Submission #577059

# Submission time Handle Problem Language Result Execution time Memory
577059 2022-06-14T00:53:26 Z Pietra Martian DNA (BOI18_dna) C++14
100 / 100
54 ms 4480 KB
#include<bits/stdc++.h>
using namespace std ; 

const int maxn = 2e5 + 5 ; 

int n, k, r, freq[maxn], v[maxn], qtd[maxn] ; 

bool check(int x){

	// cout << x << ":\n" ;

	for(int i = 0 ; i <= k ; i++) freq[i] = 0 ; 

	int ct = 0 ; 

	for(int i = 1 ; i <= x ; i++){
		freq[v[i]]++ ; 
		if(freq[v[i]] == qtd[v[i]]) ct++ ;   
	}

	if(r == ct) return 1 ; 

	for(int i = x + 1 ; i <= n ; i++){
		if(freq[v[i-x]] == qtd[v[i-x]]) ct-- ; 
		freq[v[i-x]]-- ; freq[v[i]]++ ;  
		if(freq[v[i]] == qtd[v[i]]) ct++ ; 
		if(r == ct) return 1 ; 
	}

	if(r == ct) return 1 ; 

	return 0 ; 

}

int main(){

	ios_base::sync_with_stdio(false) ; cin.tie(NULL) ; 

	cin >> n >> k >> r ; 

	for(int i = 1 ; i <= n ; i++) cin >> v[i] ; 

	for(int i = 1 ; i <= r ; i++){
		int v, f ; cin >> v >> f ; 
		qtd[v] = f ; 
	}

	int ini = 1, fim = n, mid, best = -1 ; 

	while(ini <= fim){
		mid = (ini + fim)>>1 ; 
		if(check(mid)) best = mid, fim = mid - 1 ; 
		else ini = mid + 1 ;
	} 

	if(best == -1) cout << "impossible\n" ; 
	else cout << best << "\n" ; 

}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 24 ms 1108 KB Output is correct
2 Correct 23 ms 1492 KB Output is correct
3 Correct 15 ms 1492 KB Output is correct
4 Correct 20 ms 1456 KB Output is correct
5 Correct 31 ms 2656 KB Output is correct
6 Correct 20 ms 1492 KB Output is correct
7 Correct 22 ms 1668 KB Output is correct
8 Correct 35 ms 3128 KB Output is correct
9 Correct 25 ms 2108 KB Output is correct
10 Correct 26 ms 1492 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 324 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 37 ms 1716 KB Output is correct
2 Correct 40 ms 1492 KB Output is correct
3 Correct 48 ms 2784 KB Output is correct
4 Correct 10 ms 1428 KB Output is correct
5 Correct 41 ms 4036 KB Output is correct
6 Correct 54 ms 4480 KB Output is correct
7 Correct 28 ms 2072 KB Output is correct
8 Correct 39 ms 2308 KB Output is correct
9 Correct 20 ms 1456 KB Output is correct
10 Correct 23 ms 1420 KB Output is correct
11 Correct 14 ms 1492 KB Output is correct
12 Correct 21 ms 1412 KB Output is correct
13 Correct 31 ms 2612 KB Output is correct
14 Correct 19 ms 1512 KB Output is correct
15 Correct 21 ms 1620 KB Output is correct
16 Correct 36 ms 3228 KB Output is correct
17 Correct 26 ms 1996 KB Output is correct
18 Correct 25 ms 1492 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 324 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct