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文章作者:Tyan
博客:noahsnail.com | CSDN | 简书
class Solution {
public:
int arrangeCoins(int n) {
int k = 0;
while(n > 0) {
++k;
n -=k;
}
if(n == 0) {
return k;
}
return k - 1;
}
};