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include define MAX 100 int main int i j int m n int a MAX printf Please input the line scanf d printf Please input the row scanf d printf Please input the data for i 0 i m n i scanf d for i 0 i m i for j 0 j n j printf d t a i m j printf n getch return 0 include include int main int a int n m i j len printf 请输入矩阵行数 scanf d printf 请输入矩阵列数 scanf d len m n a NULL a int malloc sizeof len printf 输入矩阵元素 for i 0 i len i scanf d for i 0 i n i for j 0 j m 1 j printf d a n i j printf d n a n i j return 0