Codeforces.1110E.Magic Stones(˼· ²î·Ö)
¸ø¶¨³¤Îª$n$µÄÐòÁÐ$A_i$ºÍ$B_i$¡£Äã¿ÉÒÔ½øÐÐÈa56爆大奖在线娱乐â¶à´Î²Ù×÷£¬Ã¿´Î²Ù×÷ÈÎÑ¡Ò»¸ö$i\in[2,n-1]$£¬°Ñ$A_i$±ä³É$A_{i-1}+A_{i+1}-A_i$¡£
ÇóÄÜ·ñ½«ÐòÁÐ$A_i$±ä³É$B_i$¡£
$n\leq10^5$¡£
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attack is our red sun $$\color{red}{\boxed{\color{red}{attack\ is\ our\ red\ sun}}}$$ ------------------------------------------------------------------------------------------------------------------------
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attack is our red sun $$\color{red}{\boxed{\color{red}{attack\ is\ our\ red\ sun}}}$$ ------------------------------------------------------------------------------------------------------------------------
