Submission #1046116

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1046116	2024-08-06 10:15:16	Zicrus	Linear Garden (IOI08_linear_garden)	C++17	85 / 100	61 ms	65536 KiB

linear_garden

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
    int n, m;
    cin >> n >> m;
    string s;
    cin >> s;
    vector<int**> dp(n+1);
    for (int i = 0; i <= n; i++) {
        dp[i] = new int*[3];
        dp[i][0] = new int[3];
        dp[i][1] = new int[3];
        dp[i][2] = new int[3];
    }
    dp[n][0][0] = dp[n][1][1] = 1;
    dp[n][1][0] = dp[n][0][1] = 1;
    dp[n][2][0] = dp[n][0][2] = 1;
    for (int i = n-1; i >= 0; i--) {
        dp[i][0][0] = (dp[i+1][1][0] + dp[i+1][0][1]) % m;
        dp[i][1][1] = (dp[i+1][2][0] + dp[i+1][0][2]) % m;
        dp[i][1][0] = (dp[i+1][2][0] + dp[i+1][0][1]) % m;
        dp[i][0][1] = (dp[i+1][1][0] + dp[i+1][0][2]) % m;
        dp[i][2][0] = dp[i][0][2] = dp[i+1][1][1] % m;
    }
    int res = 1;
    int low = 0, high = 0;
 
 
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