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{"id":2652,"date":"2021-08-28T17:26:14","date_gmt":"2021-08-28T17:26:14","guid":{"rendered":"https:\/\/www.wikitechy.com\/interview-questions\/?p=2652"},"modified":"2021-09-03T05:45:29","modified_gmt":"2021-09-03T05:45:29","slug":"ravi-and-rupali-are-asked-to-write-a-program-to-sum-the-rows-of-2x2-matrices-stored-in-the-array-a","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/interview-questions\/recursion-and-iteration\/ravi-and-rupali-are-asked-to-write-a-program-to-sum-the-rows-of-2x2-matrices-stored-in-the-array-a\/","title":{"rendered":"Ravi and Rupali are asked to write a program to sum the rows of 2X2 matrices stored in the array A..?"},"content":{"rendered":"<div class=\"TextHeading\">\n<div class=\"hddn\">\n<p class=\"color-pink\">Ravi and Rupali are asked to write a program to sum the rows of 2X2 matrices stored in the array A.<br \/>\nRavi writes the following code (Code A):<\/p>\n<pre> for n = 0 to 1 \r\n sumRow1[n] = A[n][1] + A[n][2]\r\n end<\/pre>\n<p class=\"color-pink\">Rupali writes the following code (Code B):<\/p>\n<pre>sumRow1[0] = A[0][1] + A[0][2] \r\nsumRow1[1] = A[1][1] + A[1][2]<\/pre>\n<p>Comment upon these codes (Assume no loop unrolling done by compiler) ?<\/p>\n<div class=\"row\">\n<div class=\"col-sm-6\">\n<p>A. Code a will execute faster than b.<\/p>\n<\/div>\n<div class=\"col-sm-6\">\n<p>B. Code b will execute faster than a.<\/p>\n<\/div>\n<div class=\"col-sm-6\">\n<p>C. Code a is logically incorrect.<\/p>\n<\/div>\n<div class=\"col-sm-6\">\n<p>D. Code b is logically incorrect<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3 id=\"answer-b-code-b-will-execute-faster-than-a\"><b>Answer :\u00a0<\/b>B. Code b will execute faster than a<\/h3>\n<div class=\"subheading\">\n<h2 id=\"explanation\">Explanation:<\/h2>\n<\/div>\n<div class=\"Content\">\n<div class=\"hddn\">\n<ul>\n<li>Both codes are taking two steps of operation, so same complexity.<\/li>\n<li>But if we consider the overhead of\u00a0<a href=\"https:\/\/www.wikitechy.com\/tutorials\/c-programming\/loops-in-c\" target=\"_blank\" rel=\"noopener\">looping<\/a>\u00a0(as it takes time to increment counter) then code b will be faster.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Answer :\u00a0B. Code b will execute faster than a<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"passster_activate_protection":false,"passster_protect_child_pages":"","passster_protection_type":"password","passster_password":"","passster_activate_overwrite_defaults":"","passster_headline":"","passster_instruction":"","passster_placeholder":"","passster_button":"","passster_id":"","passster_activate_misc_settings":"","passster_redirect_url":"","passster_hide":"no","passster_area_shortcode":"","gtb_hide_title":false,"gtb_wrap_title":false,"gtb_class_title":"","gtb_remove_headerfooter":false,"footnotes":""},"categories":[16505],"tags":[16493,16494,2044,16495,2045,2046,2047,2048,2049,2050,2051,2052,2053,2054,2055,2056,2057,2058,16502,2059,2060,2061,16496,16497,16498,16476,16488,16454,16453,16499,16500,16501,1771,16431,16503],"class_list":["post-2652","post","type-post","status-publish","format-standard","hentry","category-recursion-and-iteration","tag-33-matrix-addition-program-in-c","tag-addition-of-two-matrix-in-c-using-2d-array","tag-c-functions-list","tag-c-program-for-matrix-addition-and-subtraction-using-two-dimensional-array","tag-c-programming-functions-exercises","tag-c-programming-if-else-example","tag-c-programming-if-else-exercises","tag-c-if-else-practice-problems","tag-else-if-ladder-in-c-flowchart","tag-else-if-statement-c-programming","tag-function-call-in-c","tag-function-declaration-in-c","tag-functions-in-c-programming-with-examples","tag-if-else-if-ladder-example-in-java","tag-if-else-if-ladder-in-c","tag-if-else-ladder-in-java","tag-if-else-statement-c","tag-if-else-statement-java","tag-matrix-multiplication-in-c","tag-nested-if-else-c","tag-nested-if-else-in-c-programming-examples","tag-nested-if-else-in-java","tag-program-to-sum-the-rows-of-2x2-matrices","tag-program-to-sum-the-rows-of-2x2-matrices-stored-in-the-array-a","tag-ravi-and-rupali-are-asked-to-write-a-program-to-sum-the-rows","tag-recursion-in-c","tag-recursion-program-in-c","tag-recursion-vs-iteration-c","tag-recursion-vs-iteration-example","tag-sum-of-elements-in-2d-array-in-c","tag-sum-of-rows-and-columns-in-2d-array-in-c","tag-sum-of-rows-and-columns-in-2d-array-in-java","tag-syntax-of-function-in-c","tag-tcs-ninja-coding-questions-with-answers","tag-types-of-functions-in-cuser-defined-functions-in-c"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - 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