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2025 TOI 初選
已公開!
2025 全國賽
已公開!
Problems
#string
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TopCoder
AC Ratio (user)
AC (submission)
1010
Prefix and Postfix
2006-CKsim-1st
CKsim
string
brute-force
94.8% (
400/422
)
49.5% (
495
/
1000
)