fn reverseRange(a: usize, b: usize, context: anytype) void a: usizeb: usizecontext399
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407fn reverseRange(a: usize, b: usize, context: anytype) void {
var i = a;
var j = b - 1;
while (i < j) {
context.swap(i, j);
i += 1;
j -= 1;
}
}