i have tested the programme many times on my compiler it is giving AC but on codechef it is showing WA …
please help if there are any errors or improvements
#include<stdio.h>
#include<string.h>
#include<math.h>
int main()
{
int t; char str[100000+1]; long len;
unsigned long sum=0;
scanf("%d",&t);
while(t--)
{
scanf("%s",str);
len=strlen(str);
for(long i=0;i<len;i++)
{ int diff=(int)str[i]-(int)str[i+1];
sum+=abs(diff);
if(str[len-1]==str[i+1])
{
break;
}
}
printf("%ul\n",sum);
}
return 0;
}