Unique password generator program

Generate Unique password program

#include<stdio.h>

#include<stdlib.h>

#include<time.h>

int main()
{
 int i,password,len;
 srand((unsigned int)time(NULL));
 printf("\n\n\n\t\t\t ENTER THE PASSWORD LENGHT AND MUST  BE GREATER THAN 5 : ");
 scanf("%d",&len);
 if(len>=5&&len<=20)
 {
  for(i=0;i<len;i++)
  {
   int k=rand()%128;
   if((k>=48&&k<=57)||(k>=65&&k<=90)||(k>=97&&k<=122)||(k>=35&&k<=37)||k==64)
   {
    printf("%c",k);
   }
   else
   {
    i--;
   }
  }
  printf("\n");
 }
 else
 {
  printf("\n\t\t\t LENGTH SHOULD BE GREATER THAN 5 and equal or less than 20 !!! ");
  
 }
 return 0;
}

Video link : https://youtu.be/weQYMCiEIds

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