Write a C Program to toggle case in a string

Sumit Kar,String, Toggle Case

#include <stdio.h>

void main()


 char str[100];

 int i;

 printf("Please enter a string: ");

 fgets(str, 100, stdin);





  else if(str[i]>='a'&&str[i]<='z')



 printf("String in toggle case is: %s",str);



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