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What is the data type of cin?
7 голосов
55 ответовhey guys, I've been trying to work out the formula 'v=I*r'. But whenever I run the program and input values for I and r, it doesn't give the right answer.
This is the code
#include <iostream>
using namespace std;
int main() {
int i,r;
int v = i*r;
cout<<"what is the value of i?\n";
cin>>i;
cout<<"what is the value of r?\n";
cin>>r;
cout<<"voltage ="<<v<<endl;
return 0;
}
p/s: I'm new to programming
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How to input text in cin... For example... Compiled.. Please enter no. : input... And sum
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help me on this code:
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wt is output if a=2.0,b=2.5
#include <iostream>
using namespace std;
int main()
{
int a, b;
int sum;
cout << "Enter a number \n";
cin >> a;
cout << "Enter another number \n";
cin >> b;
sum = a + b;
cout << "Sum is: " << sum << endl;
return 0;
}
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What is difference between using cin and using cout?If there is difference then when to use each of them?
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What is cin?
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In C++ and C we use cin and scanf for value reading purpode and printf and cout for writing purpose .
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7 ответов
#include<iostream>
using namespace std;
int main ()
{
int a,b;
int sum=a+b;
cout<<"enter a number";
cin>>a;
cout<<"enter another number";
cin b;
cout<<" sum is"<<sum<<endl;
return 0;
}
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c++ user input
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“Cin” input in C++
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#include <iostream>
using namespace std;
int main() {int a, b, sum= a+b;
cout << "Enter 1st number \n";
cin >> a; cout << a <<
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Taking inputs in c/c++
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Try to use more functions with cin statement inside the c program, compile. and run the program.
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