class Solution:
def PredictTheWinner(self, nums: List[int]) -> bool:
# @lru_cache()
def dfs(i,j):
if i==j:
return nums[i]
return max(nums[i]-dfs(i+1,j),nums[j]-dfs(i,j-1))
return dfs(0,len(nums)-1)>=0
class Solution {
public:
// int dfs(vector<int>& nums, )
bool PredictTheWinner(vector<int>& nums) {
int n=nums.size();
vector<vector<int>>dp(n,vector<int>(n,0));
for(int i=0;i<n;i++)
dp[i][i]=nums[i];
for(int j=1;j<n;j++){
for(int i=0;i<n-j;i++){
dp[i][i+j]=max(nums[i]-dp[i+1][i+j],nums[i+j]-dp[i][i+j-1]);
}
}
return dp[0][n-1]>=0;
}
};