View Code of Problem 3924

#include<stdio.h>
#include<string.h>
/**/
int main()
{
	char  a[1000000000];
	char b[1000000000];
	char flag;
	int t=0;
	scanf("%s",a);
	for(int i=0;i<strlen(a);i++)
	{
		flag=a[i];
		while(a[i+1]==flag)
		{
			i++;
		}
		b[t++]=flag;
	}
	printf("%s",b);
	return 0;
}

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