Compilare: user.c: In function ‘main’: user.c:8:21: warning: unused variable ‘y’ [-Wunused-variable] int n, m, i, j, y, min, mem, min2, mem2; ^ user.c:11:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ user.c:14:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &mat[i][j]); ^ user.c:34:31: warning: ‘min2’ may be used uninitialized in this function [-Wmaybe-uninitialized] din[i][j]=mem2+mat[i-1][j]+mat[i][j]; ^