Compilare: user.c: In function ‘cmmdc’: user.c:5:5: warning: type of ‘a’ defaults to ‘int’ [enabled by default] int cmmdc(a,b) ^ user.c:5:5: warning: type of ‘b’ defaults to ‘int’ [enabled by default] user.c: In function ‘main’: user.c:38:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&T); ^ user.c:42:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&a,&b,&c); ^