SPOJ.com - Problem RGB7214

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RGB7214 - Үржвэр нийлбэр 2

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

Input

Натурал тоо өгөгдөнө.

Output

Нийлбэр

Example

Input:
5

Output:
35

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

hide comments

2022-04-28 15:31:49
Anar MNII DUU YAVJ BITCHESTEI BOL

2022-03-28 10:15:07
#include<stdio.h>
int main(){
int i,n,s=0;
scanf("%d",&n);
for(i=1;i<=n;i++)
{s=s+i*(n-i+1);}
printf("%d",s);
}
mai suguudaa c deer shuu huuluul huul

2022-01-17 06:58:43
While bish for oor bodson n bnu

2021-11-19 00:12:21
int a, b=0;
Scanner cs = new Scanner(System.in);
a = cs.nextInt();
for(int i=1; i<=a; i++){
b=b+i*(a-i+1);
}
System.out.print(b);

2021-10-22 13:11:00
uunuu mni duu baga angidaa suu

2019-12-26 08:25:44
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 / 2 << endl; // ez bailaa

2019-12-02 06:34:07
#include <iostream>

using namespace std;

int main(){
int a, b, sum;
cin >> a >> b;
sum = a * b;
while(a != b){
if(a > b){
a -= b;
}else{
b -= a;
}
}
cout << sum / a << endl;
}

uur bodlogo des hohin ahhahhhahhah

2019-12-02 06:32:39
goy juuu

2019-11-19 05:22:13
Hervee unshjaagaa bol chi huurhun shuu

2019-11-16 15:00:28
#include<iostream>
using namespace std;
int main()
{
int a,b,i;
cin>>a;
b=0;
{
for(i=1;i<=a;i++)
b=1*b+2*(i-1)+3*(i-2);
}
cout<<b;
return 0;
}

АЛГОРИТМЫН ЦАГААН ТОЛГОЙ

RGB7214 - Үржвэр нийлбэр 2

Input

Output

Example