Submission #939397

#	Time	Username	Problem	Language	Result	Execution time	Memory
939397		KK_1729	Laugh Analysis (IOI16_laugh)	C++17	100 / 100	3 ms	1116 KiB

laugh

#include "laugh.h"
#include <bits/stdc++.h>
using namespace std;
int longest_laugh(string s)
{
    int n = s.size();
    vector<int> dp(n);
    if (s[0] == 'h' || s[0] == 'a') dp[0] = 1;
    for (int i = 0; i < n; ++i){
      if (s[i] == 'h'){
        if (s[i-1] == 'a') dp[i] = dp[i-1]+1;
        else dp[i] = 1;
      }
      if (s[i] == 'a'){
        if (s[i-1] == 'h') dp[i] = dp[i-1]+1;
        else dp[i] = 1;
      }
    }
    int ans = 0;
    for (auto x: dp) ans = max(ans, x);

    return ans;
}

• Subtask 1: 21 / 21
• Subtask 2: 26 / 26
• Subtask 3: 53 / 53