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i < coalData.length; i++) {\n if (combo[i] === 0) continue;\n const w = weighted ? coalData[i].weightPerShovel : 1;\n tw += w * combo[i];\n cal += coalData[i].calorie * w * combo[i];\n sul += coalData[i].sulfur * w * combo[i];\n ash += coalData[i].ash * w * combo[i];\n water += coalData[i].water * w * combo[i];\n vol += coalData[i].volatile * w * combo[i];\n cost += coalData[i].price * combo[i];\n }\n if (tw === 0) return null;\n const avgCal = Math.round(cal / tw),\n avgSul = sul / tw,\n avgAsh = ash / tw,\n avgWater = water / tw,\n avgVol = vol / tw;\n if (\n avgCal < calMin || avgCal > calMax || avgSul < sulMin || avgSul > sulMax\n ) return null;\n if (\n avgAsh < ashMin || avgAsh > ashMax || avgWater < waterMin ||\n avgWater > waterMax\n ) return null;\n if (avgVol < volMin || avgVol > volMax) return null;\n let maxTons = 0, tbw = 0;\n const dem = [];\n for (let i = 0; i < coalData.length; i++) {\n if (combo[i] === 0) continue;\n const w = weighted ? coalData[i].weightPerShovel : 1;\n dem.push({ idx: i, need: w * combo[i] });\n tbw += w * combo[i];\n }\n if (tbw > 0) {\n let mb = Infinity;\n for (const d of dem) {\n const s = coalData[d.idx].stock;\n if (s <= 0) {\n mb = 0;\n break;\n }\n mb = Math.min(mb, Math.floor(s / d.need));\n }\n maxTons = Math.round(mb * tbw * 100) / 100;\n }\n return {\n totalShovels: combo.reduce((a, b) => a + b, 0),\n combo,\n avgCalorie: avgCal,\n avgSulfur: Math.round(avgSul * 1e4) / 1e4,\n avgAsh: Math.round(avgAsh * 100) / 100,\n avgWater: Math.round(avgWater * 100) / 100,\n avgVolatile: Math.round(avgVol * 100) / 100,\n totalCost: Math.round(cost * 100) / 100,\n maxTonnage: maxTons,\n };\n}\n\nfunction branchAndBound(coalData, params) {\n const {\n maxShovels,\n calorieMin,\n calorieMax,\n sulfurMin,\n sulfurMax,\n ashMin,\n ashMax,\n waterMin,\n waterMax,\n volatileMin,\n volatileMax,\n useWeighted,\n } = params;\n const sulMin = sulfurMin !== \"\" ? +sulfurMin : -Infinity,\n sulMax = sulfurMax !== \"\" ? +sulfurMax : Infinity;\n const ashMin_ = ashMin !== \"\" ? +ashMin : -Infinity,\n ashMax_ = ashMax !== \"\" ? +ashMax : Infinity;\n const waterMin_ = waterMin !== \"\" ? +waterMin : -Infinity,\n waterMax_ = waterMax !== \"\" ? +waterMax : Infinity;\n const volMin = volatileMin !== \"\" ? +volatileMin : -Infinity,\n volMax = volatileMax !== \"\" ? +volatileMax : Infinity;\n const constraints = [\n calorieMin,\n calorieMax,\n sulMin,\n sulMax,\n ashMin_,\n ashMax_,\n waterMin_,\n waterMax_,\n volMin,\n volMax,\n ];\n const indices = Array.from({ length: coalData.length }, (_, i) => i).sort((\n a,\n b,\n ) => coalData[a].price - coalData[b].price);\n const sortedCoals = indices.map((i) => coalData[i]);\n const minPrices = [];\n let minPP = Infinity;\n for (let i = sortedCoals.length - 1; i >= 0; i--) {\n if (sortedCoals[i].price < minPP) minPP = sortedCoals[i].price;\n minPrices[i] = minPP;\n }\n let totalCombos = 0;\n const allResults = [];\n for (let n = 1; n <= maxShovels; n++) {\n let upperBound = Infinity;\n const greedy = (() => {\n const combo = Array(sortedCoals.length).fill(0);\n let rem = n;\n for (let i = 0; i < sortedCoals.length && rem > 0; i++) {\n combo[i] = rem;\n const r = evaluateCombo(sortedCoals, combo, useWeighted, constraints);\n if (r) {\n rem = 0;\n break;\n }\n combo[i] = 0;\n }\n return rem > 0\n ? null\n : evaluateCombo(sortedCoals, combo, useWeighted, constraints);\n })();\n if (greedy) upperBound = greedy.totalCost;\n const current = Array(sortedCoals.length).fill(0);\n (function dfs(idx, rem, curCost) {\n if (rem === 0) {\n const r = evaluateCombo(sortedCoals, current, useWeighted, constraints);\n if (r && r.totalCost < upperBound) {\n upperBound = r.totalCost;\n allResults.push({ ...r, combo: current.slice() });\n totalCombos++;\n }\n return;\n }\n if (idx === sortedCoals.length - 1) {\n current[idx] = rem;\n const r = evaluateCombo(sortedCoals, current, useWeighted, constraints);\n if (r && r.totalCost < upperBound) {\n upperBound = r.totalCost;\n allResults.push({ ...r, combo: current.slice() });\n totalCombos++;\n }\n current[idx] = 0;\n return;\n }\n const minCost = minPrices[idx + 1] || 0;\n for (let k = 0; k <= rem; k++) {\n current[idx] = k;\n const est = curCost + k * sortedCoals[idx].price + (rem - k) * minCost;\n if (est >= upperBound) {\n current[idx] = 0;\n continue;\n }\n dfs(idx + 1, rem - k, curCost + k * sortedCoals[idx].price);\n }\n current[idx] = 0;\n })(0, n, 0);\n }\n return {\n totalCombos,\n filteredCount: allResults.length,\n allResults: allResults.map((r) => {\n const orig = Array(coalData.length).fill(0);\n indices.forEach((oidx, sidx) => {\n orig[oidx] = r.combo[sidx];\n });\n return { ...r, combo: orig };\n }),\n };\n}\n\nexport default async function (req) {\n if (req.method === \"OPTIONS\") {\n return new Response(null, {\n status: 204,\n headers: {\n \"Access-Control-Allow-Origin\": \"*\",\n \"Access-Control-Allow-Methods\": \"POST, OPTIONS\",\n \"Access-Control-Allow-Headers\": \"Content-Type, Authorization\",\n },\n });\n }\n\n const auth = req.headers.get(\"Authorization\");\n if (auth !== `Bearer ${VALID_TOKEN}`) {\n return new Response(JSON.stringify({ error: \"未授权\" }), {\n status: 403,\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\",\n },\n });\n }\n\n try {\n const data = await req.json();\n const { coalData, params, topN, currentSort } = data;\n const start = Date.now();\n const result = branchAndBound(coalData, params);\n const elapsed = Date.now() - start;\n const all = result.allResults;\n if (currentSort === \"cost\") all.sort((a, b) => a.totalCost - b.totalCost);\n else if (currentSort === \"tonnage\") {\n all.sort((a, b) => b.maxTonnage - a.maxTonnage);\n } else {all.sort((a, b) =>\n (a.totalCost / a.maxTonnage) - (b.totalCost / b.maxTonnage)\n );}\n\n return new Response(\n JSON.stringify({\n totalCombos: result.totalCombos,\n filteredCount: result.filteredCount,\n elapsed,\n allResults: all,\n topResults: all.slice(0, topN),\n }),\n {\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\",\n },\n },\n );\n } catch (e) {\n return new Response(JSON.stringify({ error: e.message }), {\n status: 500,\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\",\n },\n });\n }\n}","createdAt",["D",1777550300029],"branchVersion","branchId","24f0f264-447a-11f1-9b37-42b51c65c3df","id","24f01dc6-447a-11f1-9b37-42b51c65c3df","untitled-6885",["D",1777542682160],"deletedAt","legacyEnvVars",false,"privacy","public","httpPrivacy","description","imageUrl","4b999dd5-2eec-4869-940b-b6b0c952533c","pinnedFileId","pinPreview","pinMigrated","screenshotVersion","likeCount",0,"orgId","019dddc8-1737-70a8-aa77-32932668241e","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_94":93,"_101":96},"org",{"_94":93,"_95":96,"_97":96,"_18":54,"_98":99,"_100":48},"branch",{"_13":83,"_32":84,"_42":41,"_85":43,"_86":-5,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":44,"_92":93},"isOwned",13,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","pwmw","handle","displayName","","avatar","tier","free","canRestrictVals","profileImageUrl","branchName","adoptOrgId",{"_42":43,"_32":44,"_37":152,"_46":-5,"_47":48,"_49":50,"_51":50,"_52":-5,"_53":-5,"_18":54,"_55":-5,"_56":48,"_57":-5,"_58":-5,"_59":60,"_61":62,"_63":-5,"_64":-5,"_65":-5,"_66":-5,"_67":68,"_69":68,"_70":71,"_72":71,"_73":71,"_74":68,"_75":68,"_76":153,"_78":154,"_80":155,"_82":48},"tree",[147],"files",[147],"counts",{"_136":60,"_137":138,"_139":60,"_140":141,"_142":143},"contents",[123],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_42":124,"_32":125,"_30":126,"_127":-5,"_40":41,"_39":128,"_129":25,"_37":130,"_13":131,"_33":132,"_35":133,"_24":48,"_134":-5,"_27":135},"96e36b0a-4488-11f1-9013-42b51c65c3df","new-file-5644.ts","32b5ab4c-447a-11f1-9524-42b51c65c3df","parentId",6,"latest",["D",1777548886269],3,"script","const VALID_TOKEN = \"9876543210\";\n\nfunction evaluateCombo(coalData, combo, weighted, constraints) {\n const [calMin, calMax, sulMin, sulMax, ashMin, ashMax, waterMin, waterMax, volMin, volMax] = constraints;\n let tw=0, cal=0, sul=0, ash=0, water=0, vol=0, cost=0;\n for (let i=0; i calMax || avgSul < sulMin || avgSul > sulMax) return null;\n if (avgAsh < ashMin || avgAsh > ashMax || avgWater < waterMin || avgWater > waterMax) return null;\n if (avgVol < volMin || avgVol > volMax) return null;\n let maxTons = 0, tbw = 0;\n const dem = [];\n for (let i=0; i 0) {\n let mb = Infinity;\n for (const d of dem) {\n const s = coalData[d.idx].stock;\n if (s <= 0) { mb = 0; break; }\n mb = Math.min(mb, Math.floor(s/d.need));\n }\n maxTons = Math.round(mb*tbw*100)/100;\n }\n return {totalShovels: combo.reduce((a,b)=>a+b,0), combo, avgCalorie: avgCal, avgSulfur: Math.round(avgSul*1e4)/1e4, avgAsh: Math.round(avgAsh*100)/100, avgWater: Math.round(avgWater*100)/100, avgVolatile: Math.round(avgVol*100)/100, totalCost: Math.round(cost*100)/100, maxTonnage: maxTons};\n}\n\nfunction branchAndBound(coalData, params) {\n const {maxShovels, calorieMin, calorieMax, sulfurMin, sulfurMax, ashMin, ashMax, waterMin, waterMax, volatileMin, volatileMax, useWeighted} = params;\n const sulMin = sulfurMin!==''?+sulfurMin:-Infinity, sulMax = sulfurMax!==''?+sulfurMax:Infinity;\n const ashMin_ = ashMin!==''?+ashMin:-Infinity, ashMax_ = ashMax!==''?+ashMax:Infinity;\n const waterMin_ = waterMin!==''?+waterMin:-Infinity, waterMax_ = waterMax!==''?+waterMax:Infinity;\n const volMin = volatileMin!==''?+volatileMin:-Infinity, volMax = volatileMax!==''?+volatileMax:Infinity;\n const constraints = [calorieMin, calorieMax, sulMin, sulMax, ashMin_, ashMax_, waterMin_, waterMax_, volMin, volMax];\n const indices = Array.from({length: coalData.length}, (_,i)=>i).sort((a,b)=>coalData[a].price - coalData[b].price);\n const sortedCoals = indices.map(i=>coalData[i]);\n const minPrices = [];\n let minPP = Infinity;\n for (let i=sortedCoals.length-1; i>=0; i--) {\n if (sortedCoals[i].price < minPP) minPP = sortedCoals[i].price;\n minPrices[i] = minPP;\n }\n let totalCombos = 0;\n const allResults = [];\n for (let n=1; n<=maxShovels; n++) {\n let upperBound = Infinity;\n const greedy = (()=>{\n const combo = Array(sortedCoals.length).fill(0);\n let rem = n;\n for (let i=0; i0; i++) {\n combo[i] = rem;\n const r = evaluateCombo(sortedCoals, combo, useWeighted, constraints);\n if (r) { rem=0; break; }\n combo[i] = 0;\n }\n return rem>0 ? null : evaluateCombo(sortedCoals, combo, useWeighted, constraints);\n })();\n if (greedy) upperBound = greedy.totalCost;\n const current = Array(sortedCoals.length).fill(0);\n (function dfs(idx, rem, curCost) {\n if (rem === 