NISHIO Hirokazu
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XORは繰り上がりのない足し算
x + y = x \oplus y + 2(x \otimes y)
XOR
は繰り上がりのない足し算
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競技プログラミングで解法を思いつくための典型的な考え方
→
xor
×
偶奇
→
偶数と次の奇数のXORは1
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(C)NISHIO Hirokazu / Converted from
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11/23/2025, 6:13:34 PM
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