Submission #106135

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
106135	2019-04-16 18:19:12	ihdignite	Vim (BOI13_vim)	C++14	27.78 / 100	52 ms	6016 KiB

vim

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#include <bits/stdc++.h>
using namespace std;
const int mxN=7e4;
int n, ans=1e9, dp[mxN][10], nxt[mxN+1][10];
string s;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cin >> n >> s;
  fill(nxt[n], nxt[n]+10, n);
  for(int i=n-1; ~i; --i) {
    memcpy(nxt[i], nxt[i+1], 40);
    nxt[i][s[i]-'a']=i;
  }
  memset(dp, 0x3f, sizeof(dp));
  dp[0][s[0]-'a']=0;
  int e=n-1;
  while(e&&s[e-1]^'e')
    --e;
  for(int i=0; i<n; ++i) {
    for(int j=0; j<10; ++j) {
      if(j==4)
        continue;
      if(nxt[i][j]>=e)
        ans=min(dp[i][j], ans);
      int y=n;
      for(int k=0; k<10; ++k)
 
 
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• Subtask 1: 27.77777777777778 / 50
• Subtask 2: 0 / 10
• Subtask 3: 0 / 40