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  1. #include<iostream>
  2. using namespace std;
  3. int main(){
  4.    double chieuDai, chieuRong, chuVi, dienTich;
  5.    cout <<"2:";cin >>chieuDai;
  6.    cout <<"4:"; cin >>chieuRong;
  7.    chuVi = (chieuDai+chieuRong)*2;
  8.    dienTich = chieuDai*chieuRong;
  9.    cout <<"Chu vi la:" <<chuVi;
  10.    cout <<"\nDien tich la:" <<dienTich;
  11.    return 0;
  12. }
  13.  
Success #stdin #stdout 0.01s 5300KB
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stdin
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Standard input is empty
stdout
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2:4:Chu vi la:2.31884e-309
Dien tich la:0
https://ideone.com/s8av6Y
language:
C++ (gcc 8.3)
created:
3 hours ago
visibility:
public

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