CN-13: Google search sahi tareeke se kaise karein?

✅ Seedha Jawab

Search engine ke programs pehle se arabon web pages padh kar ek badi index bana lete hain: kaunsa shabd kis page pe hai. Aap search karte ho, toh woh is index mein aapke shabd dhoondhta hai aur sabse kaam ke pages upar dikhata hai. Sahi tareeka: 2-5 zaroori shabd (keywords) likho, zaroorat ho toh “quotes”, minus (-) aur site: jaise chhote jaadu use karo, aur result ka source zaroor check karo.

🏠 Khud Karke Dekho: Search Detective Bano

Bhaag 1 (phone ya computer pe, ghar ke kisi bade ke saath): sirf search karna aur dekhna hai, kuch download ya login nahi karna. Har step ke baad copy mein note karo ki pehle 3 results kis baare mein the.

Bhaag 2 (code se apna chhota search engine): CharuMam AI Tutor kholo: tutor.charumam.com → 🐍 Python → Practice Karo tab. Yeh code type karo aur Run dabao. Isme teen chhote “pages” hain; code unki index banata hai aur minus (-) wala jaadu bhi chalata hai (yeh ek seedha-saadha model hai):

# teen chhote "web pages" (sirf example ke liye)
pages = {
    "Page 1": "chai banane ki aasaan recipe adrak wali",
    "Page 2": "photosynthesis kya hai class 8 science notes",
    "Page 3": "class 8 science photosynthesis video aur quiz",
}
# khaali index: har shabd ke saamne pages ki list
index = {}
# har page ko ek-ek karke lo
for naam in pages:
    # page ke text ko alag-alag shabdon mein todo
    for shabd in pages[naam].split():
        # agar yeh shabd index mein pehli baar aaya
        if shabd not in index:
            # toh uske liye ek khaali list banao
            index[shabd] = []
        # page ka naam us shabd ki list mein jodo
        index[shabd].append(naam)
# dekho index mein "photosynthesis" kin pages mein hai
print("photosynthesis ->", index["photosynthesis"])
# user ka search (minus wala shabd nahi chahiye)
sawaal = "Class 8 Photosynthesis -video"
# har page ka score 0 se shuru karo
score = {}
# har page ke liye
for naam in pages:
    # score zero rakho
    score[naam] = 0
# search ke har shabd ko chhote akshar mein karke dekho
for shabd in sawaal.lower().split():
    # agar shabd minus se shuru hota hai
    if shabd.startswith("-"):
        # minus hata ke asli shabd lo
        asli = shabd[1:]
        # jin pages mein yeh shabd hai, unhe bahar karo
        for naam in index.get(asli, []):
            # bahut kam score, taaki result mein na aaye
            score[naam] = -100
    # warna yeh normal shabd hai
    else:
        # jin pages mein yeh shabd hai
        for naam in index.get(shabd, []):
            # unka score 1 badhao
            score[naam] = score[naam] + 1
# results print karo
print("Search:", sawaal)
# har page ko dekho
for naam in pages:
    # sirf woh page jinka score 0 se zyada hai
    if score[naam] > 0:
        # page ka naam aur score dikhao
        print("Result:", naam, "| score", score[naam])

Output aayega:

photosynthesis -> ['Page 2', 'Page 3']
Search: Class 8 Photosynthesis -video
Result: Page 2 | score 3

Kya seekha: “Class” aur “Photosynthesis” capital mein the, phir bhi mil gaye, kyunki code ne sab kuch lower() se chhote akshar mein badal diya (asli search engine bhi capital-small ka farak nahi maanta). Page 3 mein bhi teeno shabd the, par usme video tha, isliye -video ne use hata diya. Aur chai wala Page 1 ka score 0 raha.

Ab aap: (1) sawaal mein se -video hata do, yaani sawaal = “Class 8 Photosynthesis”. Ab kitne results aaye? (Jawab: Page 2 aur Page 3, dono ka score 3.) (2) sawaal = “adrak chai” karke chalao: kaunsa page aaya?