94248 KB Output is correct
5 Correct 47 ms 94180 KB Output is correct
6 Correct 46 ms 94240 KB Output is correct
7 Correct 49 ms 94164 KB Output is correct
8 Correct 49 ms 94276 KB Output is correct
9 Correct 47 ms 94224 KB Output is correct
10 Correct 46 ms 94252 KB Output is correct
11 Correct 50 ms 94216 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 94156 KB Output is correct
2 Correct 131 ms 109652 KB Output is correct
3 Correct 130 ms 110836 KB Output is correct
4 Correct 140 ms 116936 KB Output is correct
5 Correct 142 ms 116456 KB Output is correct
6 Correct 135 ms 114896 KB Output is correct
7 Correct 218 ms 168400 KB Output is correct
8 Correct 138 ms 117876 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 94156 KB Output is correct
2 Correct 49 ms 94160 KB Output is correct
3 Correct 49 ms 94176 KB Output is correct
4 Correct 51 ms 94248 KB Output is correct
5 Correct 47 ms 94180 KB Output is correct
6 Correct 46 ms 94240 KB Output is correct
7 Correct 49 ms 94164 KB Output is correct
8 Correct 49 ms 94276 KB Output is correct
9 Correct 47 ms 94224 KB Output is correct
10 Correct 46 ms 94252 KB Output is correct
11 Correct 50 ms 94216 KB Output is correct
12 Correct 46 ms 94208 KB Output is correct
13 Correct 49 ms 94248 KB Output is correct
14 Correct 58 ms 94240 KB Output is correct
15 Correct 51 ms 94212 KB Output is correct
16 Correct 47 ms 94272 KB Output is correct
17 Correct 51 ms 94232 KB Output is correct
18 Correct 49 ms 94284 KB Output is correct
19 Correct 48 ms 94244 KB Output is correct
20 Correct 46 ms 94156 KB Output is correct
21 Correct 46 ms 94220 KB Output is correct
22 Correct 48 ms 94268 KB Output is correct
23 Correct 49 ms 94344 KB Output is correct
24 Correct 50 ms 94308 KB Output is correct
25 Correct 48 ms 94412 KB Output is correct
26 Correct 47 ms 94360 KB Output is correct
27 Correct 49 ms 94384 KB Output is correct
28 Correct 53 ms 94336 KB Output is correct
29 Correct 49 ms 94412 KB Output is correct
30 Correct 48 ms 94412 KB Output is correct
31 Correct 49 ms 94380 KB Output is correct
32 Correct 47 ms 94300 KB Output is correct
33 Correct 48 ms 94288 KB Output is correct
34 Correct 51 ms 94408 KB Output is correct
35 Correct 47 ms 94404 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 94152 KB Output is correct
2 Correct 60 ms 97040 KB Output is correct
3 Correct 61 ms 97280 KB Output is correct
4 Correct 63 ms 100716 KB Output is correct
5 Correct 65 ms 102196 KB Output is correct
6 Correct 70 ms 102400 KB Output is correct
7 Correct 59 ms 97332 KB Output is correct
8 Correct 62 ms 97020 KB Output is correct
9 Correct 73 ms 105320 KB Output is correct
10 Correct 57 ms 96728 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 94156 KB Output is correct
2 Correct 49 ms 94160 KB Output is correct
3 Correct 49 ms 94176 KB Output is correct
4 Correct 51 ms 94248 KB Output is correct
5 Correct 47 ms 94180 KB Output is correct
6 Correct 46 ms 94240 KB Output is correct
7 Correct 49 ms 94164 KB Output is correct
8 Correct 49 ms 94276 KB Output is correct
9 Correct 47 ms 94224 KB Output is correct
10 Correct 46 ms 94252 KB Output is correct
11 Correct 50 ms 94216 KB Output is correct
12 Correct 46 ms 94208 KB Output is correct
13 Correct 49 ms 94248 KB Output is correct
14 Correct 58 ms 94240 KB Output is correct
15 Correct 51 ms 94212 KB Output is correct
16 Correct 47 ms 94272 KB Output is correct
17 Correct 51 ms 94232 KB Output is correct
18 Correct 49 ms 94284 KB Output is correct
