lldiv() function in C++ STL

The lldiv() is a builtin function in C++ STL which gives us the quotient and remainder of the division of two numbers.

Syntax:

lldiv(n, d)

Parameters: The function accepts two mandatory parameters which are described below:

  • n: It specifies the dividend. The data-type can be long long or long long int.
  • d: It specifies the divisor. The data-type can be long long or long long int.

Return value: The function returns a structure of type lldiv_t which consists of two members: quot and rem, where quot is the quotient and rem is the remainder. The struct is defined as follows:

struct lldiv_t {
    long long quot;
    long long rem;
};

Below programs illustrate the above function:

Program 1:

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// C++ program to illustrate the
// lldiv() function
#include <cstdlib>
#include <iostream>
using namespace std;
  
int main()
{
    long long n = 1000LL;
    long long d = 50LL;
  
    lldiv_t result = lldiv(n, d);
  
    cout << "Quotient of " << n << "/" << d
         << " = " << result.quot << endl;
  
    cout << "Remainder of " << n << "/" << d
         << " = " << result.rem << endl;
  
    return 0;
}

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Output:

Quotient of 1000/50 = 20
Remainder of 1000/50 = 0

Program 2:

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// C++ program to illustrate
// the lldiv() function
#include <cstdlib>
#include <iostream>
using namespace std;
  
int main()
{
    long long int n = 251987LL;
    long long int d = 68LL;
  
    lldiv_t result = lldiv(n, d);
  
    cout << "Quotient of " << n << "/" << d
         << " = " << result.quot << endl;
    cout << "Remainder of " << n << "/" << d
         << " = " << result.rem << endl;
  
    return 0;
}

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Output:

Quotient of 251987/68 = 3705
Remainder of 251987/68 = 47


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