오류내용 :
(14) : warning C4700: local variable \'a1\' used without having been initialized
(15) : warning C4700: local variable \'a2\' used without having been initialized
(16) : warning C4700: local variable \'a3\' used without having been initialized
(17) : warning C4700: local variable \'a4\' used without having been initialized

#include<stdio.h>

void pls(int *n1, int *n2, int result);
void mns(int *n1, int *n2, int result);
void mlt(int *n1, int *n2, int result);
void dvn(int *n1, int *n2, int result);

void main()
{
 int n1, n2, a1,a2,a3,a4;
 printf("두 수를 입력하시오 : ");
 scanf("%d %d", &n1, &n2);

 pls(&n1,&n2,a1);
 mns(&n1,&n2,a2);
 mlt(&n1,&n2,a3);
 dvn(&n1,&n2,a4);

 printf("%d + %d = %d\\n%d - %d = %d\\n%d * %d = %d\\n%d / %d = %d\\n", n1, n2, a1, n1, n2, a2, n1, n2, a3, n1, n2, a4);
}

void pls(int *n1, int *n2, int result)
{
 result = *n1 + *n2;
}

void mns(int *n1, int *n2, int result)
{
 result = *n1 - *n2;
}

void mlt(int *n1, int *n2, int result)
{
 result = *n1 * *n2;
}

void dvn(int *n1, int *n2, int result)
{
 result = *n1 / *n2;
}



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