#include <stdio.h>
//関数のプロトタイプ宣言
int max(int,int);
//ここ↓を埋めてね1
//main関数
int main(void) {
int a,b,c,d;
//ここ↓を埋めてね2
a=1;
b=5;
c=3;
d=4;
int A=max(max(a,b),max(c,d));
printf("%d,%d,%d,%dの中で一番大きい値は%d",a
,b
,c
,d
,A
); return 0;
}
//max関数の定義
int max(int x, int y){
//ここ↓を埋めてね
return (x>y)?x:y;
}
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