When I run the below code in other platforms, for the sample input and
output, it is running fine. But when I submit the above code in the
competition, it is showing me *RUNTIME Error*. Can someone help me with why
I'm facing this problem?
t = int(input())
for _ in range(t):
n = int(input()) #n is basically size
s1 = '' #s1 is the output string
flag = 1 #flag pointer is to check whether it is
impossible or not.
J, C = [],[] # J and C are lists for activities performed
by Jamie and Cameron
for i in range(n):
s,e = map(int, input().strip().split()) #s,e are start and end timings
of new activity
j_inc , c_inc = 0, 0
if(J==[]): #this is for first activity which we
can directly assign to J
J.extend([s,e])
s1+='J'
elif(C==[]): #this is for second activity which we
can directly assign to C
C.extend([s,e])
s1+='C'
else: # for all other cases
j=0 # in these cases, J,C are in the form of
[sm,em,sk,ek,sl,el.........] where m,k,l are natural numbers
c=0
while(j<len(J)//2): #loop works till new activity is not messing
with other activities in J
if((s>=J[2*j+1] and e>=J[2*j+1]) or (s<=J[2*j] and e<=J[2*j])):
j_inc+=1
else:
while(c<len(C)//2): #loop works till new activity is not
messing with other activities in C
if((s>=C[2*c+1] and e>=C[2*c+1]) or (s<=C[2*c] and
e<=C[2*c])):
c_inc+=1
else: #if it messes with both, it should break from
loop and flag is set to 0
flag = 0
break;
c+=1
j+=1
if(flag==0): #to break from J loop if it already broke from C
loop
break
if(flag==0):
s1 = 'IMPOSSIBLE'
break
elif(j_inc==len(J)//2): #if all activities in J are checked and
if new activity still doesn't mess
J.extend([s,e])
s1+='J'
elif(c_inc==len(C)//2): #if all activities in C are checked and if
new activity still doesn't mess
C.extend([s,e])
s1+='C'
print("Case #"+str(i+1)+": "+s1)
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