Cod sursa(job #2913934)

Utilizator vlad2009Vlad Tutunaru vlad2009 Data 18 iulie 2022 00:27:37
Problema Twoton Scor 100
Compilator cpp-64 Status done
Runda Arhiva ICPC Marime 0.79 kb
#include <fstream>

using namespace std;

const int MAX_N = 1e5;
const int MOD = 19997;
int a[MAX_N + 1], v[MAX_N + 1], answer[MAX_N + 1];
int n;

int solve(int i) {
    if (v[i] == 0) {
        answer[i] = 1;
        if (i == n) {
            v[i] = a[i];
            return v[i];
        }
        int x = solve(i + 1);
        answer[i] = (answer[i] + answer[i + 1]) % MOD;
        if (a[i] < x) {
            v[i] = a[i];
        } else {
            answer[i] = (answer[i] + answer[i + 1]) % MOD;
            v[i] = x;
        }
    }
    return v[i];
}

int main() {
    ifstream fin("twoton.in");
    ofstream fout("twoton.out");
    fin >> n;
    for (int i = 1; i <= n; i++) {
        fin >> a[i];
    }
    solve(1);
    fout << answer[1];
    return 0;
}