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printf("ho_tari\n");
sumMatrix 본문
#include <stdio.h>
int main(void)
{
int matrix[3][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}};
// {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
int total = 0;
for (int i = 0; i < 3; ++i)
{
for (int j = 0; j < 4; ++j)
{
total += matrix[i][j];
}
}
printf("sum: %d\n", total);
return 0;
}
#include <stdio.h>
int sumMatrix(const int (*pMatrix)[4], int row, int col)
{
int total;
for (int i = 0; i < row; ++i)
{
for (int j = 0; j < col; ++j)
{
total = total + pMatrix[i][j]; // *(pMatrix[i] + j) == *(*(pMatrix + i) + j)
}
}
return total;
}
/*
int sumMatrix(int *matrix, int row, int col)
{
int total = 0;
for (int i = 0; i < row; ++i)
{
for (int j = 0; j < col; ++j)
{
total = total + *(matrix + i * col +j);
}
}
return total;
}
*/
int main(void)
{
//int row = 3;
//int col = 4;
int matrix[3][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}};
//int total = sumMatrix(&matrix[0][0], 3, 4);
int total = sumMatrix(matrix, 3, 4);
printf("sum: %d\n", total);
return 0;
}
<compile 결과>
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