oj.uz

Submission #1064435

# Submission time Handle Problem Language Result Execution time Memory
1064435 2024-08-18T12:40:17 Z Shadow1 Infinite Race (EGOI24_infiniterace2) C++17
100 / 100
 28 ms 4964 KB 
// Programmer: Shadow1

#include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
using namespace std;

using ll = long long;
using ld = long double;
using ull = unsigned long long;
using str = string; // yay python!

#define i64 int64_t
#define show(x) cerr << (#x) << " = " << (x) << '\n';
#define output_vector(v) for(auto &x : v){cout << x << ' ';}cout << '\n';
#define output_pairvector(v) for(auto &x : v){cout << x.first << " " << x.second << '\n';}
#define vt vector
#define pq priority_queue
#define pb push_back
#define eb emplace_back
#define pii pair<int,int>
#define umap unordered_map
#define uset unordered_set
#define fir first
#define sec second
#define sz(x) ll(x.size())
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define int ll
#define discretize(x) sort(x.begin(), x.end()); x.erase(unique(x.begin(), x.end()), x.end());

// T: O(n^3)
// M : O(n + k log n) 

void solve() {
	int n, q;
	cin >> n >> q;
	vector<int> cnt(n), last(n);
	vector<bool> ahead(n);
	int lap = 1;
	while(q--) {
		int x; cin >> x;
		if(x > 0) {
			lap += (last[x] == lap && ahead[x]);
			last[x] = lap;
			ahead[x] = true;
		} else {
			ahead[abs(x)] = false;
		}
	}
	cout << lap - 1 << '\n';
}
	


signed main() {
	// freopen("output.txt", "w", stdout);
	// freopen("input.txt", "r", stdin);
	ios::sync_with_stdio(false);
	cin.tie(NULL); 
	int T = 1;
	// cin >> T;

	while(T--)
		solve();
	return 0;
}

/* CHECK :
1. COMPARATOR FUNCTION MUST RETURN FALSE WHEN ARGUMENTS ARE EQUAL!!!
2. Overflow! Typecase int64_t on operations if varaibles are int
3. Check array bounds!!!
4. Check array indexing!!!
5. Edge cases. (N==1)!!!
*/

