On submission it is giving runtime_error - runtime-error

Question

t=int(input())
while t>0 :
c=0
n,h,y1,y2,e = list(map(int, input().split()))
for i in range(n):
x0,x1 = list(map(int, input().split()))
if x0==1 :
if x1 < h-y1:
e -= 1
else :
if y2 < x1 :
e -= 1
if e>0 :
c+=1
else :
break
print(c)
t-=1
It is passing the sample test cases but on submission, it is showing runtime error(NZEC) occurred.
Here is the link to the question: https://www.codechef.com/problems/PIPSQUIK

Answer 1

The problem is that you're reading the inputs and processing them simultaneously. So, a situation can arise in some test cases such that e<=0 but you still have some x0 x1 to read(i.e. i<n-1). In such cases, you'll break the loop because e<=0 and in next iteration of while loop, you'll try to read 5 values n,h,y1,y2,e = list(map(int, input().split())) but you'll receive only 2 values x0 x1 and hence it'll throw a ValueError: not enough values to unpack (expected 5, got 2) and hence it'll not pass all the test cases.
To fix this, just take all inputs first and then process them according to your current logic.
t=int(input())
while t>0 :
c=0
n,h,y1,y2,e = list(map(int, input().split()))
inputs = []
for i in range(n):
inputs.append(list(map(int, input().split())))
for inp in inputs:
x0,x1 = inp
if x0==1 :
if x1 < h-y1:
e -= 1
else :
if y2 < x1 :
e -= 1
if e>0 :
c+=1
else :
break
print(c)
t -= 1