/C++/Summation of Natural Number Sequence with c and c++.

Summation of Natural Number Sequence with c and c++.

#include<bits/stdc++.h>
using namespace std;
int main()
{    
  unsigned int a, b;    
  long long int sum = 0, n;    
  double s1;    
  cin >> a >> b;    
  n = (b-a) + 1;    
  sum = n * ((double)(a+b) / 2);    
  cout << sum << endl;        
  return 0;
}

Source: urionlinejudge.com.br

Similar codes

0 vote121 views1 answer
Hash Sort in C++
C++
0 vote118 views1 answer
C++ get string between two characters
C++
4 votes126 views3 answers
Static
C++
2 votes125 views2 answers
Qt disable resizing window
C++
0 vote197 views1 answer
Sort n characters in descending order c++
C++
0 vote116 views1 answer
C++ fill string with random uppercase letters
C++
0 vote119 views2 answers
Method
C++
0 vote120 views1 answer
C++ define array with values
C++
0 vote124 views1 answer
Std::cout and cout
C++
-1 vote138 views4 answers
Inline function in c++
C++