#include <stdio.h>
 
// 関数プロトタイプ宣言
double max(double x, double y);
double abs_val(double x);
double cube(double x);
 
// main関数を一番上に
int main(void) {
    double a, b;
    a = -3.2;
    b = 1.4;
    printf("max(|%.2f|,(%.2f)^3)=%.2f\n", a, b, max(abs_val(a), cube(b)));
    return 0;
}
 
// 二つの引数の大きい方の値を返す関数
double max(double x, double y) {
    return (x > y) ? x : y;
}
 
// 引数の絶対値を返す関数
double abs_val(double x) {
    return (x > 0) ? x : -x;
}
 
// 引数の三乗の値を返す関数
double cube(double x) {
    return x * x * x;
}
 

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