Submission #505270

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
505270	2022-01-11 02:45:19	wiwiho	Martian DNA (BOI18_dna)	C++14	100 / 100	33 ms	4548 KiB

dna

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#include <bits/stdc++.h>
using namespace std;
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n, k, r;
    cin >> n >> k >> r;
    vector<int> a(n + 1);
    for(int i = 1; i <= n; i++) cin >> a[i];
    vector<int> need(k);
    vector<int> cnt(k);
    for(int i = 0; i < r; i++){
        int b, q;
        cin >> b >> q;
        need[b] = q;
    }
    int lp = 1;
    int ans = -1;
    int ok = r;
    for(int i = 1; i <= n; i++){
        cnt[a[i]]++;
        if(cnt[a[i]] == need[a[i]]) ok--;
        while(lp < i && ok == 0 && cnt[a[lp]] > need[a[lp]]){
            cnt[a[lp]]--;
 
 
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• Subtask 1: 16 / 16
• Subtask 2: 24 / 24
• Subtask 3: 28 / 28
• Subtask 4: 32 / 32