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lcs_bottomup.cpp
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41 lines (39 loc) · 905 Bytes
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#include <iostream>
#include <string.h>
using namespace std;
class lcs
{
public:
int lcs_bttmup(string x, string y, int m, int n)
{
if (m == 0 || n == 0)
return 0;
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;
}
}
for (int i = 1; i < m + 1; i++)
{
for (int j = 1; j < n + 1; j++)
{
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]);
}
}
return t[m][n];
}
};
int main()
{
string x = "Shashikant";
string y = "Sharma";
lcs ob;
cout << ob.lcs_bttmup(x, y, x.length(), y.length());
}