Count the file matrix

[gionna]

code Like, as long as I've been watching, the code's right. sin for the introduction of size from the keyboard removes the matrix filled with zeros When I added

if(fp==NULL)
{
   puts("Open file error");
   return;
}

"Open file error."

Please tell me what the problem is.

printf("Введите количество строк матрицы А ");
scanf("%d", &m);
printf("Введите количество столбцов матрицы А ");
scanf("%d", &n);
float A[m][n];
FILE* fp;

fp = fopen("matrixA.txt", "rt");
if (fp == NULL)

{

puts("Open file error");

return;

}
for (i = 0; i < m; i++)

{

for (j = 0; j < n; j++)

{

fscanf(fp, "%f ", &A[i][j]);

}

}
printf("\nМатрица А \n");
for (i = 0; i < m; i++)

{

for (j = 0; j < n; j++)

{

printf("%f\t", A[i][j]);

}
printf("\n");

}
fclose(fp);

[tahishae]

The problem is, you don't open the file. matrixA.txt♪ He's probably just gone. current cataloguefrom which your program is launched.

The fact that there wasn't a report earlier doesn't mean that everything was good-- just the program didn't complain that it was really bad... :