【leetcode】Palindrome Partitioning II
Palindrome Partitioning II
Given a string s, partition s such that every substring of the partition is a palindrome.
Return the minimum cuts needed for a palindrome partitioning of s.
For example, given s = "aab",
Return 1 since the palindrome partitioning ["aa","b"] could be produced using 1 cut.
class Solution {
public:
int minCut(string s) {
int n=s.length();
vector<vector<bool> > isP(n,vector<bool>(n,false));
for(int i=n-;i>=;i--)
{
for(int j=i;j<n;j++)
{
if(s[i]==s[j]&&(j-i<=||isP[i+][j-])) isP[i][j]=true;
}
}
vector<int> dp(n+);
dp[n]=-; //注意边界条件,表示了dp[i]无需分割时,dp[i]=dp[n]+1=0;
for(int i=n-;i>=;i--)
{
int minCut=INT_MAX;
for(int k=i+;k<n+;k++)
{
if(isP[i][k-]&&minCut>dp[k]+)
{
dp[i]=dp[k]+;
minCut=dp[i];
}
}
}
return dp[];
}
};
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