条件1说的是number of voters who did not respond "Favorable" for either candidate
按照答案的意思这个=总人数100-number of voters who respond "Favorable" to at least one candidate
可是一个投票者没有向任何一个候选人表示认可 除了不认可的情况不是还有not sure的态度吗?
可能有人对两个candidate都是not sure呀 那这种类型的voters就不符合who respond "Favorable" to at least one candidate 答案是不是漏掉了这种voters呀?