#include <bits/stdc++.h>
using namespace std;
vector<pair<int, int>> ranges;
int n;
bool compare(pair<int, int> p1, pair<int, int> p2){
return (p1.second < p2.second) || ((p1.second == p2.second && p1.first > p2.first));
}
void init(int N, int A[], int B[]) {
n = N;
for(int i = 0; i < N; i++) ranges.push_back({A[i], B[i]});
sort(ranges.begin(), ranges.end(), compare);
}
int can(int M, int K[]) {
vector<bool> assigned(n, false);
sort(K, K+M);
for(int i = 0; i < M; i++){
// cerco lo studente più a sinsistra in ranges che contiene K
int cnt = 0;
bool ok = false;
// naive O(N)
for(int j = 0; j < n; j++){
int start = ranges[j].first;
int end = ranges[j].second;
if(start <= K[i] && end >= K[i] && !assigned[j]) cnt++, assigned[j] = true;
if(cnt == K[i]){ok = true; break;}
}
// logn O(logN)
// dato un indice k, determinare il numero di ranges che contengono K[i] nel prefisso [0,k] (assegnabili)
if(!ok) return 0;
}
return 1;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
296 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
300 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
300 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 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 |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
300 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
296 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
20 ms |
3404 KB |
Output is correct |
2 |
Correct |
22 ms |
3324 KB |
Output is correct |
3 |
Correct |
19 ms |
3348 KB |
Output is correct |
4 |
Correct |
21 ms |
3596 KB |
Output is correct |
5 |
Correct |
22 ms |
3020 KB |
Output is correct |
6 |
Correct |
18 ms |
2960 KB |
Output is correct |
7 |
Correct |
14 ms |
2996 KB |
Output is correct |
8 |
Correct |
16 ms |
2992 KB |
Output is correct |
9 |
Correct |
1727 ms |
3020 KB |
Output is correct |
10 |
Correct |
667 ms |
2732 KB |
Output is correct |
11 |
Correct |
76 ms |
2764 KB |
Output is correct |
12 |
Correct |
16 ms |
2892 KB |
Output is correct |
13 |
Correct |
17 ms |
3148 KB |
Output is correct |
14 |
Correct |
21 ms |
3136 KB |
Output is correct |
15 |
Correct |
20 ms |
3280 KB |
Output is correct |
16 |
Correct |
19 ms |
3276 KB |
Output is correct |
17 |
Correct |
15 ms |
3308 KB |
Output is correct |
18 |
Correct |
15 ms |
3296 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
47 ms |
3780 KB |
Output is correct |
2 |
Correct |
57 ms |
3772 KB |
Output is correct |
3 |
Execution timed out |
4042 ms |
4184 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
296 ms |
16296 KB |
Output is correct |
2 |
Correct |
301 ms |
16292 KB |
Output is correct |
3 |
Execution timed out |
4006 ms |
15308 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |