Problem Type : Ad Hoc
#include<stdio.h>
int main()
{
int n;
while(scanf("%d",&n)==1)
{
if(n==0)
break;
int c=0;
while(n>=3)
{
n=n-3;
c++;
n=n+1;
}
if(n==2)
{
c++;
printf("%d\n",c);
}
else
printf("%d\n",c);
}
return 0;
}
#include<stdio.h>
int main()
{
int n;
while(scanf("%d",&n)==1)
{
if(n==0)
break;
int c=0;
while(n>=3)
{
n=n-3;
c++;
n=n+1;
}
if(n==2)
{
c++;
printf("%d\n",c);
}
else
printf("%d\n",c);
}
return 0;
}
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