How to write input code

Question

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https://code.sololearn.com/cuD04eAgLPFf/?ref=app
https://code.sololearn.com/cuD04eAgLPFf/?ref=app

Answer 1

Gururaj Rekhawar that won't work to check for positive or negative numbers, you can just use
if(n>0)
printf("its positive");
else
printf("its negative");

and follow what ~ swim ~ have explained too