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  1. // written by Eng. Abdullah Haydari
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4. int main(){
  5.     string s1,s2; cin>>s1>>s2;
  6.     int n=s1.size();
  7.     int m=s2.size();
  8.     int A[m+1],memo[m+1];
  9.     for (int i=0;i<=m;i++)
  10.         memo[i]=m-i;
  11.     for (int i=n-1;i>=0;i--){
  12.         A[m]=n-i;
  13.         for (int j=m-1;j>=0;j--)
  14.             if (s1[i]==s2[j])
  15.                 A[j]=memo[j+1];
  16.             else
  17.                 A[j]=1+min({memo[j],A[j+1],memo[j+1]});
  18.         for (int j=0;j<=m;j++)
  19.             memo[j]=A[j];
  20.     }
  21.     cout<<memo[0];
  22. }
Success #stdin #stdout 0.01s 5316KB
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https://ideone.com/PbOa6R
language:
C++14 (clang 8.0)
created:
1 day ago
visibility:
public

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