OJ Board

Getting WA...plz help me out. :( #include<stdio.h>

int main()
{
float a,b;
char c;
while(scanf("%f %c %f",&a,&c,&b)==3)
{
if(a==0&&b==0) return 0;
float d,d1,d2,d3;
if(b==0)
{
if(a<=6) d=a*5*6;
else
d=(12-a)*5*6;
}
else
{
d1=b/2;
d2=b/5;
if(a==d2) d3=0;
else if(a>d2) d3=(a-d2)*5*6 ...

Why getting time limit...?? Check it out plz.. #include<stdio.h>

int main()
{
long long int a,i;
while(scanf("%lld",&a))
{
if(a==0) return 0;
long long int temp=a;
for(i=1;i<=a;i++)
{
if(a%i==0) temp=temp*(-1);
else continue;
}
if(temp<0) printf("yes\n");
else printf("no\n");
}
return ...

Getting wrong answer....Help me plz #include<stdio.h>

int main()
{
int num,i,m,j,k;
for(m=1;; m++)
{
scanf("%d",&num);
if(num==0) return 0;
int arr[num];
for(i=0; i<num; i++)
{
scanf("%d",&arr[i]);
}
int sum=0;
for(j=0; j<num; j++)
{
sum=sum+arr[j];
}
int size=sum/num;
int count=0 ...

Getting time limit....help me plz #include<stdio.h>

int main()
{
int a;
while(1)
{
scanf("%d",&a);
int count=a,p,q=a,add;
while(q>=3)
{
add=q/3;
p=q%3;
q=add+p;
count=count+add;
}
if(q==2) count++;
printf("%d\n",count);
}
return 0;
}

Why getting WA...??
plz help me out #include<stdio.h>

int main()
{
int test,i,a,j;
scanf("%d",&test);
for(i=1;i<=test;i++)
{
scanf("%d",&a);
int count=0,x=1;
for(j=0;x<a;j++)
{
x=x+x;
count++;

}
printf("Case %d: %d\n",i,count);

}
return 0;
}

Why wrong answer..?

#include<stdio.h>

int main()
{
unsigned int a,b;

for(;;)
{
scanf("%u %u",&a,&b);
if(a==0&&b==0) return 0;
if(a<b)
{
int temp=a;
a=b;
b=temp;
}
int i,j,k,x[10],y[10],p;
for(i=0; a>0; i++)
{
p=a/10;
x[i]=a%10;
a=p;
}
for(j=0; b>0; j++)
{
p=b/10;
y[j]=b%10 ...