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;
int n;
vector <int> nums;
vector <vector <int>> dp;
int solve(int l, int r) {
if (l >= r)
return 0;
if (dp[l][r] != -1)
return dp[l][r];
int ans = 1e9;
if (nums[l] == nums[r])
ans = solve(l+1, r-1);
else {
nums[l+1] += nums[l];
ans = min(ans, solve(l+1, r) + 1);
nums[l+1] -= nums[l];
nums[r-1] += nums[r];
ans = min(ans, solve(l, r-1) + 1);
nums[r-1] -= nums[r];
}
dp[l][r] = ans;
return ans;
}
int main() {
cin >> n;
nums.resize(n);
for (int i = 0; i < n; i++)
cin >> nums[i];
dp = vector <vector <int>> (n, vector <int> (n, -1));
cout << solve(0, n-1) << '\n';
}
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