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Create 0268_Week 05(cpp) #1342

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25 changes: 25 additions & 0 deletions Week_05/G20190343020268/0268_Week 05(cpp)
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//72. 编辑距离
class Solution {
public:
int minDistance(string word1, string word2) {
int m = word1.size();
int n = word2.size();
if(m*n==0)return m+n;
vector<vector<int>> dp(m+1,vector<int>(n+1));
for(int i=0;i<m+1;i++)
dp[i][0] = i;
for(int j = 0;j<n+1;j++)
dp[0][j] = j;
for(int i=1;i<m+1;i++){
for(int j=1;j<n+1;j++){
if(word1[i-1]==word2[j-1])
dp[i][j] = min(min(dp[i-1][j]+1,dp[i][j-1]+1),dp[i-1][j-1]);
else
dp[i][j] = min(min(dp[i-1][j],dp[i][j-1]),dp[i-1][j-1])+1;

}
}
return dp[m][n];
}

}