Compilare: user.c: In function ‘cex’: user.c:22:5: warning: implicit declaration of function ‘memset’ [-Wimplicit-function-declaration] memset( f, 0, sizeof( f ) ); ^ user.c:22:5: warning: incompatible implicit declaration of built-in function ‘memset’ [enabled by default] user.c: In function ‘main’: user.c:63:17: warning: incompatible implicit declaration of built-in function ‘memset’ [enabled by default] memset( dcex, 0, sizeof( dcex ) ); ^ user.c:31:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d", &n, &k, &d ); ^ user.c:33:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &nr ); ^ user.c:35:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &x ); ^