C code in latex

\documentclass[a4paper,10pt]{article}
\usepackage[utf8x]{inputenc}

\usepackage{listings}

\begin{document}


\lstset{language=C,frame=single,numbers=left,tabsize=2}
\begin{lstlisting}
#include
#include
#include

int
max(int a, int b)
{
if(a>b) return a;
else return b;
}

void
reconstruct(char *x, char *y, 
            int table[strlen(x)+1][strlen(y)+1])
{
int n=strlen(x),m=strlen(y),i,j,currentChar;
int maxlcs=table[n][m];
char* lcschar=(char*)malloc((maxlcs+1)*sizeof(char));
*(lcschar+maxlcs)='\0';

currentChar=0;
i=0;
j=0;

while(currentChar
{
  if( *(x+i) == *(y+j) )
  {
   *(lcschar+currentChar)=*(x+i);
   currentChar++;
   //printf("%c\n",*(x+i));
   i++;
   j++;
  }
  else if(table[i+1][j] >= table[i][j+1]) i++;
  else j++;
}
printf("%s\n",lcschar);
free(lcschar);
}


int
lcs(char *x,char *y)
{
//printf("%zu\n",strlen(x));
int n=strlen(x), m=strlen(y), i, j, table[n+1][m+1];
for(i=0;i<=n;i++) table[i][0]=0;
for(j=0;j<=m;j++) table[0][j]=0;
for(i=1;i<=n;i++)
  for(j=1;j<=m;j++)
   if( *(x+i) == *(y+j) ) table[i][j]=1+table[i-1][j-1];
   else table[i][j]=max(table[i-1][j], table[i][j-1]);

reconstruct(x,y,table);
return table[n][m];
}


void
main()
{
int res=lcs("abdebcbb","adacbcb");
//printf("%d\n",res);
}
\end{lstlisting}


\end{document}