Submission #396650

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
396650	2021-04-30 14:13:58	miss_robot	Martian DNA (BOI18_dna)	C++14	100 / 100	42 ms	4548 KiB

dna

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#include <bits/stdc++.h>
using namespace std;
int main(){
  cin.tie(0);
  ios::sync_with_stdio(0);
  int n, k, r, a = 0, b = 0, d = 0, e = 1e6;
  cin >> n >> k >> r;
  vector<int> s(n), q(k), o(k);
  for(int &x : s) cin >> x;
  for(int i = 0; i < r; i++){
    int f, g;
    cin >> f >> g;
    q[f] = g;
  }
  o[s[0]] = 1;
  if(q[s[0]] == 1) d++;
  if(d == r) e = 1;
  for(;;){
    if(d == r){
      if(o[s[a]] == q[s[a]]) d--;
      o[s[a]]--;
      a++;
      if(d == r) e = min(e, b-a+1);
    }
    else{
      b++;
      if(b == n) break;
      o[s[b]]++;
 
 
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• Subtask 1: 16 / 16
• Subtask 2: 24 / 24
• Subtask 3: 28 / 28
• Subtask 4: 32 / 32