19 Correct 48 ms 94244 KB Output is correct
20 Correct 46 ms 94156 KB Output is correct
21 Correct 46 ms 94220 KB Output is correct
22 Correct 48 ms 94268 KB Output is correct
23 Correct 49 ms 94344 KB Output is correct
24 Correct 50 ms 94308 KB Output is correct
25 Correct 48 ms 94412 KB Output is correct
26 Correct 47 ms 94360 KB Output is correct
27 Correct 49 ms 94384 KB Output is correct
28 Correct 53 ms 94336 KB Output is correct
29 Correct 49 ms 94412 KB Output is correct
30 Correct 48 ms 94412 KB Output is correct
31 Correct 49 ms 94380 KB Output is correct
32 Correct 47 ms 94300 KB Output is correct
33 Correct 48 ms 94288 KB Output is correct
34 Correct 51 ms 94408 KB Output is correct
35 Correct 47 ms 94404 KB Output is correct
36 Correct 46 ms 94152 KB Output is correct
37 Correct 60 ms 97040 KB Output is correct
38 Correct 61 ms 97280 KB Output is correct
39 Correct 63 ms 100716 KB Output is correct
40 Correct 65 ms 102196 KB Output is correct
41 Correct 70 ms 102400 KB Output is correct
42 Correct 59 ms 97332 KB Output is correct
43 Correct 62 ms 97020 KB Output is correct
44 Correct 73 ms 105320 KB Output is correct
45 Correct 57 ms 96728 KB Output is correct
46 Correct 47 ms 94224 KB Output is correct
47 Correct 47 ms 94272 KB Output is correct
48 Correct 48 ms 94216 KB Output is correct
49 Correct 47 ms 94284 KB Output is correct
50 Correct 46 ms 94180 KB Output is correct
51 Correct 49 ms 94284 KB Output is correct
52 Correct 46 ms 94260 KB Output is correct
53 Correct 48 ms 94232 KB Output is correct
54 Correct 46 ms 94248 KB Output is correct
55 Correct 47 ms 94156 KB Output is correct
56 Correct 47 ms 94276 KB Output is correct
57 Correct 46 ms 94408 KB Output is correct
58 Correct 47 ms 94296 KB Output is correct
59 Correct 49 ms 94452 KB Output is correct
60 Correct 48 ms 94332 KB Output is correct
61 Correct 49 ms 94412 KB Output is correct
62 Correct 48 ms 94324 KB Output is correct
63 Correct 49 ms 94432 KB Output is correct
64 Correct 48 ms 94408 KB Output is correct
65 Correct 48 ms 94324 KB Output is correct
66 Correct 48 ms 94388 KB Output is correct
67 Correct 48 ms 94308 KB Output is correct
68 Correct 48 ms 94408 KB Output is correct
69 Correct 47 ms 94464 KB Output is correct
70 Correct 47 ms 94240 KB Output is correct
71 Correct 69 ms 97696 KB Output is correct
72 Correct 63 ms 97488 KB Output is correct
73 Correct 65 ms 100792 KB Output is correct
74 Correct 68 ms 102184 KB Output is correct
75 Correct 70 ms 102456 KB Output is correct
76 Correct 59 ms 97364 KB Output is correct
77 Correct 59 ms 97064 KB Output is correct
78 Correct 74 ms 105284 KB Output is correct
79 Correct 61 ms 96848 KB Output is correct
80 Correct 64 ms 97348 KB Output is correct
81 Correct 67 ms 97700 KB Output is correct
82 Correct 62 ms 97308 KB Output is correct
83 Correct 65 ms 99224 KB Output is correct
84 Correct 64 ms 97480 KB Output is correct
85 Correct 69 ms 102684 KB Output is correct
86 Correct 64 ms 98604 KB Output is correct
87 Correct 62 ms 96688 KB Output is correct
88 Correct 66 ms 103448 KB Output is correct
89 Correct 70 ms 104824 KB Output is correct
90 Correct 67 ms 102216 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 94156 KB Output is correct
2 Correct 49 ms 94160 KB Output is correct
3 Correct 49 ms 94176 KB Output is correct
4 Correct 51 ms 94248 KB Output is correct
5 Correct 47 ms 94180 KB Output is correct
6 Correct 46 ms 94240 KB Output is correct
