Source.cpp
Source.cpp(51) : error C2872: 'ws' : ambiguous symbol
        could be 'Source.cpp(17) : char **ws'
        or       'ws'
Source.cpp(58) : error C2872: 'ws' : ambiguous symbol
        could be 'Source.cpp(17) : char **ws'
        or       'ws'
LINK : warning LNK4001: no object files specified; libraries used
libcmtd.lib(crt0.obj) : error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup
a.exe : fatal error LNK1120: 1 unresolved externals

//#include"Header.h"
#include <iostream>
#include <ctype.h>
#include<stdio.h>
#include<string.h>

using namespace std;


extern int getword (char*w);
extern int add     (char *ws[], int cnts[], int wsl,char *w);
extern int indexof (char *ws[],             int wsl,char *w);

	
	int *cnts=0;
//	char **wrds=0;
	char **ws=0;           //<---------------




void main(int argc, char **argv)
{

//	char **ws=0;
	int c;
//	int *cnts=0;
	char nextw[50]={0};
	int wsl=0;
	int ind=0;
	int pflag=0;
	char w_sort[50] = {0};

	while((c=getword(nextw))!=EOF)
	{		

		if(isspace(c))
			continue;
		if(ispunct(c))
		{
			if(pflag!=0)
			{
				nextw[0]=c;
				nextw[1]=0;	
			}
			else 
				continue;
		}

	//	ind=indexof(wrds,wsl,nextw);
		ind=indexof(ws,wsl,nextw);     //<------------------

		if(ind>=0)
			(cnts[ind])++;
		else
		{
//			wsl=add(wrds,cnts,wsl,nextw);
			wsl=add(ws,cnts,wsl,nextw);  //<--------------------------
			cerr<<"\nyes "<< wsl;
		}
	}
}

int indexof(char *ws[], int wsl,char *w)
{

	for(int i=0;i<wsl;i++)
	{
		if(strcmp(ws[i],w)==0)
			return i;
	}

	return -1;
}

int add(char *ws[], int *cnts, int wsl,char *w)
{

	int *cnts1=(int *)malloc(sizeof(int)*(wsl+1));
	char **ws1=(char **)malloc(sizeof(char *)*(wsl+1));

	for(int i=0;i<wsl;i++)
	{
		ws1[i]=ws[i];
		cnts1[i]=cnts[i];
	}

	free(cnts);
	cnts=cnts1;
	free(ws);
	ws=ws1;
	fprintf(stderr,"\n--%d", ws);

	cnts[wsl]=1;
	ws[wsl]=(char *)malloc(strlen(w)+1);
	strcpy(ws[wsl],w);
	wsl++;
	return wsl;
}


int getword(char *w)
{
	int c=0;
	int i=0;
	w[0]=0;
	for (i=0;;i++)
	{
		c=getchar();
		if (c==EOF) break;
		else if (ispunct(c))
		{
			if(i>0)
				ungetc(c,stdin);
			break;
		}
		else if (isspace(c))
		{
			if(i>0)
				ungetc(c,stdin);
			break;
		}
		else{
			w[i]=c;
			w[i+1]=0;
		}

	}

	if(i>0)
		c=w[0];
	return c;
}

	 ind=indexof(::ws,wsl,nextw);