I don't how to solve runguard error?

I don’t know what is runguard error and how to solve that error. Please help me.

hi @goutampopli12,
start = 0 end = 100, step = 20
then start with 0 add 20 each time till 100
i.e 0,20,40,60,80,100

for implementation difficulties refer : https://ide.codingblocks.com/s/657591

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