Compilare: user.c: In function ‘main’: user.c:12:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &n, &m ); ^ user.c:15:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &a[i][j] ); ^ user.c:8:37: warning: ‘cc1’ may be used uninitialized in this function [-Wmaybe-uninitialized] int n, m, i, j, c1, nr, m1, m2, cc1; ^ user.c:8:21: warning: ‘c1’ may be used uninitialized in this function [-Wmaybe-uninitialized] int n, m, i, j, c1, nr, m1, m2, cc1; ^