제출 #723691

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
723691	2023-04-14 07:36:32	_martynas	Martian DNA (BOI18_dna)	C++11	100 / 100	140 ms	5252 KiB

dna

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#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define PB push_back
using pii = pair<int, int>;
const int MXN = 2e5+5;
int n, k, r;
int A[MXN], req[MXN], tot[MXN], cnt[MXN];
int satisfied = 0;
int main() {
    cin >> n >> k >> r;
    for(int i = 0; i < n; i++) cin >> A[i];
    for(int i = 0; i < n; i++) tot[A[i]]++;
    for(int i = 0; i < r; i++) {
        int a, b; cin >> a >> b;
        req[a] = b;
        if(tot[a] < b) {
            cout << "impossible\n";
            return 0;
        }
    }
    auto add = [](int i) {
        cnt[A[i]]++;
        if(cnt[A[i]] == req[A[i]]) satisfied++;
 
 
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• Subtask 1: 16 / 16
• Subtask 2: 24 / 24
• Subtask 3: 28 / 28
• Subtask 4: 32 / 32