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int lim = 0x12345678; int pp = 256;
for (int i = 1; (lim-pp) / ((64 + i) + pp) != 0; i++) {
    if (atan(i - ((i / lim) * lim)) > 1.55) // > ~50
        lim = (lim / 50) * 40;
    int foo = lim; // bar
    for (int j = 0; j < 0x123456; j++)
        foo ^= (j >> 3) | (j << 29); // tidy
    pp &= foo; // in 42-0
    if (lim - ((lim / i) * i) == 0) {
 ...

1
NR>1&&$0>0{x+=$0}END{print x}

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NR>1&&$0>0{x+=$0}END{print x}

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NR==1{y=$0}NR>1&&NR<=y&&$0>0{x+=$0}END{print x}

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NR==1{y=$0}NR>1&&NR<=y&&$0>0{x+=$0}END{print x}

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NR>1&&$0>=0{x+=$0}END{print x}

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$0=2^gsub([LDFT],1)

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$0=2^gsub(/[LDFT]/,1)

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$0=2^gsub(/[LDFT]/,)

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$0=2^gsub(/[LDFT]/)

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$0=2^gsub(/[LDFT]/,1)/2

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$0=2^split($0,a,[LDFT])/2

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2^split($0,a,/[LDFT]/)/2

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$0=2^split($0,a,/[LDFT]/)/2

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$0=2^split($0,a,"[LDFT]")>0

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$0=2^split($0,a,"[]LDFT")>0

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($0=2^split($0,a,"[]LDFT")>0

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{print 2^/LDFT//2}

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BEGIN{FS="[LDFT]"}{print 2^NF/2}

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2
BEGIN{FS="[LDFT]"}
{print 2^NF/2}

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2
{FS="[LDFT]"}
{print 2^NF/2}

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{FS="[LDFT]"}{print 2^NF/2}

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{FS="[LDFT]";print 2^NF/2}

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2
BEGIN{FS="[LDFT]"}
{print 2^NF/2}

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2
{FS="/[LDFT]/"}
{print 2^NF/2}

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BEGIN{FS="/[LDFT]/"}{print 2^NF/2}

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BEGIN{FS="/[LDFT]/"}{print 2^NF/2}

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/[LDFT]/{print 2^NF/2}

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BEGIN{FS=/[LDFT]/}{print 2^NF/2}

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BEGIN{FS=[LDFT]}{print 2^NF/2}