n, a, b = map(int, input().split())
l = list(map(int, input().split()))
ans = 0
c = 0
for i in l:
if i == 1:
if a != 0:
a -= i;ans += 1
elif b != 0:
ans += i;b -= 1;c += 1
elif c != 0:
ans += i;c -= 1
else:
if b != 0:
ans += i;b -= 1
print(sum(l)-ans)
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
using namespace std;
int main(){
ll n,a,b;
cin>>n>>a>>b;
ll x=0;
ll c=0;
for(int i=0;i<n;++i){
ll k;
cin>>k;
if(k==1){
if(a>0){
a--;
}
else if(b>0){
b--;
x++;
}
else if(x>0){
x--;
}
else c++;
}
if(k==2){
if(b>0){
b--;
} else c=c+2;
}
}
cout<<c<<endl;
}Cutting a material | Bubble Sort |
Number of triangles | AND path in a binary tree |
Factorial equations | Removal of vertices |
Happy segments | Cyclic shifts |
Zoos | Build a graph |
Almost correct bracket sequence | Count of integers |
Differences of the permutations | Doctor's Secret |
Back to School | I am Easy |
Teddy and Tweety | Partitioning binary strings |
Special sets | Smallest chosen word |
Going to office | Color the boxes |
Missing numbers | Maximum sum |
13 Reasons Why | Friend's Relationship |
Health of a person | Divisibility |
A. Movement | Numbers in a matrix |