## 11715 - Car

All about problems in Volume 117. If there is a thread about your problem, please use it. If not, create one with its number in the subject.

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sms.islam
New poster
Posts: 19
Joined: Sat Oct 10, 2009 10:28 am

### 11715 - Car

I have got WA for this problem.Is there any trick with that problem?

can anyone please send some spical input for this problem?

my algorithom()
{
while(scanf("%ld",&n)!=EOF)
{
if(n==1)
{
print desired result;
}

else if(n==1)
{
print desired result;
}

else if(n==1)
{
print desired result;
}
.................................................
}
}

whats wrong with that?

r2ro
New poster
Posts: 38
Joined: Thu Sep 25, 2008 9:26 am

### Re: 11715 : Car problem

Well, why are your conditional statements only if n == 1?

naseefcuet
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Posts: 2
Joined: Mon Jul 20, 2009 6:53 am

### Re: 11715 : Car problem

@sms.islam
post your code.....This is a simple problem....there should be some sill ymistakes in your code....

sms.islam
New poster
Posts: 19
Joined: Sat Oct 10, 2009 10:28 am

### Re: 11715 : Car problem

// Code removed cause Accepted

thanx naseefcuet i got it.
Last edited by sms.islam on Sun Nov 22, 2009 6:33 pm, edited 1 time in total.

naseef_07cuet
Learning poster
Posts: 62
Joined: Sat Nov 21, 2009 10:17 pm
Location: CUET,Chittagong,Bangladesh

### Re: 11715 : Car problem

@s.islam
check this code...and make the correction from your code:-:
read (c);
if(c==0)
break;
if(c==1)
read (u,v,t);
a=(v-u)/t;
s=(v*v-u*u)/(2*a);
if(c==2)
read(u,v,a);
t=(v-u)/a;
s=(v*v-u*u)/(2*a);
if(c==3)
read(u,a,s);
v=sqrt((u*u+2*a*s));
t=(v-u)/a;
else if(c==4)
read(v,a,s);
u=sqrt((v*v-2*a*s));
t=(v-u)/a;
Hope you will get it........
If you have determination, you can do anything you want....

Eather
New poster
Posts: 28
Joined: Thu Jan 28, 2010 2:23 pm

### Re: 11715 : Car problem

why WA?? i got AC with the same code once i submitted 1st time.

Code: Select all

``````#include<stdio.h>
#include<math.h>
#include<iostream>
using namespace std;

int main()
{
int n;
long double a, b, c;
int i = 1;
while ((scanf("%d %lf %lf %lf",&n,&a,&b,&c))==4)
{
if (n == 1)
{
long double res2 = (b-a)/c;
long double res1 = (a*c) + (0.5*res2*c*c);
printf("Case %d: %0.3lf %0.3lf\n", i, res1, res2);
}
if (n == 2)
{
long double res2 = (b-a)/c;
long double res1 = (a*res2) + (0.5*c*res2*res2);
printf("Case %d: %0.3lf %0.3lf\n", i, res1, res2);
}
if (n == 3)
{
long double res1 = sqrt(a*a + 2*b*c);
long double res2 = (res1-a)/b;
printf("Case %d: %0.3lf %0.3lf\n", i, res1, res2);
}
if (n == 4)
{
long double res1 = sqrt(a*a - 2*b*c);
long double res2 = (a-res1)/b;
printf("Case %d: %0.3lf %0.3lf\n", i, res1, res2);
}
i++;
}

}
``````
help me please

vkshibbir
New poster
Posts: 1
Joined: Tue Sep 06, 2011 6:49 pm

### Re: 11715 - Car

Why WA?

Code: Select all

``````#include<stdio.h>
#include<math.h>

int main()
{
int i;
int a;
double  b,c,d;
double  u,v,ac,s,t;
for(i=1;; i++)
{
scanf("%d",&a);
if(a==0)break;
scanf("%lf %lf %lf",&b,&c,&d);

printf("Case %d: ",i);

if(a==1)
{
u=b;
v=c;
t=d;
ac=(v-u)/t;
s=u*t+.5*ac*t*t;
printf("%.3lf %.3lf\n",s,ac);
}
if(a==2)
{
u=b;
v=c;
ac=d;
s=(v*v-u*u)/(2*ac);
t=(v-u)/a;
printf("%.3lf %.3lf\n",s,t);
}
if(a==3)
{
u=b;
ac=c;
s=d;
v=sqrt((u*u+2*ac*s));
t=(v-u)/ac;
printf("%.3lf %.3lf\n",v,t);
}
if(a==4)
{
v=b;
ac=c;
s=d;
u=sqrt(v*v-2*ac*s);
t=(v-u)/ac;
printf("%.3lf %.3lf\n",u,t);
}
}
return 0;
}``````
help me please

reza_uranium
New poster
Posts: 2
Joined: Fri Feb 01, 2013 4:12 pm

### Re: 11715 - Car

Why WA...plz help me

Code: Select all

