6.Greater among 4 value

 #include<stdio.h>

// to find greater number among four numbers

int main(){

    int a,b,c,d,great1=0,great2=0;

    printf("Enter any four numbers :");

    scanf("%d %d %d %d",&a,&b,&c,&d);

    if(a>b)

    great1=a;

    else

    great1=b;

    if(c>d)

    great2=c;

    else

    great2=d;

    if(great1>great2)

    printf("%d is greater\n",great1);

    else

    printf("%d is greater\n",great2);

    return 0;

}