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s 是否能由 n 个连续的数相加。bool f(int s,int n){
if(n%2==1){
return s%(n)==0?1:0;
}else{
return ((s%(n/2)==0) && (s/(n/2))%2==1)?1:0;
}
}
嘿嘿,这样其实感觉复杂度还是挺高的。
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