[C] 184 절대값 abs()

Desc :

int abs( int n );

 

절대값은 양수일텐데 왜 unsiged int형이 아닐까요?

 

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Source Code :

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

void main()
{
	printf("abs(1): %d \n", abs(1));
	printf("abs(-1): %d \n", abs(-1));
}

 

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Result :