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更新0018JAVA版本 

用例有一个是[1000000000,1000000000,1000000000,1000000000] -294967296
如果用int会越界，所以修改为long
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chenwingsing 2022-07-02 21:58:17 +08:00 committed by GitHub
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problems/0018.四数之和.md
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@ -153,7 +153,7 @@ class Solution {
int left = j + 1; int left = j + 1;
int right = nums.length - 1; int right = nums.length - 1;
while (right > left) { while (right > left) {
int sum = nums[i] + nums[j] + nums[left] + nums[right]; long sum = (long) nums[i] + nums[j] + nums[left] + nums[right];
if (sum > target) { if (sum > target) {
right--; right--;
} else if (sum < target) { } else if (sum < target) {