cf/mirror

Primes in Interval

CF
661F1900· candidate master2s64 MB⌨ stdin/stdout
#*special

Examples

Sample 1of 3
Input
10 20
Output
4
Sample 2of 3
Input
23 23
Output
1
Sample 3of 3
Input
271 566
Output
46
661F.cpp
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Ln 11·137 BGNU C++20 (64)