SPOJ.com - Problem RGB7213

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RGB7213 - Үржвэр нийлбэр 1

1*2+2*3+3*4+...+n*(n+1) нийлбэрийг ол.

Input

Натурал тоо өгөгдөнө.

Output

Нийлбэр

Example

Input:
5

Output:
70

Submit solution!

Нэмсэн:	Bataa
Огноо:	2013-01-21
Хугацааны хязгаарлалт:	1s
Эх кодын хэмжээний хязгаарлалт:	50000B
Memory limit:	1536MB
Cluster:	Cube (Intel G860)
Програмчлалын хэлүүд:	ADA95 ASM32 BASH BF C NCSHARP CSHARP C++ 4.3.2 CPP C99 CLPS LISP sbcl LISP clisp D ERL FORTRAN HASK ICON ICK JAVA JS-RHINO JULIA LUA NEM NICE OCAML PAS-GPC PAS-FPC PERL PHP PIKE PRLG-swi PYTHON PYPY3 PYTHON3 RUBY SCALA SCM guile ST TCL WHITESPACE

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2021-11-19 00:12:49
int a, f=0;
Scanner cs = new Scanner(System.in);
a = cs.nextInt();
for(int i=1; i<=a; i++) {
f=f+(i*(i+1));
}
System.out.print(f);

2021-05-16 17:41:49
#include <iostream>
using namespace std;

int main(){
long n,s=1,i;
cin>>n;
cout<<(n*(n+1))/2+(n*(n+1)*(2*n+1))/6;
return 0;
}

2021-01-18 08:41:01
uursdu bod

2020-04-29 13:01:59
#include <iostream>
using namespace std;
int main(){
int a,f=0;
cin>>a;
for(int i=0;i<=a;i++){
f=f+(i*(i+1));
}cout<<f;
}

2019-12-26 08:24:06
#include <iostream>
using namespace std;
int main()
{
int a;
cin >> a;
int n = 0;
int b = 1;
int e;
int c = 0;
while (n < a)
{
n = (n + 1);
b = (n + 1);
e = (n * b);
c = (c + e);
}
cout << c << endl;
}

2019-10-26 15:44:05
#include <cstdio>
int main()
{
int a;
scanf ("%d",&a);
int b=a*(a+1)*(a+2)/3;
printf("%d",b);
return 0;
}

2019-03-06 04:05:43
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main() {
int a,b=0,c=0,d,i;
scanf("%d",&a);
for(i=1;i<=a;i++){
b=b+i*(i+1); }
printf("%d",b);
return 0;
}

2018-12-21 05:45:49
#include <bits/stdc++.h>
using namespace std;

int main ()
{
int n, i, sum = 0 ,d;
cin >> n;
int a[n];
for (i = 1; i <= n; i++)
{
d=i*(i+1);
sum+=d;

}
cout<<sum;
return 0;
}

2018-11-22 11:56:26

Last edit: 2018-11-22 11:56:37

АЛГОРИТМЫН ЦАГААН ТОЛГОЙ

RGB7213 - Үржвэр нийлбэр 1

Input

Output

Example