9511_workbook

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commit 82f61a5ffbdbe01c44f23c7d1f5d8e534cb4db0e
parent db6b6ed9955dce8a2bfafb2b8eb1b115063d9c5c
Author: klewer-martin <martin.cachari@gmail.com>
Date:   Wed, 31 Mar 2021 21:08:43 -0300

Update: added ex46.c

Diffstat:
A
guia03/ex46.c
 | 
59
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 59 insertions(+), 0 deletions(-)
diff --git a/guia03/ex46.c b/guia03/ex46.c
@@ -0,0 +1,59 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#define N 3
+#define M 4
+
+void m_initrand(size_t r, size_t c, double matrix[r][c]);
+void m_print(size_t r, size_t c, double matrix[r][c]);
+void m_transpose(size_t r, size_t c, double matrix[r][c], double matrix_t[c][r]);
+
+int main (void)
+{
+    double matrix[N][M];
+    double matrix_transpose[M][N];
+
+    m_initrand(N, M, matrix);
+    m_print(N, M, matrix);
+    putchar('\n');
+    
+    m_transpose(N, M, matrix, matrix_transpose);
+    m_print(M, N, matrix_transpose);
+
+
+    return 0;
+}
+
+void m_initrand(size_t r, size_t c, double matrix[r][c])
+{
+    srand((unsigned int)time(NULL));
+
+    for(size_t i = 0; i < N; i++) {
+        for(size_t j = 0; j < M; j++) {
+            matrix[i][j] = ((double)rand()/(double)(RAND_MAX)) * 20;
+        }
+    }
+}
+
+void m_print(size_t r, size_t c, double matrix[r][c])
+{
+    for(size_t i = 0; i < r; i++) {
+        putchar('(');
+        putchar(' ');
+        for(size_t j = 0; j < c; j++) {
+            printf("%6.2f ", matrix[i][j]);
+        }
+        putchar(')');
+        putchar('\n');
+    }
+}
+
+void m_transpose(size_t r, size_t c, double matrix[r][c], double matrix_t[c][r])
+{
+    for(size_t i = 0; i < r; i++) {
+        for(size_t j = 0; j < c; j++)
+            matrix_t[j][i] = matrix[i][j];
+
+    }
+}