How to fix all kind of error s is thier any solution

Question

Is thier any one who explain errors occurs in code eg. Run time error, time limit exided etc why they occurs and how to overcome

Answer 1

When run time errors occurred

Answer 2

t=int(input(""))
while (t>0):
a=int(input(""))
b=int(input(""))
r=int(a%b)
print(r)
t=t-1

Answer 3

In this program , where run time error occurred

Answer 4

I am try it on codechef ide ,for others it works bt in codechef ide it shows run time error , why this happened ?

Answer 5

On Sololearn you have to do all the inputs at the beginning, you have no genuine runtime mode. Your code requires a flexible input, so that doesn't work.