제출 #1301515

#제출 시각아이디문제언어결과실행 시간메모리
1301515josiftepe Martian DNA (BOI18_dna)C++20
100 / 100
25 ms1996 KiB
#include <iostream> #include <algorithm> #include <vector> using namespace std; const int INF = 2e9; int main() { ios_base::sync_with_stdio(false); int n, k, r; cin >> n >> k >> r; vector<int> v(n); for(int i = 0; i < n; i++) { cin >> v[i]; } vector<int> req(k + 1, 0); for(int i = 0; i < r; i++) { int A, B; cin >> A >> B; req[A] = B; } int j = 0; int res = INF; for(int i = 0; i < n; i++) { while(r > 0 and j < n) { req[v[j]]--; if(req[v[j]] == 0) { r--; } j++; } if(r == 0) { res = min(res, j - i); } req[v[i]]++; if(req[v[i]] > 0) { r++; } } if(res == INF) { cout << "impossible" << endl; } else { cout << res << endl; } return 0; } /* 5 2 2 0 1 1 0 1 0 1 1 1 13 4 3 1 1 3 2 0 1 2 0 0 0 0 3 1 0 2 2 1 1 2 5 3 1 1 2 0 1 2 0 2 */
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