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LCS_4print.cpp
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79 lines (69 loc) · 1.34 KB
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#include<iostream>
#include<algorithm>
using namespace std;
string LCS(string x, string y, int m, int n)
{
int t[m+1][n+1];
for(int i=0; i<m+1; i++)
{
for(int j=0; j<n+1; j++)
{
if(i==0 || j==0)
{
t[i][j] = 0;
}
else
{
if(x[i-1]==y[j-1])
{
t[i][j] = 1 + t[i-1][j-1];
}
else
{
t[i][j] = max(t[i-1][j], t[i][j-1]);
}
}
}
}
for(int i=0; i<m+1; i++)
{
for(int j=0; j<n+1; j++)
{
cout<<t[i][j]<<" ";
}
cout<<endl;
}
int i=m, j=n;
string s;
while(i>0 && j>0)
{
if(x[i-1]==y[j-1])
{
s.push_back(x[i-1]);
i--;
j--;
}
else
{
if(t[i-1][j]>t[i][j-1])
{
i--;
}
else
{
j--;
}
}
}
reverse(s.begin(),s.end());
return s;
}
int main()
{
string x = "acbcf";
string y = "abcdaf";
int m = x.length();
int n = y.length();
string length = LCS(x,y,m,n);
cout<<"Length "<<length<<endl;
}