-
Notifications
You must be signed in to change notification settings - Fork 2
/
CHFICRM.cpp
48 lines (44 loc) · 1.02 KB
/
CHFICRM.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
#include<bits/stdc++.h>
using namespace std;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int t;
cin>>t;
while(t--){
int n;
cin>>n;
int a[n];
for(int i=0;i<n;i++) cin>>a[i];
int five=0, ten=0, fif=0;
bool flag=true;
if(a[0]!=5){
flag=false; n=0; // to stop the loop
} else five++;
for(int i=1;i<n;i++){
if(a[i]==5) {
five++;
} else if(a[i]==10){
ten++;
if(five>=1) five--;
else {
flag=false; break;
}
} else if(a[i]==15){
fif++;
if(ten>=1) ten--;
else {
if(five>=2) five-=2;
else {
flag=false; break;
}
}
}
}
if(flag) cout<<"YES";
else cout<<"NO";
cout<<endl;
}
return 0;
}