Cod sursa(job #2539086)
Utilizator | Alexandru Peticaru Pety | Data | 5 februarie 2020 16:44:10 |
---|---|---|---|
Problema | Nivele | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.57 kb |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define f first
#define s second
ifstream fin ("nivele.in");
ofstream fout ("nivele.out");
int n, x;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
fin >> n;
vector<int>v;
for (int i = 1; i <= n; i++) {
fin >> x;
v.push_back();
while (v.size() >= 2 && v[s.size() - 2] == v.back()) {
v.pop_back();
v.back()--;
}
}
if (v.size() == 1 && v[0] == 1) {
fout << "DA";
}
else
fout << "NU";
return 0;
}