#include <stdio.h>
//引数の絶対値を返す関数
if(x<0){
x=-1*x;
}return x;
}
//引数の二乗を返す関数
int square(int x){
return x*x;
}
//main関数
int main(void) {
int a,b;
a = 1;
b = -2;
printf("|%d^2 - %d^2| = %d\n",a
,b
,abs(square
(a
) - square
(b
))); return 0;
}
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