#include<stdio.h>

int main() {

     int a, b, c, d, max, max1, max2;

    

     printf("Nhap vao so a: ");

     scanf("%d", &a);

    

     printf("Nhap vao so b: ");

     scanf("%d", &b);

    

     printf("Nhap vao so c: ");

     scanf("%d", &c);

    

     printf("Nhap vao so d: ");

     scanf("%d", &d);

     max1=a;

     max2=c;

     if(a<b)

        max1=b;

                            

     if(c<d)

       max2=d;

      

    max=max1;

    if(max2>

#include<stdio.h>

int main() {

     int a, b, c, d, max, max1, max2;

    

     printf("Nhap vao so a: ");

     scanf("%d", &a);

    

     printf("Nhap vao so b: ");

     scanf("%d", &b);

    

     printf("Nhap vao so c: ");

     scanf("%d", &c);

    

     printf("Nhap vao so d: ");

     scanf("%d", &d);

     max1=a;

     max2=c;

     if(a<b)

        max1=b;

                            

     if(c<d)

       max2=d;

      

    max=max1;

    if(max2>max1)

            max=max2;

     printf("So lon nhat trong 4 so la: %d", max);

)

            min=min2;

     printf("So nho nhat trong 4 so la: %d", min);

var x,y,m,n,min:longint;

begin

write('Nhap x: '); readln(x);

write('Nhap y: '); readln(y);

write('Nhap m: '); readln(m);

write('Nhap n: '); readln(n);

if (x<y) and (x<m) and (x<n) then min:=x;

if (y<x) and (y<m) and (y<n) then min:=y;

if (m<y) and (m<x) and (m<n) then min:=m;

if (n<y) and (n<m) and (n<x) then min:=n;

write('So nho nhat la: ',min);

readln;

end.