Submission #952987

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
952987	2024-03-25T08:59:39 Z	Isam	Swimming competition (LMIO18_plaukimo_varzybos)	C++17	100 / 100	353 ms	13140 KB

plaukimo_varzybos

#include<bits/stdc++.h>
using namespace std;

int n, l, r, t[1000001];

bool check(int dif){
	deque<int> q = {0};
	int i(l);
	while(i <= n && !q.empty()){
		if(i - q.front() >= l){
			if(i - q.front() <= r && t[i] - t[q.front()+1] <= dif){
				q.push_back(i), ++i;
			}else{
				q.pop_front();
			}
		}else{
			++i;
		}
	}
	return (!q.empty() && q.back() == n);
}

signed main(){
	ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin >> n >> l >> r;
	for(register int i = 1; i <= n; ++i) cin >> t[i];
	sort(t+1,t+n+1);
	int lo(0), hi(t[n]), mid, ans;
	while(lo <= hi){
		mid = lo + ((hi - lo) >> 1);
		if(check(mid)){
			hi = mid - 1, ans = mid;
		}else{
			lo = mid + 1;
		}
	}
	cout << ans << '\n';
}

Compilation message

plaukimo_varzybos.cpp: In function 'int main()':
plaukimo_varzybos.cpp:26:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   26 |  for(register int i = 1; i <= n; ++i) cin >> t[i];
      |                   ^
plaukimo_varzybos.cpp:37:17: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
   37 |  cout << ans << '\n';
      |                 ^~~~

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	10 ms	3192 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	169 ms	11268 KB	Output is correct
5	Correct	152 ms	11328 KB	Output is correct
6	Correct	16 ms	3164 KB	Output is correct
7	Correct	138 ms	9812 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	0 ms	436 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	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct

Subtask #3

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	10 ms	3192 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	169 ms	11268 KB	Output is correct
5	Correct	152 ms	11328 KB	Output is correct
6	Correct	16 ms	3164 KB	Output is correct
7	Correct	138 ms	9812 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 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	1 ms	344 KB	Output is correct
15	Correct	0 ms	436 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	1 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	6 ms	604 KB	Output is correct
22	Correct	4 ms	2652 KB	Output is correct
23	Correct	9 ms	2908 KB	Output is correct
24	Correct	15 ms	3236 KB	Output is correct
25	Correct	64 ms	5220 KB	Output is correct
26	Correct	156 ms	8784 KB	Output is correct
27	Correct	20 ms	3160 KB	Output is correct
28	Correct	10 ms	2908 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	275 ms	11076 KB	Output is correct
31	Correct	269 ms	10836 KB	Output is correct

Subtask #4

40.0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	10 ms	3192 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	169 ms	11268 KB	Output is correct
5	Correct	152 ms	11328 KB	Output is correct
6	Correct	16 ms	3164 KB	Output is correct
7	Correct	138 ms	9812 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	6 ms	604 KB	Output is correct
12	Correct	4 ms	2652 KB	Output is correct
13	Correct	9 ms	2908 KB	Output is correct
14	Correct	15 ms	3236 KB	Output is correct
15	Correct	64 ms	5220 KB	Output is correct
16	Correct	156 ms	8784 KB	Output is correct
17	Correct	20 ms	3160 KB	Output is correct
18	Correct	10 ms	2908 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	275 ms	11076 KB	Output is correct
21	Correct	269 ms	10836 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	1 ms	344 KB	Output is correct
26	Correct	0 ms	436 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	0 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	0 ms	348 KB	Output is correct
32	Correct	6 ms	2904 KB	Output is correct
33	Correct	99 ms	6240 KB	Output is correct
34	Correct	83 ms	5972 KB	Output is correct
35	Correct	353 ms	13140 KB	Output is correct
36	Correct	173 ms	13140 KB	Output is correct
37	Correct	179 ms	12612 KB	Output is correct
38	Correct	111 ms	6740 KB	Output is correct