Compilare: user.cpp: In function ‘int main()’: user.cpp:23:27: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[252]’ [-Wformat=] fscanf(f,"%s\n",&sir+1); ^ user.cpp:45:23: warning: unused variable ‘x’ [-Wunused-variable] int maxi=-1,poz=0,x; ^ user.cpp:19:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%c",&c); ^ user.cpp:23:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s\n",&sir+1); ^