c语言如何求最大值

#include

<stdio.h>

main(){

int a,b,c;

int big;

printf("请输入3个数\n");

scanf("%d %d %d",&a,&b,&c);

if(a>=b)big=a;

else

big=b;

if(c>big)

big=c;

printf("最大数是%d\n",big);

}