Div1 A are counted as A rather than Div2 C

[damsehgal]

During the past week, I noted that after solving following problems

601A Div1

687A Div1

282C Div2

687B Div1

442B Div1

340D Div2

671A Div1,

number of A increased by 3, and there was no increase in number of C solved.

[sjsakib]

What about B and D? Would you share your handle? Probably 282C appeared in Div1 in another index.

[damsehgal]

Same issue with B and D.
My handle is dam_sehgal

I found that 601A is same as 602C. I submit my code for 602C and count of C increased. It is counting same problem twice. Have a look here