``````#include <stdio.h>
#include <math.h>

int main()
{
int i,n;
double s,a,u,v,t;

for(i=1;;i++){
scanf("%d",&n);

if(n==0){
break;
}

if(n==1){
scanf("%lf %lf %lf",&u,&v,&t);

s=((u+v)/2.0)*t;
a=(v-u)/t;

printf("Case %d: %.3lf %.3lf\n",i,s,a);
}
if(n==2){
scanf("%lf %lf %lf",&u,&v,&a);

t=(v-u)/a;
s=u*t+.5*a*t*t;

printf("Case %d: %.3lf %.3lf\n",i,s,t);
}
if(n==3){
scanf("%lf %lf %lf",&u,&a,&s);

v=sqrt(2*a*s+u*u);
t=(v-u)/a;

printf("Case %d: %.3lf %.3lf\n",i,v,t);
}
if(n==4){
scanf("%lf %lf %lf",&v,&a,&s);

u=sqrt(u*u-2*a*s);
t=(v-u)/a;

printf("Case %d: %.3lf %.3lf\n",i,u,t);
}
}

return 0;
}``````

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

### Re: 11715 - Car

Input:

Code: Select all

``````3 6 1 6
4 5.0 -1 6
0``````
AC output:

Code: Select all

``````Case 1: 6.928 0.928
Case 2: 6.083 1.083
``````
Check input and AC output for thousands of problems on uDebug!

raj
Learning poster
Posts: 78
Joined: Fri Feb 15, 2013 5:39 pm

### Re: 11715 - Car

Deleted
Last edited by raj on Tue Mar 05, 2013 11:48 pm, edited 1 time in total.

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

### Re: 11715 - Car

See what happens with 10 or more input cases.
Check input and AC output for thousands of problems on uDebug!

raj
Learning poster
Posts: 78
Joined: Fri Feb 15, 2013 5:39 pm

### Re: 11715 - Car

thanks sir Now its accepted

liya
New poster
Posts: 10
Joined: Fri Jan 23, 2015 2:36 pm

### Re: 11715 - Car

WA.....what's wrong with this?

Code: Select all

``````#include<stdio.h>
#include<math.h>
int main()
{
double u,v,a,s,t,re;
int n,i;
for(i=1; ;i++)
{
scanf("%d",&n);
if(n==0)
{
break;
}
if(n==1)
{
scanf("%lf %lf %lf",&u,&v,&t);
a=(v-u)/t;
s=((v*v)-(u*u))/(2*a);
printf("Case %d: %.3lf %.3lf\n",i,s,a);

}
else if(n==2)
{
scanf("%lf %lf %lf",&u,&v,&a);
t=(v-u)/a;
s=((v*v)-(u*u))/(2*a);
printf("Case %d: %.3lf %.3lf\n",i,s,t);
}
else if(n==3)
{
scanf("%lf %lf %lf",&u,&a,&s);
v=sqrt((u*u)+(2*a*s));
t=(v-u)/a;
printf("Case %d: %.3lf %.3lf\n",i,v,t);

}
else if(n==4)
{
scanf("%lf %lf %lf",&v,&a,&s);
u=sqrt((v*v)-(2*a*s));
t=(v-u)/a;
printf("Case %d: %.3lf %.3lf\n",i,u,t);
}
}
return 0;
}``````
Last edited by brianfry713 on Tue Jan 27, 2015 9:24 pm, edited 1 time in total.
Reason: Added code blocks

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

### Re: 11715 - Car

That is AC code.
Check input and AC output for thousands of problems on uDebug!

liya
New poster
Posts: 10
Joined: Fri Jan 23, 2015 2:36 pm

### Re: 11715 - Car

thanks brianfry713