Need help with my code

#include<stdio.h>
#include<conio.h>

void main()
{
	char str[50];
	int words = 0, len = 0, i;
	clrscr();
	printf("\n--------------------------------------------------------");
	printf("\n\nPROGRAM TO COUNT THE NUMBER OF WORDS IN A GIVEN STRING");
	printf("\n\n--------------------------------------------------------");
	printf("\n\n\t ENTER A STRING...: ");
	gets(str);
	while(str[len]!='\0')
		len++;
	len--;
	for(i=0;i<=len;i++)
	{
		if((str[i] == ' ' && str[i+1] != ' ') || i == len)
			words++;
	}
	printf("\n\t NUMBER OF WORDS IN THE ABOVE SENTENCE IS...: %d", words);
	printf("\n\n-------------------------------------------------------");
	getch();
}

#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>

int main()
{
	char str[50];
	int words = 0, len = 0, i, number;
//	clrscr();
	printf("\n--------------------------------------------------------------------------");
	printf("\n\nPROGRAM TO COUNT THE NUMBER OF WORDS, STRING, SPACE IN A GIVEN STRING");
	printf("\n\n--------------------------------------------------------------------------");
	printf("\n\n\t ENTER A STRING...: ");
	gets(str);
	number = strlen(str);
	while(str[len]!='\0')
		len++;
//	len--;
	for(i=0;i<=len;i++)
	{
		if((str[i] == ' ' && str[i+1] != ' ') || i == len)
			words++;	
	}
	printf("\n\t NUMBER OF WORDS IN THE ABOVE SENTENCE IS...: %d", words);
	printf("\n\n-------------------------------------------------------");
	printf("\n\t NUMBER OF STRING IN THE ABOVE SENTENCE IS...: %u", number);
	printf("\n\n-------------------------------------------------------");
	  
	getch();
	return 0;
}