标签:Coins return form int 441 coins rows Arranging row
You have a total of n coins that you want to form in a staircase shape, where every k-th row must have exactly k coins.
Given n, find the total number of full staircase rows that can be formed.
n is a non-negative integer and fits within the range of a 32-bit signed integer.
Example 1:
n = 5 The coins can form the following rows: ¤ ¤ ¤ ¤ ¤ Because the 3rd row is incomplete, we return 2.
Example 2:
n = 8 The coins can form the following rows: ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ Because the 4th row is incomplete, we return 3.
class Solution {
public:
int arrangeCoins(int n) {
int row=1;
while(n>=row){
n=n-row;
row++;
}
return row-1;
}
};
标签:Coins,return,form,int,441,coins,rows,Arranging,row 来源: https://blog.csdn.net/lyw_321/article/details/96098918
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