0) {\n const r = evaluateCombo(sortedCoals, current, useWeighted, constraints);\n if (r && r.totalCost < upperBound) {\n upperBound = r.totalCost;\n allResults.push({...r, combo: current.slice()});\n totalCombos++;\n }\n return;\n }\n if (idx === sortedCoals.length-1) {\n current[idx] = rem;\n const r = evaluateCombo(sortedCoals, current, useWeighted, constraints);\n if (r && r.totalCost < upperBound) {\n upperBound = r.totalCost;\n allResults.push({...r, combo: current.slice()});\n totalCombos++;\n }\n current[idx] = 0;\n return;\n }\n const minCost = minPrices[idx+1] || 0;\n for (let k=0; k<=rem; k++) {\n current[idx] = k;\n const est = curCost + k*sortedCoals[idx].price + (rem-k)*minCost;\n if (est >= upperBound) { current[idx]=0; continue; }\n dfs(idx+1, rem-k, curCost + k*sortedCoals[idx].price);\n }\n current[idx] = 0;\n })(0, n, 0);\n }\n return {totalCombos, filteredCount: allResults.length, allResults: allResults.map(r=>{\n const orig = Array(coalData.length).fill(0);\n indices.forEach((oidx, sidx)=>{ orig[oidx] = r.combo[sidx]; });\n return {...r, combo: orig};\n })};\n}\n\nexport default async function(req) {\n // 处理预检请求\n if (req.method === \"OPTIONS\") {\n return new Response(null, {\n status: 204,\n headers: {\n \"Access-Control-Allow-Origin\": \"*\",\n \"Access-Control-Allow-Methods\": \"POST, OPTIONS\",\n \"Access-Control-Allow-Headers\": \"Content-Type, Authorization\"\n }\n });\n }\n\n const auth = req.headers.get(\"Authorization\");\n if (auth !== `Bearer ${VALID_TOKEN}`) {\n return new Response(JSON.stringify({ error: \"未授权\" }), {\n status: 403,\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\"\n }\n });\n }\n\n try {\n const data = await req.json();\n const { coalData, params, topN, currentSort } = data;\n const start = Date.now();\n const result = branchAndBound(coalData, params);\n const elapsed = Date.now() - start;\n const all = result.allResults;\n if (currentSort === 'cost') all.sort((a,b)=>a.totalCost-b.totalCost);\n else if (currentSort === 'tonnage') all.sort((a,b)=>b.maxTonnage-a.maxTonnage);\n else all.sort((a,b)=>(a.totalCost/a.maxTonnage)-(b.totalCost/b.maxTonnage));\n \n return new Response(JSON.stringify({\n totalCombos: result.totalCombos,\n filteredCount: result.filteredCount,\n elapsed,\n allResults: all,\n topResults: all.slice(0, topN)\n }), {\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\"\n }\n });\n } catch (e) {\n return new Response(JSON.stringify({ error: e.message }), {\n status: 500,\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\"\n }\n });\n }\n}","label",[125],"pulls","branches",1,"forks","envVars",{"_144":60,"_146":60},"connections",{"_144":60,"_145":60},"count","unfilledCount","emptyCount",{"_42":124,"_32":125,"_30":126,"_127":-5,"_40":41,"_39":128,"_129":25,"_37":148,"_13":131,"_33":132,"_35":133,"_24":48,"_134":-5,"_149":150,"_27":151},["D",1777548886269],"children",[],[125],["D",1777542682160],{"_94":93,"_101":96},{"_94":93,"_95":96,"_97":96,"_18":54,"_98":99,"_100":48},{"_13":83,"_32":84,"_42":41,"_85":43,"_86":-5,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":44,"_92":93},"ctx",{"_76":-5,"_120":189,"_190":191,"_192":193,"_194":48,"_195":48,"_196":48,"_197":25,"_198":-5,"_199":-7,"_200":-7,"_201":60,"_202":48,"_203":48,"_204":-5,"_205":48,"_206":48,"_207":48,"_208":-5},"ENV",{"_160":161,"_162":163,"_164":84,"_165":166,"_167":168,"_169":170,"_171":172,"_173":174,"_175":176,"_177":178,"_179":180,"_181":182,"_183":184,"_185":186,"_187":188},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v10