change the dir to English

Algorithm Job Interview/测试代码/print_matrix.c

@@ -0,0 +1,43 @@
+#include "stdio.h"
+
+// a[i*rows+j]
+void print_matrix_incircle(int *matrix,int rows,int cols,int start){
+	int endX = cols-start-1;
+	int endY = rows-start-1;
+
+	//然后依次打印 上，右，下，左
+	for(int i=start;i<=endX;i++){
+		printf("%d ",matrix[start*rows+i]);
+	}
+
+	for(int i=start+1;i<=endY;i++){
+		printf("%d ",matrix[i*rows+endX]);
+	}
+
+	for(int i=endX-1;i>=start;i--){
+		printf("%d ",matrix[endY*rows+i]);
+	}
+
+	for(int i=endY-1;i>start;i--){
+		printf("%d ",matrix[i*rows+start]);
+	}
+}
+
+void print_matrix(int *matrix,int rows,int cols){
+	if(matrix==NULL) return ;
+	if(rows<=0 || cols<=0) return;
+
+	int start = 0;
+	while(start*2<cols && start*2<rows){
+		print_matrix_incircle(matrix,rows,cols,start);
+		start++;
+	}
+}
+
+
+int main(int argc, char const *argv[])
+{
+	int matrix[] = {1,2,3,4, 5,6,7,8, 9,10,11,12, 13,14,15,16};
+	print_matrix(matrix,4,4);
+	return 0;
+}