Compilare: user.cpp: In function ‘int main()’: user.cpp:29:41: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘bool*’ [-Wformat=] fscanf (in, "%d", &mat[i][j]); ^ user.cpp:23:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%d", &n); ^ user.cpp:29:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%d", &mat[i][j]); ^