이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
#define endl "\n"
typedef long long int ll;
int arr[100007];
int solve(int i,int j){
if(i>=j) return 0;
if(arr[i]==arr[j]) {
return solve(i+1,j-1);
}
else if(arr[i]>arr[j]) {
arr[j-1]+=arr[j];
return 1+solve(i,j-1);
}
else {
arr[i+1]+=arr[i];
return 1+solve(i+1,j);
}
}
int main()
{
ios_base:: sync_with_stdio(false); cin.tie(0);
int n; cin>>n;
for(int i=1; i<=n; i++) cin>>arr[i];
cout<<solve(1,n)<<endl;
return 0;
}
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