#include <stdio.h>
//関数のプロトタイプ宣言
//ここ↓を埋めてね1
int max(int , int );
//main関数
int main(void) {
int a,b,c,d;
//ここ↓を埋めてね2
a=1;
b=2;
c=3;
d=4;
int w=max(max(a,b), max(c,d));
printf("%d, %d, %d, %dの中で最も大きい数字は%d", a
, b
, c
, d
, w
); return 0;
}
//max関数の定義
int max(int x, int y){
//ここ↓を埋めてね3
return (x>y)? x:y;
}
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