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ABR0072A - Параболууд

a бодит тоо өгөгдөв. f(a)-гийн утгыг ол. f нь 2 үетэй бөгөөд [-1, 1] хэрчим дээр -x^2+1 функцтэй давхцана.

Input

a бодит тоо өгөгдөнө

Output

f(a)-гийн утгыг таслалаас хойш нэг оронтой нь хэвлэнэ

Example

Input:
2

Output:
1.0

Нэмсэн:sw40
Огноо:2007-11-03
Хугацааны хязгаарлалт:1s
Эх кодын хэмжээний хязгаарлалт:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Програмчлалын хэлүүд:Бүгд дараах хэлүүдээс бусад: ASM32-GCC MAWK BC C-CLANG NCSHARP CPP14 CPP14-CLANG COBOL COFFEE D-CLANG D-DMD DART ELIXIR ERL FANTOM FORTH GOSU GRV JS-RHINO JS-MONKEY JULIA KTLN NIM NODEJS OBJC OBJC-CLANG OCT PERL6 PICO PROLOG PYPY PYPY3 PY_NBC R RACKET RUST CHICKEN SQLITE SWIFT UNLAMBDA VB.NET

hide comments
2020-09-22 15:58:43
import math
a = input()
a = float(a)
a = a + 1
x = math.fmod(a,2.0)
x = x-1
c = x * -1
print("{:.1f}".format(c*x+1))
2013-04-21 06:38:49 B19
hvmvvs yagaad hariug ni tawij uguud baigan be!!!
2012-12-28 13:54:13 bat
hi my ilgeesen bodlogo horbuuleltiin aldaa gej garch ireed bna aa.
cpp hel songood yabuulhaar bolohgui bna aa.pls...
#include<iostream.h>
main()
{
float a,b,k,j,l;
cout<<"a,b=";cin>>a>>b;
j=a+b;
l=a-b;
k=a*b;
cout<<j<<" "<<l<<" "<<k;
cin.get();
cin.get();

}
2012-11-28 07:18:00 bmb
#include<stdio.h>
#include<math.h>
#include<stdlib.h>
main(){
double a;
scanf("%lf", &a);
a=a+1;
double x=fmod(a, 2.0);
x=x-1;
printf("%.1f", -x*x+1);
return 0;
system("pause");
}
2012-11-03 15:21:10 Tso .
#include<stdio.h>
#include<math.h>
#include<stdlib.h>
main(){
double a;
scanf("%lf", &a);
a=a+1;
double x=fmod(a, 2.0);
x=x-1;
printf("%.1f", -x*x+1);
return 0;
system("pause");
}
2012-03-17 08:42:18 diedline
#include<stdio.h>
#include<math.h>
#include<stdlib.h>
main(){
double a;
scanf("%lf", &a);
a=a+1;
double x=fmod(a, 2.0);
x=x-1;
printf("%.1f", -x*x+1);
return 0;
system("pause");
}


2010-04-15 14:02:05 Batzorig
iim bodlogiig yaj boddiin zaagaad ogooch pls !!! :P
2010-03-21 05:08:20 CSMS-Sw12d047
fear fear fear fear fear fear fear fear fear fear fear fear fear fear fear fear fear fear fear fear
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