/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

1 vote342 views1 answer
Detect cycle in an undirected graph
C++
1 vote364 views1 answer
Avrational compare
C++
0 vote361 views1 answer
Hola mundo c++
C++
0 vote334 views1 answer
PCL RANSAC
C++
-1 vote322 views1 answer
Flags of open operation c++
C++
174 votes422 views15 answers
Int to string c++
C++
15 votes329 views10 answers
Hello world
C++
4 votes320 views1 answer
Log base e synthax c++
C++
0 vote347 views1 answer
C++ abs template
C++
0 vote347 views1 answer
Hashset in cpp
C++