在C语言中，字符串中任意两个相同字符之间的最大字符数

1. 2‘a’ first index 0 last 5 , characters in between 5-0-1=4
2. ‘b’ first index 1 last 4 , characters in between 4-1-1=2
   Maximum character in between repeating alphabets : 4

1. ‘A’ first index 0 last 3 , characters in between 3-0-1=2
2. ‘b’ first index 1 last 7 , characters in between 7-1-1=5
3. ‘c’ first index 2 last 6 , characters in between 6-2-1=3
   Maximum character in between repeating alphabets : 5

#include <stdio.h>
#include <stdio.h>
#include <math.h>
int maxChars(char str[],int n){
   int size = n;
   int maxC = -1;
   for (int i = 0; i < n - 1; i++)
      for (int j = i + 1; j < n; j++)
         if (str[i] == str[j]){
            int temp=abs(j-i-1);
            maxC = maxC>temp?maxC:temp;
         }
   return maxC;
}
// Driver code
int main(){
   char Str[] = "AbcAaBcbC";
   printf("Maximum number of characters between any two same character in a string :%d",
   maxChars(Str,9) );
   return 0;
}

Maximum number of characters between any two same character in a string : 5