#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);
