#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 x,int y, int z, int v);
//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;
d=max(a,b,c,d);
return 0;
}
//max関数の定義
int max(int x, int y, int z, int v){
//ここ↓を埋めてね3
int m;
m=x;
if(m<y)m=y;
if(m<z)m=z;
if(m<v)m=v;
return m;
}
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