7 Correct 49 ms 94164 KB Output is correct
8 Correct 49 ms 94276 KB Output is correct
9 Correct 47 ms 94224 KB Output is correct
10 Correct 46 ms 94252 KB Output is correct
11 Correct 50 ms 94216 KB Output is correct
12 Correct 45 ms 94156 KB Output is correct
13 Correct 131 ms 109652 KB Output is correct
14 Correct 130 ms 110836 KB Output is correct
15 Correct 140 ms 116936 KB Output is correct
16 Correct 142 ms 116456 KB Output is correct
17 Correct 135 ms 114896 KB Output is correct
18 Correct 218 ms 168400 KB Output is correct
19 Correct 138 ms 117876 KB Output is correct
20 Correct 46 ms 94208 KB Output is correct
21 Correct 49 ms 94248 KB Output is correct
22 Correct 58 ms 94240 KB Output is correct
23 Correct 51 ms 94212 KB Output is correct
24 Correct 47 ms 94272 KB Output is correct
25 Correct 51 ms 94232 KB Output is correct
26 Correct 49 ms 94284 KB Output is correct
27 Correct 48 ms 94244 KB Output is correct
28 Correct 46 ms 94156 KB Output is correct
29 Correct 46 ms 94220 KB Output is correct
30 Correct 48 ms 94268 KB Output is correct
31 Correct 49 ms 94344 KB Output is correct
32 Correct 50 ms 94308 KB Output is correct
33 Correct 48 ms 94412 KB Output is correct
34 Correct 47 ms 94360 KB Output is correct
35 Correct 49 ms 94384 KB Output is correct
36 Correct 53 ms 94336 KB Output is correct
37 Correct 49 ms 94412 KB Output is correct
38 Correct 48 ms 94412 KB Output is correct
39 Correct 49 ms 94380 KB Output is correct
40 Correct 47 ms 94300 KB Output is correct
41 Correct 48 ms 94288 KB Output is correct
42 Correct 51 ms 94408 KB Output is correct
43 Correct 47 ms 94404 KB Output is correct
44 Correct 46 ms 94152 KB Output is correct
45 Correct 60 ms 97040 KB Output is correct
46 Correct 61 ms 97280 KB Output is correct
47 Correct 63 ms 100716 KB Output is correct
48 Correct 65 ms 102196 KB Output is correct
49 Correct 70 ms 102400 KB Output is correct
50 Correct 59 ms 97332 KB Output is correct
51 Correct 62 ms 97020 KB Output is correct
52 Correct 73 ms 105320 KB Output is correct
53 Correct 57 ms 96728 KB Output is correct
54 Correct 47 ms 94224 KB Output is correct
55 Correct 47 ms 94272 KB Output is correct
56 Correct 48 ms 94216 KB Output is correct
57 Correct 47 ms 94284 KB Output is correct
58 Correct 46 ms 94180 KB Output is correct
59 Correct 49 ms 94284 KB Output is correct
60 Correct 46 ms 94260 KB Output is correct
61 Correct 48 ms 94232 KB Output is correct
62 Correct 46 ms 94248 KB Output is correct
63 Correct 47 ms 94156 KB Output is correct
64 Correct 47 ms 94276 KB Output is correct
65 Correct 46 ms 94408 KB Output is correct
66 Correct 47 ms 94296 KB Output is correct
67 Correct 49 ms 94452 KB Output is correct
68 Correct 48 ms 94332 KB Output is correct
69 Correct 49 ms 94412 KB Output is correct
70 Correct 48 ms 94324 KB Output is correct
71 Correct 49 ms 94432 KB Output is correct
72 Correct 48 ms 94408 KB Output is correct
73 Correct 48 ms 94324 KB Output is correct
74 Correct 48 ms 94388 KB Output is correct
75 Correct 48 ms 94308 KB Output is correct
76 Correct 48 ms 94408 KB Output is correct
77 Correct 47 ms 94464 KB Output is correct
78 Correct 47 ms 94240 KB Output is correct
79 Correct 69 ms 97696 KB Output is correct
80 Correct 63 ms 97488 KB Output is correct
81 Correct 65 ms 100792 KB Output is correct
82 Correct 68 ms 102184 KB Output is correct
83 Correct 70 ms 102456 KB Output is correct
84 Correct 59 ms 97364 KB Output is correct
85 Correct 59 ms 97064 KB Output is correct
