Alternating Characters : HackerRank Problem Solution

Alternating Characters : HackerRank Problem Solution

C Implementation:

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

int main() {

    int T,i;
    char Sa[99999];
    char Tmp;
    int delcount=0;
    scanf("%d",&T);
    while(T>0)
        {
        delcount=0;
        scanf("%s",Sa);
        Tmp=Sa[0];
        for(i=1;Sa[i]!='\0';i++)
            {
            if(Tmp==Sa[i])
                delcount++;
            else
                {
                Tmp=Sa[i];
            }
        }
        printf("%d\n",delcount);
        T--;
    }
    return 0;
}