sum of all n integers

loricvdt answered on December 20, 2020 Popularity 10/10 Helpfulness 4/10

answer sum of all n integers

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sum of all n integers

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Sum of n integers 1 + 2 + 3 + ... + n = n * (n + 1) / 2

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Tags: n sum whatever

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Contributed on Apr 06 2021

loricvdt

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sum of n natural numbers

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//Created by https://ashif.in

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n; //Take Input
	
  	int sum = n*(n+1)/2;    //Calculate Sum
  	
	cout<<sum;		//Print Sum
  
	return 0;
}

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Tags: c++

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Contributed on Apr 21 2022

Ashif Ali

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formula for sum of n numbers

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Sum of the First n Natural Numbers. We prove the formula 1+ 2+ ... + n = n(n+1) / 2, for n a natural number

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Contributed on Dec 20 2020

Adventurous Addax

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sum of n natural numbers

Comment

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	int sum=0;
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		sum+=i;
	}
		cout<<sum<<" ";
	cout<<endl;
	return 0;
}

Popularity 10/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Jun 06 2021

Frightened Ferret

0 Answers Avg Quality 2/10

sum of all n integers

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