maybe a floating point issue?

[czylabsonasa]

On Friday, 19 September 2025 at 10:25:37 UTC, Dennis wrote:
> On Friday, 19 September 2025 at 06:23:02 UTC, czylabsonasa 
> wrote:
>> I'm trying to solve a programming contest 
>> [problem](https://open.kattis.com/problems/anthony) in D. The 
>> almost identical solution in C++ got accepted, but I'm unable 
>> to find the issue in the D code...
>
> One difference between the C++ and D code is that your D code 
> expects each line to end with a newline character:
>
> ```D
>    for(i32 i=1;i<=A+C-1;i++){
>       readf("%f\n",p[i]);
>    }
> ```
>
> So if your input file is this:
>
> ```
> 1 1
> 0.500000
>
> ```
>
> Your C++ and D programs both output 0.500000. But if your input 
> file lacks the final empty line:
>
> ```
> 1 1
> 0.500000
> ```
>
> The C++ version still works, but D throws an exception:
>
> ```
> std/format/spec.d(569): parseToFormatSpec: Cannot find 
> character '
> ' in the input string.
> ```
>
> Perhaps change the D code to this:
>
> ```D
>    for(i32 i=1;i<=A+C-1;i++){
>       p[i] = readln().to!float;
>    }
> ```

Denis, thanks for your time, but if there would such an input 
file, then it would resulted in runtime error. Anyway, i tested 
with readf(" %d %d",...)+read(" %f",...) and no change it is 
wrong answer.