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include <stdio.h>
#define COLS 4
int sum_1d(int arr[], int n);
int sum_2d(int arr[][COLS], int rows);
int main()
{
int a = 1;
3; //Literals are constants that aren't symbolic
3.14f;
int b[2] = { 3,4 };
(int[2]) {3, 4};//compound literal
//int c[2] = (int[2]){ 3,4 }; //error
int arr1[2] = { 1,2 };
int arr2[2][COLS] = { {1,2,3,4},{5,6,7,8,} };
printf("%d\n", sum_1d(arr1, 2));
printf("%d\n", sum_2d(arr2, 2));
printf("\n");
printf("%d\n", sum_1d((int[2]) { 1, 2 }, 2));
printf("%d\n", sum_2d((int[2][COLS]){ {1,2,3,4},{5,6,7,8} }, 2));
printf("\n");
int* ptr1;
int(*prt2)[COLS];
ptr1 = (int[2]){ 1,2 };
ptr2 = (int[2][COLS]){ {1,2,3,4},{5,6,7,8,} };
printf("%d\n", sum_1d(ptr1, 2));
printf("%d\n", sum_2d(ptr2, 2));
printf("\n");
return 0;
}
int sum_1d(int arr[],int n)
{
int total = 0;
for (int i = 0; i < n; ++i)
total += arr[i];
return total;
}
int sum2d(int arr[][COLS], int rows)
{
int total = 0;
for (int r = 0; r < rows; r++)
for (int c = 0; c < COLS; c++)
total += arr[r][c];
return total;
}
저는 다 그대로 입력한거같은데 도대체 왜안되는거죠?