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 10 ms 860 KB Output is correct
5 Correct 9 ms 944 KB Output is correct
6 Correct 9 ms 856 KB Output is correct
7 Correct 8 ms 828 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 7 ms 600 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 9 ms 832 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 9 ms 816 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 9 ms 820 KB Output is correct
17 Correct 1 ms 856 KB Output is correct
18 Correct 7 ms 604 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #2
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 7 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 12 ms 4700 KB Output is correct
6 Correct 2 ms 3416 KB Output is correct
7 Correct 8 ms 604 KB Output is correct
8 Correct 8 ms 604 KB Output is correct
9 Correct 7 ms 604 KB Output is correct
10 Correct 9 ms 956 KB Output is correct
11 Correct 9 ms 1116 KB Output is correct
12 Correct 9 ms 1400 KB Output is correct
13 Correct 22 ms 2136 KB Output is correct
14 Correct 28 ms 4628 KB Output is correct
15 Correct 18 ms 4752 KB Output is correct
16 Correct 17 ms 4700 KB Output is correct
17 Correct 0 ms 464 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 15 ms 4764 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 13 ms 4696 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 2 ms 3420 KB Output is correct
24 Correct 0 ms 352 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 460 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 10 ms 860 KB Output is correct
5 Correct 9 ms 944 KB Output is correct
6 Correct 9 ms 856 KB Output is correct
7 Correct 8 ms 828 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 7 ms 600 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 9 ms 832 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 9 ms 816 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 9 ms 820 KB Output is correct
17 Correct 1 ms 856 KB Output is correct
18 Correct 7 ms 604 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 7 ms 600 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 12 ms 4700 KB Output is correct
26 Correct 2 ms 3416 KB Output is correct
27 Correct 8 ms 604 KB Output is correct
28 Correct 8 ms 604 KB Output is correct
29 Correct 7 ms 604 KB Output is correct
30 Correct 9 ms 956 KB Output is correct
31 Correct 9 ms 1116 KB Output is correct
32 Correct 9 ms 1400 KB Output is correct
33 Correct 22 ms 2136 KB Output is correct
34 Correct 28 ms 4628 KB Output is correct
35 Correct 18 ms 4752 KB Output is correct
36 Correct 17 ms 4700 KB Output is correct
37 Correct 0 ms 464 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 15 ms 4764 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 13 ms 4696 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 2 ms 3420 KB Output is correct
44 Correct 0 ms 352 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 344 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 460 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 0 ms 344 KB Output is correct
67 Correct 0 ms 348 KB Output is correct
68 Correct 1 ms 348 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 9 ms 728 KB Output is correct
73 Correct 11 ms 860 KB Output is correct
74 Correct 8 ms 860 KB Output is correct
75 Correct 8 ms 860 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 7 ms 696 KB Output is correct
79 Correct 0 ms 344 KB Output is correct
80 Correct 8 ms 1112 KB Output is correct
81 Correct 0 ms 348 KB Output is correct
82 Correct 8 ms 856 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 9 ms 944 KB Output is correct
85 Correct 1 ms 344 KB Output is correct
86 Correct 13 ms 604 KB Output is correct
87 Correct 1 ms 348 KB Output is correct
88 Correct 22 ms 4700 KB Output is correct
89 Correct 2 ms 3420 KB Output is correct
90 Correct 7 ms 604 KB Output is correct
91 Correct 7 ms 604 KB Output is correct
92 Correct 13 ms 600 KB Output is correct
93 Correct 8 ms 860 KB Output is correct
94 Correct 9 ms 1088 KB Output is correct
95 Correct 10 ms 1396 KB Output is correct
96 Correct 20 ms 2136 KB Output is correct
97 Correct 16 ms 4700 KB Output is correct
98 Correct 17 ms 4700 KB Output is correct
99 Correct 18 ms 4696 KB Output is correct
100 Correct 0 ms 348 KB Output is correct
101 Correct 0 ms 348 KB Output is correct
102 Correct 14 ms 4696 KB Output is correct
103 Correct 0 ms 348 KB Output is correct
104 Correct 16 ms 4712 KB Output is correct
105 Correct 0 ms 348 KB Output is correct
106 Correct 1 ms 344 KB Output is correct
107 Correct 1 ms 344 KB Output is correct
108 Correct 1 ms 348 KB Output is correct
109 Correct 1 ms 348 KB Output is correct
110 Correct 0 ms 348 KB Output is correct
111 Correct 0 ms 348 KB Output is correct
112 Correct 20 ms 4956 KB Output is correct
113 Correct 13 ms 2392 KB Output is correct
114 Correct 13 ms 4956 KB Output is correct
115 Correct 12 ms 2236 KB Output is correct
116 Correct 17 ms 4700 KB Output is correct
117 Correct 1 ms 3420 KB Output is correct
118 Correct 14 ms 940 KB Output is correct
119 Correct 10 ms 948 KB Output is correct
120 Correct 9 ms 856 KB Output is correct
121 Correct 16 ms 948 KB Output is correct
122 Correct 12 ms 1116 KB Output is correct
123 Correct 11 ms 1372 KB Output is correct
124 Correct 12 ms 2276 KB Output is correct
125 Correct 14 ms 4964 KB Output is correct
126 Correct 14 ms 4956 KB Output is correct
127 Correct 14 ms 4956 KB Output is correct
128 Correct 14 ms 4956 KB Output is correct
129 Correct 14 ms 4956 KB Output is correct
130 Correct 0 ms 348 KB Output is correct
131 Correct 0 ms 344 KB Output is correct
132 Correct 0 ms 348 KB Output is correct
133 Correct 1 ms 3420 KB Output is correct
134 Correct 0 ms 348 KB Output is correct