輸出4×4數(shù)組的對(duì)角線之和 求n×n矩陣對(duì)角線元素之和
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而本篇論文的目的是要包括包括包括<<<;T<;T<;T<;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;lt;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T小時(shí)>;t;t;t;H>;t;t;t;t;H>;t;t;t;H>;t;t;t;t;t;t;x 4的整數(shù)矩陣。它被分成4行,每行有4個(gè)整數(shù),整數(shù)之間有空格。[輸出]輸出矩陣的外圍元素、主對(duì)角線元素和次對(duì)角線元素之和。[輸入示例]1 24 56 7 8 90 1 2 34 5 6 7[輸出示例]521718[提示]要找到三種類型元素的和,可以定義三個(gè)不同的和變量,在遍歷數(shù)組元素的循環(huán)中,通過三次條件判斷可以得到三種類型元素的和。設(shè)行下標(biāo)為I,列下標(biāo)為j,研究了三類元素的下標(biāo)特征。外圍元素的行下標(biāo)i==0或i==n-1(其中n為4),或列下標(biāo)j==0或j==n-1;主對(duì)角線上元素的行下標(biāo)和列下標(biāo)相等(i==j);次對(duì)角線上元素的行下標(biāo)和列下標(biāo)之和等于n-1(i j==n-1)。