Cod sursa(job #2051574)
Utilizator | Ionut Anghelina ionanghelina | Data | 29 octombrie 2017 11:22:08 |
---|---|---|---|
Problema | Nivele | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.64 kb |
#include<bits/stdc++.h>
using namespace std;
int st[50005],vf,t,n,x;
int main()
{
freopen("nivele.in","r",stdin);
freopen("nivele.out","w",stdout);
scanf("%d",&t);
while(t--)
{
scanf("%d",&n);
vf=0;
for(int i=1;i<=n;i++)
{
scanf("%d",&x);
st[++vf]=x;
while(vf>=2 && st[vf]==st[vf-1])
{
x=st[vf];
vf-=2;
st[++vf]=x-1;
}
}
if(vf==1 && st[vf]==1)
{
printf("DA\n");
}
else printf("NU\n");
}
return 0;
}