program bai1;

var a,b,c:longint;

begin

write('Nhap so a= ');readln(a);

write('Nhap so b= ');readln(b);

write('Nhap so c= ');readln(c);

min:=a;

if min>b then min:=b

else if min>c then min:=c;

writeln('So nho nhat la ',min);

readln

end. 

vote cho mình nha 

nclude <stdio.h>

int main() {

          int a, b, c, min, max;

 

          printf("Nhap so thu nhat: ");

          scanf("%d", &a);

 

          printf("Nhap so thu hai: ");

          scanf("%d", &b);

          printf("Nhap so thu ba: ");

          scanf("%d", &c);

 

          min=a;

 

  

          if(b<min)

                   min=b;

          if(c<min)

                   min=c;

       

writeln("\nSo nho nhat la %d", min);

readln

end

Học tốt!!!

#nocopy