Lập trình C- Bài tập 16 pdf

#include <iostream.h>

# include <math.h>

void main () {

long i,n,a,b,c,dem1=0,dem2=0,t1=0,t2=0;

cout<<"Nhap vao doan a,b,c : " ; cin>>a>>b>>c;

cout<<"Cac so nguyen to doan a,b: "<<endl;

for(n=a;n<=b;n++){

i=2;

while(n%i!=0&&i<=sqrt(n))i++;

if(i>sqrt(n)){

t1+=n;

dem1++;
cout<<n<<" "; }}

cout<<"
\
n Co "<<dem1<<" so nguyen to"<<endl;

cout<<"Tong doan a,b: "<<t1<<endl;

cout<<"Cac so nguyen doan b,c ;"<<endl;

for(n=b;n<=c;n++){

i=2;

while(n%i!=0&& i<=sqr
t(n))i++;

if(i>sqrt(n)) {

t2+=n;

dem2++;

cout<<n<<" "; }}

cout<<"
\
n Co "<<dem2<<" so nguyen to "<<endl;

cout<<"Tong doan b,c : "<<t2<<endl;

if(dem1<dem2)cout<<"Doan 2 co nhieu so nguyen to hon ! "<<endl;

else

if(dem
1>dem2)cout<<"Doan 1 co nhieu so nguyen to hon
!"<<endl;

else

cout<<"2 doan co so nguyen to bang nhau !";

}