86 Correct 74 ms 105284 KB Output is correct
87 Correct 61 ms 96848 KB Output is correct
88 Correct 64 ms 97348 KB Output is correct
89 Correct 67 ms 97700 KB Output is correct
90 Correct 62 ms 97308 KB Output is correct
91 Correct 65 ms 99224 KB Output is correct
92 Correct 64 ms 97480 KB Output is correct
93 Correct 69 ms 102684 KB Output is correct
94 Correct 64 ms 98604 KB Output is correct
95 Correct 62 ms 96688 KB Output is correct
96 Correct 66 ms 103448 KB Output is correct
97 Correct 70 ms 104824 KB Output is correct
98 Correct 67 ms 102216 KB Output is correct
99 Correct 53 ms 94304 KB Output is correct
100 Correct 50 ms 94232 KB Output is correct
101 Correct 46 ms 94212 KB Output is correct
102 Correct 50 ms 94320 KB Output is correct
103 Correct 48 ms 94268 KB Output is correct
104 Correct 47 ms 94216 KB Output is correct
105 Correct 47 ms 94220 KB Output is correct
106 Correct 49 ms 94224 KB Output is correct
107 Correct 48 ms 94260 KB Output is correct
108 Correct 46 ms 94200 KB Output is correct
109 Correct 46 ms 94240 KB Output is correct
110 Correct 49 ms 94160 KB Output is correct
111 Correct 131 ms 114532 KB Output is correct
112 Correct 123 ms 110904 KB Output is correct
113 Correct 134 ms 116928 KB Output is correct
114 Correct 138 ms 116368 KB Output is correct
115 Correct 134 ms 114932 KB Output is correct
116 Correct 218 ms 168368 KB Output is correct
117 Correct 140 ms 117908 KB Output is correct
118 Correct 50 ms 94412 KB Output is correct
119 Correct 47 ms 94300 KB Output is correct
120 Correct 48 ms 94456 KB Output is correct
121 Correct 51 ms 94412 KB Output is correct
122 Correct 47 ms 94436 KB Output is correct
123 Correct 48 ms 94532 KB Output is correct
124 Correct 49 ms 94412 KB Output is correct
125 Correct 49 ms 94392 KB Output is correct
126 Correct 46 ms 94384 KB Output is correct
127 Correct 51 ms 94284 KB Output is correct
128 Correct 47 ms 94276 KB Output is correct
129 Correct 46 ms 94388 KB Output is correct
130 Correct 46 ms 94452 KB Output is correct
131 Correct 48 ms 94224 KB Output is correct
132 Correct 61 ms 97736 KB Output is correct
133 Correct 60 ms 97320 KB Output is correct
134 Correct 61 ms 100744 KB Output is correct
135 Correct 64 ms 102212 KB Output is correct
136 Correct 67 ms 102472 KB Output is correct
137 Correct 59 ms 97308 KB Output is correct
138 Correct 57 ms 96972 KB Output is correct
139 Correct 74 ms 105320 KB Output is correct
140 Correct 55 ms 96744 KB Output is correct
141 Correct 60 ms 97320 KB Output is correct
142 Correct 61 ms 97736 KB Output is correct
143 Correct 59 ms 97352 KB Output is correct
144 Correct 63 ms 99192 KB Output is correct
145 Correct 66 ms 97440 KB Output is correct
146 Correct 68 ms 102684 KB Output is correct
147 Correct 71 ms 98632 KB Output is correct
148 Correct 65 ms 96796 KB Output is correct
149 Correct 64 ms 103504 KB Output is correct
150 Correct 68 ms 104772 KB Output is correct
151 Correct 69 ms 102216 KB Output is correct
152 Correct 414 ms 175784 KB Output is correct
153 Correct 443 ms 180200 KB Output is correct
154 Correct 428 ms 171660 KB Output is correct
155 Correct 526 ms 222448 KB Output is correct
156 Correct 457 ms 183540 KB Output is correct
157 Correct 345 ms 152428 KB Output is correct
158 Correct 422 ms 192280 KB Output is correct
159 Correct 681 ms 320320 KB Output is correct
160 Correct 618 ms 300788 KB Output is correct
161 Correct 367 ms 155700 KB Output is correct
162 Correct 354 ms 160980 KB Output is correct