ACM-OnlineJudge

OIACMOJOJ

issue

SJTU Online Judge

ACMOnline JudgeOJOJ

• ,

• gcc3.4.81617OJgcc4.8187.1REWACE(AC )

• (OJ)Mental Disorder

  issue,pr~

516030910552 yyong119

OJ

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• YYHSOJ(since 2010) yyhsyy yyhsoj(yyhs)
• Vijos(since 2012) 1479773600 Vijos
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• POJ(since 2013) yyhsyy POJ
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• BZOJ

()

• if ((n & 1) == 0)
• <<|()index << 1index << 1 | 1
• ~y = -y - 1,x - yx + (~y) + 1

1

• 1x = x + 1, x += 1, x++, ++x
• ++x,x++, x += 1, x = x + 1(x).

• ,

memcpy(b, a, sizeof(a));
sort(b, b + n);
int cnt = unique(b, b + n) - b;
for (int i = 0; i < n; ++i)
    a[i] = lower_bound(b, b + cnt, a[i]) - b; // a[i]