Compilare: user.cpp: In function ‘int main()’: user.cpp:32:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<strlen(c);i++) ^ user.cpp:26:31: warning: unused variable ‘ik’ [-Wunused-variable] long long n,k=0,nf=1,kf=1,ik,x,y,ikf=1,inkf=1,rez; ^ user.cpp:29:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&p); ^ user.cpp:30:21: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(c,10002,f); ^ user.cpp:31:21: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(c,10002,f); ^