C語言實作矩陣翻轉 上下翻轉與左右翻轉
執行個體代碼：
#include
void matrix (int m, int n, int t)
{
int arr[m][n];
int i, j, k;
for (i = 0; i < m; i++){
for (j = 0; j < n; j++){
scanf("%d", &arr[i][j]);
}
}
if (t == 0){//左右翻轉
for (i = 0; i < m; i++){
for (j = n-1; j >= 0; j--){
if ( j == 0 ) {
printf("%d", arr[i][j]);
}
else {
printf("%d ", arr[i][j]);
}
}
printf("\n");
}
}
else if (t == 1){//上下翻轉
for (i = m-1; i >= 0; i--){
for (j = 0; j < n; j++){
if ( j == n - 1 ) {
printf("%d", arr[i][j]);
}
else {
printf("%d ", arr[i][j]);
}
}
printf("\n");
}
}
}
int main()
{
int m, n, t;
scanf("%d %d %d", &m, &n, &t);
matrix (m, n, t);
return 0;
}
動态配置設定記憶體
void matrix (int m, int n, int t)
{
int i, j;
int **arr=(int**)malloc(m*sizeof(int*));
for(i = 0; i < m; i++)
{
arr[i] = (int*)malloc(n * sizeof(int));
for(j = 0; j < n;j++)
{
scanf("%d", &arr[i][j]);
}
}
if (t == 0){//左右翻轉
for (i = 0; i < m; i++){
for (j = n-1; j >= 0; j--){
if ( j == 0 ) {
printf("%d", arr[i][j]);
}
else {
printf("%d ", arr[i][j]);
}
}
printf("\n");
}
}
else if (t == 1){//上下翻轉
for (i = m-1; i >= 0; i--){
for (j = 0; j < n; j++){
if ( j == n - 1 ) {
printf("%d", arr[i][j]);
}
else {
printf("%d ", arr[i][j]);
}
}
printf("\n");
}
}
}
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