Line 40: SyntaxError: Identifier 'PriorityQueue' has already been declared
Line 40 in solution.js
class PriorityQueue {
SyntaxError: Identifier 'PriorityQueue' has already been declared
    at Object.compileFunction (node:vm:352:18)
    at wrapSafe (node:internal/modules/cjs/loader:1031:15)
    at Module._compile (node:internal/modules/cjs/loader:1065:27)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:17:47
Result: 0/25 tests passed
Input: [1,7,11],[2,4,6],3
Expected: [[1,2],[1,4],[1,6]]