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| // @Title: 左右两边子数组的和相等 (左右两边子数组的和相等)
// @Author: 15816537946@163.com
// @Date: 2022-03-19 19:10:46
// @Runtime: 16 ms
// @Memory: 6 MB
func pivotIndex(nums []int) int {
var total, sum int
for _, v := range nums {
total+=v
}
for i, v := range nums {
if 2 *sum + v == total {
return i
}
sum += v
}
return -1
}
|