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#include <stdio.h>
int main()
{
char num[512];
char *p;
printf("Enter a negative number:\n");
scanf("%s",&num);
if(num[0]=='-') p=&num[1];else p=num;
printf("the absolute value:%s\n",p);
}
#include <stdio.h>
int main()
{
int num;
printf("Enter a negative number:\n");
scanf("%d",&num);
if(num<0)
num=-num;
printf("the absolute value:%d\n",num);
return 0;
}