题目描述
<p> <!--[if gte mso 9]>Normal07.8 磅02falsefalsefalseMicrosoftInternetExplorer4<![endif]--> </p> <p> <!--[if gte mso 9]><![endif]--><!--[if gte mso 10]> <![endif]--><span style="font-size:10.5pt;font-family:宋体;color:black;">输入</span><span style="font-size:10.5pt;font-family:"color:black;">2</span><span style="font-size:10.5pt;font-family:宋体;color:black;">个正整数</span><span style="font-size:10.5pt;font-family:"color:black;">m </span><span style="font-size:10.5pt;font-family:宋体;color:black;">和</span><span style="font-size:10.5pt;font-family:"color:black;"> n(1</span><span style="font-size:10.5pt;font-family:宋体;color:black;">≤</span><span style="font-size:10.5pt;font-family:"color:black;">m</span><span style="font-size:10.5pt;font-family:宋体;color:black;">≤</span><span style="font-size:10.5pt;font-family:"color:black;">6,1</span><span style="font-size:10.5pt;font-family:宋体;color:black;">≤</span><span style="font-size:10.5pt;font-family:"color:black;">n</span><span style="font-size:10.5pt;font-family:宋体;color:black;">≤<span>6</span></span><span style="font-size:10.5pt;font-family:"color:black;">),</span><span style="font-size:10.5pt;font-family:宋体;color:black;">然后输入矩阵</span><span style="font-size:10.5pt;font-family:"color:black;"> a</span><span style="font-size:10.5pt;font-family:宋体;color:black;">（</span><span style="font-size:10.5pt;font-family:"color:black;">m</span><span style="font-size:10.5pt;font-family:宋体;color:black;">行</span><span style="font-size:10.5pt;font-family:"color:black;">n</span><span style="font-size:10.5pt;font-family:宋体;color:black;">列）中的元素，分别计算并输出各行元素之和。</span> </p>
输入格式
输出格式
样例
样例输入 1
2 2
1 2
3 4
样例输出 1
第1行元素之和为3
第2行元素之和为7
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