高校数学の質問スレ（医者・東大卒専用） Part438 (901ﾚｽ)
上下前次1-新

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44: 2024/08/15(木)10:18 ID:5ggTekS4(1/2) AAS
bWin <- function(x){# 1 beats 3, 3 beats 2, 2 beats 1
if(length(unique(x))!=2 ) return(0) # no winner
u=sort(unique(x))
if(all(u==c(1,2))) return(sum(x==2)) # how many winners who won by 2
if(all(u==c(2,3))) return(sum(x==3)) # how many winners who won by 3
if(all(u==c(1,3))) return(sum(x==1)) # how many winners who won by 1
}
省25

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上下前次1-新書関写板覧索設栞歴

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あと 857 ﾚｽあります
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