("{}", lookup_table[index]); | ^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `std::slice::SliceIndex<[u8]>` is not implemented for `u8` = note: required because of the requirements on the impl of `std::ops::Index` for `[u8]` 虽然这可...
Line 9, Char 34: the type `[i32]` cannot be indexed by `i32` (solution.rs) | 9 | let mut newAdd = nums1[i]; | ^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[i32]>` is not implemented for `i32` = note: required because ...
| ^^^ string indices are ranges of `usize` | = help: the trait `std::slice::SliceIndex<str>` is not implemented for `{integer}` = note: you can use `.chars().nth()` or `.bytes().nth()` see chapter in The Book <https://doc.rust-lang.org/book/ch08-02-strings.html#index...
("{}", vec2d[row][col]); | ^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `std::slice::SliceIndex<[std::vec::Vec<u8>]>` is not implemented for `u8` = note: required because of the requirements on the impl of `s...
Error:slice indices are of typeusizeor ranges ofusize However, if I change all vectors to typeusize, then Itertools throws an error on themap_intomethod: the traitFrom<Vec>is not implemented forVec<usize>. How can I make Itertools and slice indices cooperate? u128to ...
error[E0277]: the type `[[u8; 3]]` cannot be indexed by `u8` --> src/main.rs:13:9 | 13 | self.grid[m.x][m.y] = 1; | ^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[[u8; 3]]>` is not implemented for `u8` = not...
Another hint: You can use the `map_err` method of `Result` with a function or a closure to wrap the error from `parse::<usize>`. Yet another hint: If you would like to propagate errors by using the `?` operator in your solution, you might want to look at https://doc.rust-...
lets:String=scan.next();letv:Vec<bool>=s.chars().map(|ch|ch==‘1’).collect(); My 1168C submission features the following rather magical line: let(zero_bits,one_bits):(Vec<usize>,Vec<usize>)=(0..BITS).partition(|b|(ai&(1usize<...
// the virtual address whose corresponding page tables you want to accessletaddr:usize= […];letr =0o777;// recursive indexletsign =0o177777<<48;// sign extension// retrieve the page table indices of the address that we want to translateletl4_idx = (addr >>39)&0o777;// level 4...
总的来说,rust/src/tools/rust-analyzer/crates/ide/src/folding_ranges.rs这个文件中的Fold结构体、Foo trait和FoldKind枚举都是用来实现代码折叠功能的,通过定义和处理代码折叠的行为和逻辑,使得Rust Analyzer工具能够识别和操作代码中的折叠范围,从而提供更好的代码浏览和组织体验。