c++ - 2 dimensional array in pointers -

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  # शामिल हैं & lt; stdio.h & gt; शून्य मुख्य () {int a [] = {1, 2, 3, 4}; Int b [] = {5, 6, 7}; Int * p [2]; पी [0] = ए; पी [1] = और amp; बी + 1; प्रिंटफ़ ("% d \ n% d", & amp; पी [1] [0], पी [0] [1]); }   
 यहाँ  p  पॉइंटर्स के एक 1d सरणी है, फिर कैसे एक 2d सरणी  printf  स्टेटमेंट में उपयोग की जाती है इसके अलावा आउटपुट  1 2 ।   
 
 
 सबस्क्रिप्ट ऑपरेटर  [ ]  सूचक संकेतों के साथ-साथ सरणी अभिव्यक्तियों के लिए भी परिभाषित किया गया है (जो सर्वप्रथम लागू होने से पहले सूचक अभिव्यक्ति में कनवर्ट किया जाता है)।  
 अभिव्यक्ति  एक [i]  को  * (a + i)  के रूप में मूल्यांकन किया जाता है;  a  एक सूचक है, और  a + i  सरणी के  i  'th  तत्व  का पता देता है ( पॉइंटर अंकगणित को इंगित-टू टाइप पर आधारित है; यदि  a  एक  int  को इंगित करता है, तब  a + i   मैं  'th  int  एक  a  द्वारा इंगित किया गया है)।  
 तो संकेतकों की अपनी सरणी दी:  
  int * p [2];   
 अभिव्यक्ति  p [0]  में एक सूचक प्रकार है, ताकि आप परिणाम ऑफसेट और डीरेफर जोड़ सकते हैं:  * (p [0] + 1) , जो  p [0] [1]  लिखने के समान है।

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