多维矩阵转一维矩阵.c

/*
 多维矩阵转一维矩阵
*/

#include <stdio.h>
#include <stdlib.h>
int main(void) {
    int arr1[3][4] = {{1, 2, 3, 4},
        {5, 6, 7, 8},
        {9, 10, 11, 12}};
    int arr2[12] = {0};
    int row, column, i;
    printf("原二维资料：\n");
    for(row = 0; row < 3; row++) {
        for(column = 0; column < 4; column++) {
            printf("%4d", arr1[row][column]);
        }
        printf("\n");
    }
    printf("\n以列为主：");
    for(row = 0; row < 3; row++) {
        for(column = 0; column < 4; column++) {
            i = column + row * 4;
            arr2[i] = arr1[row][column];
        }
    }
    for(i = 0; i < 12; i++)
        printf("%d ", arr2[i]);
    printf("\n以行为主：");
    for(row = 0; row < 3; row++) {
        for(column = 0; column < 4; column++) {
            i = row + column * 3;
            arr2[i] = arr1[row][column];
        }
    }
    for(i = 0; i < 12; i++)
        printf("%d ", arr2[i]);
    printf("\n");
    return 0;
}