Viết chương trình nhập vào 3 số nguyên dương. Kiểm tra xem 3 số đó có là 3 cạnh của một tam giác hay không? Dữ liệu vào : - Ba số nguyên dương a, b,c Dữ liệu ra : - Dòng 1 : in ra "yes" hoặc" no" tương ứng với việc kiểm tra 3 số đó có là 3 cạnh của một tam giác hay không . -Dòng 2 : in ra diện tích tam giác nếu dòng 1 in ra "yes" ngược lại không in ra gì cả . GIÚP VỚI MN ƠI !

2 câu trả lời

#include<bits/stdc++.h>

using namespace std;

int main(){

float a,b,c,p;

cin>>a>>b>>c;

p=(a+b+c)/2;

if(a+b>c && a+c>b && b+c>a){

cout<<"Yes\n";

cout<<sqrt(p*(p-a)*(p-b)*(p-c));

}else{

cout<<"No";

}

}

uses crt;

var a, b, c, p , s : real;

begin

clrscr;

write('nhap ba so a, b, c : ');readln(a, b, c);

if (a + b > c) and (b + c > a) and (a + c > b) then

begin

writeln('yes');

p := (a + b + c) / 2;

s := sqrt(p * (p - a) * (p -b) * (p - c));

writeln('dien tich = ', s:2:1);

end

else writeln('no');

readln

end.

Câu hỏi trong lớp Xem thêm

giup e voi I/ Supply the correct form of the verbs in brackets 1. You (think) ……………………… collecting stamps costs much money? 2. Every year, my mother (give) ……………………… me a nice doll on my birthday. 3. Jenny says she loves collecting pens but she (not/continue) ……………………… this hobby from next year. 4. If you wash your hands more, you (have)……………………. less chance of catching flu. 5. Getting plenty of rest is very good. It (help)…………………. you to avoid depression. 6. Mr. John (be) ……………………… principal of our school since last year. 7. I (see) ……………………… a car accident on this corner yesterday. 8. We like (come)……………………to school by bus, but we hate (stand)………………………. and (wait) …………………… in the rain. 9. ……………………… (you/ ever/ meet) anyone famous? 10. My mother (come) ……………………… to stay with us next weekend. 11. When he lived in Manchester, he (work) ……………………… in a bank. 12. We (be) ……………………… students for four years. 13. We are planting trees around our school now. Our school (be) ……………………… surrounded by a lot of green trees. 14. What ……………………… your father usually ……………………… (do) in the evenings? 15. My sister likes (cook) ……………………… very much. She can cook many good foods. 16. My father says when he's retired, he (go) …………………… back to his village to do the gardening. 17. They want (buy) ……………………… some meat for dinner. 18. Linh is my best friend. We (know) ……………………… each other for 5 years. 19. I enjoy (fish) ……………………… because it is relaxing. 20. How about (go) ……………………… to the movie theatre?

3 lượt xem
1 đáp án
17 giờ trước