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Submission #537976

# Submission time Handle Problem Language Result Execution time Memory
537976 2022-03-16T01:30:27 Z thegrimbee Martian DNA (BOI18_dna) C++14
0 / 100
 2000 ms 4064 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
bool debug = false;
signed main(){
	cin.tie(0);
	ios_base::sync_with_stdio(0);
	int n, k, r, temp; cin >> n >> k >> r;
	vector<int> v(n);
	for (int i = 0 ;i < n; ++i){
		cin >> v[i];
	}
	vector<int> val(k);
	for (int i = 0;i < r; ++i){
		cin >> temp;
		cin >> val[temp];
	}
	int lo = 0, hi = n, mid = (lo + hi)/2;
	while (lo != mid){
		if(debug) cout << mid << '\n';
		temp = 0;
		vector<int> cur(n, 0);
		vector<bool> full(k,false);
		for (int i = 0; i < mid; ++i){
			cur[v[i]]++;
			if(cur[v[i]] == val[v[i]]){
				full[v[i]] = true;
				temp++;
			}
		}
		if(temp == r){
			hi = mid;
			mid = (lo + hi)/2;
			continue;
		}
		for (int i = mid; i < n; ++i){
			cur[v[i]]++;
			cur[v[i-mid]]--;
			if (v[i] != v[i-mid]){
				if(cur[v[i]] == val[v[i]]){
					full[v[i]] = true;
					temp++;
				}
				if (cur[v[i-mid]] == val[v[i-mid]]-1){
					full[v[i-mid]] = false;
					temp--;
				}	
			}
			if(temp == r){
				hi = mid;
				mid = (lo + hi)/2;
				continue;
			}
		}
		lo = mid+1;
		mid = (lo + hi)/2;
	}
	if (temp != r && mid == n)cout << "impossible";
	else cout << mid;

}

Subtask #1
0 / 16.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2083 ms 212 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 24.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2090 ms 340 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2072 ms 3412 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 4064 KB Output is correct
2 Execution timed out 2088 ms 3908 KB Time limit exceeded
3 Halted 0 ms 0 KB -