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@ -329,7 +329,9 @@ comments: true
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/* 二分查找:问题 f(i, j) */
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fn dfs(nums: &[i32], target: i32, i: i32, j: i32) -> i32 {
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// 若区间为空,代表无目标元素,则返回 -1
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if i > j { return -1; }
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if i > j {
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return -1;
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}
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let m: i32 = (i + j) / 2;
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if nums[m as usize] < target {
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// 递归子问题 f(m+1, j)
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