【题目】
Given an array of n positive integers and a positive integer s, find the minimal length of a contiguous subarray of which the sum ≥ s. If there isn't one, return 0 instead.
For example, given the array [2,3,1,2,4,3] and s
= 7,
the subarray [4,3] has the minimal length under the problem constraint.
方法一:
public class Solution {
public int minSubArrayLen(int s, int[] nums) {
int min = nums.length+1;
int sum=0;
int count=0;
for(int i=0;i<nums.length;i++){
sum+=nums[i];
count++;
if(sum>=s){
while(sum>=s){
min=count>min?min:count;
sum=sum-nums[i-count+1];
count--;
}
}
}
return min>nums.length?0:min;
}
}【参考】
https://leetcode.com/problems/minimum-size-subarray-sum/#/solution
本文介绍了一种解决最小子数组和问题的方法,该问题要求在给定正整数数组中找到满足总和大于等于特定值的最小子数组长度。通过一个具体的示例,展示了如何使用滑动窗口技术来高效地解决这个问题。
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